79 results on '"Zhi-Qun Liang"'
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2. Preparation, structural characterisation, and antioxidant activities of polysaccharides from eight boletes (Boletales) in tropical China
- Author
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Run Tian, Hui Chai, Jun-Qiang Qiu, Zhi-Qun Liang, Hui-Jing Xie, Yong Wang, and Nian-Kai Zeng
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Crocinoboletus rufoaureus ,antioxidant activity ,physicochemical property ,polysaccharides ,boletes ,Biology (General) ,QH301-705.5 ,Microbiology ,QR1-502 - Abstract
Polysaccharides in boletes (Boletales) are economically significant to both function food and medicinal industries. The polysaccharides were extracted from the fruit bodies of eight boletes, namely, Aureoboletus longicollis, Butyriboletus hainanensis, Crocinoboletus rufoaureus, Hemioporus japonicus, Neoboletus infuscatus, Neoboletus obscureumbrinus, Tylopilus otsuensis, Xanthoconium fusciceps, which were collected from tropical China; their physicochemical properties and antioxidant activities were characterised and evaluated, respectively. The results revealed that the polysaccharides among the eight boletes were mainly composed of glucose, mannose, and galactose, with a broad molecular weight range, and contained a pyranose ring revealed by FT-IR and NMR spectral analyses. Many factors such as different species of boletes, geographic conditions, molecular weight, configuration, and monosaccharide content may affect the antioxidant power of polysaccharides, simultaneously, instead of one single factor. The antioxidant activities of the polysaccharides were measured according to in vitro assays of DPPH scavenging, superoxide anion scavenging, and ferrous ion reducing tests. The polysaccharide of C. rufoaureus has greatly superior antioxidant activity and it could serve as potential functional food or medicine.
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- 2022
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3. Notes on four species of Russula subgenus Heterophyllidiae (Russulaceae, Russulales) from southern China
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Yun-Xiao Han, Zhi-Qun Liang, and Nian-Kai Zeng
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ectomycorrhizal fungi ,molecular phylogeny ,morphology ,new taxa ,taxonomy ,Microbiology ,QR1-502 - Abstract
Heterophyllidiae, one of the main subgenus of Russula (Russulaceae, Russulales), is both ecologically and economically important. Although many studies have focused on subgenus Heterophyllidiae in China, the diversity, taxonomy, and molecular phylogeny still remained incompletely understood. In the present study, two new species, R. discoidea and R. niveopicta, and two known taxa, R. xanthovirens and R. subatropurpurea, were described based on morphology and molecular phylogenetic analyses of ITS and 28S DNA sequences with new collections of subgenus Heterophyllidiae from southern China. Both morphological and phylogenetic analyses consistently confirmed that R. niveopicta and R. xanthovirens belong to the subsect. Virescentinae, R. discoidea and R. subatropurpurea come under subsect. Heterophyllae, and R. prasina is synonymized with R. xanthovirens.
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- 2023
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4. Updated taxonomy of Chinese Cantharellus subgenera Afrocantharellus and Magni (Hydnaceae, Cantharellales): Three new taxa and amended descriptions of one previous species
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Yu-Zhuo Zhang, Hua-Zhi Qin, Zuo-Hong Chen, Wen-Fei Lin, Zhi-Qun Liang, Shuai Jiang, and Nian-Kai Zeng
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chanterelle ,molecular phylogeny ,morphology ,new taxa ,taxonomy ,Microbiology ,QR1-502 - Abstract
Cantharellus, one of the main genera of Hydnaceae (Cantharellales), is both ecologically and economically important. Although many studies have focused on this genus in China, the taxonomy should be further updated. In the present study, Cantharellus subgenera Afrocantharellus and Magni were investigated based on morphology and molecular phylogenetic analyses with new collections from China. Five phylogenetic species were recognized among the studied collections, three of which were described as new: C. bellus, C. cineraceus, and C. laevigatus; one was previously described taxon: C. hygrophoroides; and the remaining species was not defined due to the paucity of the materials. Among the four described species, both C. bellus and C. laevigatus are members of subgen. Magni, whereas C. cineraceus and C. hygrophoroides belong to subgen. Afrocantharellus.
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- 2023
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5. A Contribution to Knowledge of Craterellus (Hydnaceae, Cantharellales) in China: Three New Taxa and Amended Descriptions of Two Previous Species
- Author
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Yu-Zhuo Zhang, Ping Zhang, Bart Buyck, Li-Ping Tang, Zhi-Qun Liang, Ming-Sheng Su, Yan-Jia Hao, Hong-Yan Huang, Wen-Hao Zhang, Zuo-Hong Chen, and Nian-Kai Zeng
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East Asia ,molecular phylogeny ,morphology ,new taxa ,taxonomy ,Microbiology ,QR1-502 - Abstract
Species of Craterellus (Hydnaceae, Cantharellales) in China are investigated on the basis of morphological and molecular phylogenetic analyses of DNA sequences from nuc 28S rDNA D1-D2 domains (28S) and nuc rDNA internal transcribed spacer ITS1-5.8S-ITS2 region. Five species are recognized in China, of which three of them are described as new, viz. C. fulviceps, C. minor, and C. parvopullus, while two of them are previously described taxa, viz. C. aureus, and C. lutescens. A key to the known Chinese taxa of the genus is also provided.
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- 2022
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6. Morphological and Phylogenetic Evidences Reveal Four New Species of Cantharellus Subgenus Cantharellus (Hydnaceae, Cantharellales) From China
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Yu-Zhuo Zhang, Wen-Fei Lin, Bart Buyck, Zhi-Qun Liang, Ming-Sheng Su, Zuo-Hong Chen, Ping Zhang, Shuai Jiang, Dong-Yu An, and Nian-Kai Zeng
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chanterelle ,molecular phylogeny ,morphology ,new taxa ,taxonomy ,Microbiology ,QR1-502 - Abstract
Species of Cantharellus subgenus Cantharellus are interesting and important for their mycorrhizal properties, medicinal values, and edibility. In China, there are many undescribed species of the subgenus. In this study, four new species of subg. Cantharellus, viz. Cantharellus albopileatus, Cantharellus chuiweifanii, Cantharellus pinetorus, and Cantharellus ravus from Hainan and Hunan Provinces, respectively, were described based on morphological and phylogenetic evidence as a contribution to the knowledge of the species diversity in China. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microstructures of these four new species are presented as well as comparisons with related species.
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- 2022
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7. Purification and Structure Characterization of the Crude Polysaccharide from the Fruiting Bodies of Butyriboletus pseudospeciosus and Its Modulation Effects on Gut Microbiota
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Run Tian, Lu-Ling Wu, Hong-Fu Li, Zhi-Qun Liang, Pei-Hu Li, Yong Wang, and Nian-Kai Zeng
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crude polysaccharide from Butyriboletus pseudospeciosus (BPP) ,physicochemical properties ,functions ,gut microbiota ,Tax4Fun ,Organic chemistry ,QD241-441 - Abstract
Polysaccharides from the species of Boletaceae (Boletales, Agaricomycetes, Basidiomycota) are economically significant to both functional foods and medicinal industries. The crude polysaccharide from Butyriboletus pseudospeciosus (BPP) was prepared, and its physicochemical properties were characterized through the use of consecutive experimental apparatus, and its impact on the gut microbiota of Kunming mice was evaluated. Analyses of the structure characteristics revealed that BPP was mainly composed of Man, Glc, and Gal, possessing the pyranose ring and β/α-glycosidic linkages. TG analysis exhibited that BPP had great heat stability. The SEM observation performed demonstrated that BPP appeared with a rough, dense, and porous shape. Through the BPP intervention, the serum and fecal biochemical index in mice can be improved obviously (p < 0.05). The abundance of beneficial microbiota in the BPP-treated group was significantly increased, while the abundance of harmful microbiota was significantly decreased (p < 0.05). Based on the Tax4Fun, we also revealed the relationship between the species of gut microbiota and showed that the high dose of BPP has significantly changed the functional diversities compared with those in other groups (p < 0.05). The results suggest that B. pseudospeciosus could serve as potential functional food or medicine.
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- 2023
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8. Analysis of aromatic components of two edible mushrooms, Phlebopus portentosus and Cantharellus yunnanensis using HS-SPME/GC-MS
- Author
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Run Tian, Zhi-Qun Liang, Yong Wang, and Nian-Kai Zeng
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Edible fungi ,Volatile components ,HS-SPME/GC-MS ,Chemistry ,QD1-999 - Abstract
A headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS) was used to evaluate the profile of the volatile components that accounted for the aroma of two edible mushrooms, viz. Phlebopus portentosus and Cantharellus yunnanensis. There were 51 and 69 volatile compounds identified from P. portentosus and C. yunnanensis, respectively. These compounds were mainly acids, hydrocarbons, ketones, esters, aldehydes, and alcohols, of which acetic acid was most abundant among these volatile components. Onanoic acid, 9-oxo-,methyl ester, 2-pentyl-furan, and 5,6-dihydro-2-pyranone were discovered in the mushrooms for the first time, and the volatile compounds of C. yunnanensis was also investigated for the first time. In addition, the volatile compounds of P. portentosus and C. yunnanensis were analyzed by principal components analysis (PCA). The findings reveal the differences among samples and provide the basic data for the chemotaxonomy in studying P. portentosus and C. yunnanensis.
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- 2022
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9. New and noteworthy boletes from subtropical and tropical China
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Hui Chai, Zhi-Qun Liang, Rou Xue, Shuai Jiang, Shi-Hong Luo, Yong Wang, Lu-Ling Wu, Li-Ping Tang, Yun Chen, Deng Hong, and Nian-Kai Zeng
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Botany ,QK1-989 - Abstract
The morphology, ecology, and phylogenetic relationships of specimens of the family Boletaceae from subtropical and tropical China were investigated. Four species, Butyriboletus huangnianlaii, Lanmaoa macrocarpa, Neoboletus multipunctatus, and Sutorius subrufus, are new to science. Chalciporus radiatus and Caloboletus xiangtoushanensis are redescribed. Caloboletus guanyui is proposed to replace Boletus quercinus Hongo, an illegitimate later homonym. The recently described Tylopilus callainus is synonymized with the Japanese Boletus virescens, and the new combination T. virescens (Har. Takah. & Taneyama) N.K. Zeng et al. is proposed. Moreover, Neoboletus is treated as an independent genus based on evidence from morphology and molecular phylogenetic data in the present study, and many previously described taxa of Sutorius are recombined into Neoboletus: N. ferrugineus (G. Wu et al.) N.K. Zeng et al., N. flavidus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N. hainanensis (T.H. Li & M. Zang) N.K. Zeng et al., N. obscureumbrinus (Hongo) N.K. Zeng et al., N. rubriporus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N. sanguineoides (G. Wu & Zhu L. Yang) N.K. Zeng et al. , N. sanguineus (G. Wu & Zhu L. Yang) N.K. Zeng et al., and N. tomentulosus (M. Zang et al.) N.K. Zeng et al.
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- 2019
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10. Austroboletus brunneisquamus (Boletaceae, Boletales), a New Ectomycorrhizal Fungus from a Tropical Rainforest, China
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Chang Xu, Zhi-Qun Liang, Ming-Sheng Su, Shuai Jiang, Yun Chen, Yu-Guang Fan, and Nian-Kai Zeng
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boletes ,molecular phylogeny ,morphology ,new taxon ,taxonomy ,Plant ecology ,QK900-989 - Abstract
Austroboletusbrunneisquamus (Boletaceae/Boletales), an ectomycorrhizal fungus, is described as a new species from a tropical rainforest in China based on morphological and molecular evidence. It is morphologically characterized by a subtomentose pileal surface when young, which cracks into areolae, having large, pale brown and brown to dark brown scales, a stipe with yellowish brown reticulation, basidiospores measuring (11–)12–14.5(–15) × 6–8(–8.5) μm, with fine cristate to subreticulate ornamentation, and a pileipellis in the form of a cutis. A detailed description, color photographs of fresh basidiomata, and line drawings of microscopic features of the new species are presented.
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- 2021
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11. Isolation of the Oleaginous Yeasts from the Soil and Studies of Their Lipid-Producing Capacities
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Li-Xia Pan, Deng-Feng Yang, Li Shao, Wei Li, Gui-Guang Chen, and Zhi-Qun Liang
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isolation and identification of oleaginous yeast ,xylose ,glycerol ,biodiesel ,cocoa butter substitute ,Biotechnology ,TP248.13-248.65 ,Food processing and manufacture ,TP368-456 - Abstract
D-xylose is one of the most abundant pentose sugars in nature. To isolate oleaginous yeasts that can utilize xylose from diverse soil samples, soils from a litchi orchard, longan orchard, carambola orchard, and woods were collected, yeasts were isolated by the glycerol enrichment and their xylose-assimilating capacities were measured. A subset of these isolates was grown in nitrogen-limited media and then screened for potential oleaginous yeasts by the Sudan Black B staining, after which their lipid-producing capacities were studied. There were 13 strains of oleaginous yeasts identified, and a rapid microbiological assay was provided to exploit microbial lipids that may one day be used as biodiesels or cocoa butter substitute.
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- 2009
12. Production of Polyunsaturated Fatty Acids by Mucor recurvus sp. with Sugarcane Molasses as the Carbon Source
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Zhi-Nian Deng, Nan Li, Yong-Ling Qin, Chun-Lan Chen, and Zhi-Qun Liang
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Mucor recurvus sp. ,polyunsaturated fatty acids ,sugarcane molasses ,fermentation ,cultivation condition ,fatty acid analysis ,Biotechnology ,TP248.13-248.65 ,Food processing and manufacture ,TP368-456 - Abstract
Sugarcane molasses is rich in nutriments and vitamins. It may be used as the carbon source for the production of polyunsaturated fatty acids (PUFA) by Mucor recurvus sp. Using sugarcane molasses, the effects of fermentation parameters and media components on polyunsaturated fatty acid production through both linear and orthogonal array experiments were investigated. The best fermentation conditions for PUFA production were found as follows: 15 % sugarcane molasses, pH=6.0, 28 °C, 5 days, 160 rpm. It was also found that molasses and urea enhanced PUFA production with the optimal carbon to nitrogen (C/N) ratio of 35. Under the most favourable conditions, the total lipid content at 7.13 g/L and PUFA up to 5.74 g/L including (0.82±0.05) g/L of linolenic acid (LA), (1.35±0.02) g/L of γ-linolenic acid (GLA), (0.17±0.06) g/L of α-linolenic acid (ALA), (0.57±0.06) g/L of arachidonic acid (ARA), (0.46±0.07) g/L of eicosapentaenoic acid (EPA) and (0.34±0.08) g/L of docosahexaenoic acid (DHA) were obtained. Our study suggests that sugarcane molasses is a superior alternative carbon source for industrial PUFA production.
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- 2008
13. A contribution to knowledge of Gyroporus (Gyroporaceae, Boletales) in China: three new taxa, two previous species, and one ambiguous taxon
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Hui-Jing Xie, Li-Ping Tang, Man Mu, Yu-Guang Fan, Shuai Jiang, Ming-Sheng Su, Zhi-Qun Liang, and Nian-Kai Zeng
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Agricultural and Biological Sciences (miscellaneous) ,Ecology, Evolution, Behavior and Systematics - Published
- 2022
14. Updated taxonomy of Chinese Phylloporus (Boletaceae, Boletales): six new taxa and four redescribed species
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Lu-Ling Wu, Ming-Sheng Su, Shuai Jiang, Yan-Liu Chen, Yan-Jia Hao, Ping Zhang, Nian-Kai Zeng, Zhi-Qun Liang, and Yu-Guang Fan
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Taxon ,biology ,Phylogenetic tree ,Boletales ,Boletaceae ,Zoology ,Key (lock) ,Taxonomy (biology) ,Internal transcribed spacer ,biology.organism_classification ,Agricultural and Biological Sciences (miscellaneous) ,Phylloporus ,Ecology, Evolution, Behavior and Systematics - Abstract
Species of Phylloporus (Boletaceae, Boletales) in China were investigated using morphology and molecular phylogenetic analyses of DNA sequences from the nuclear 28S rDNA D1–D2 domains, rDNA internal transcribed spacer region, and translation elongation factor 1-α gene. Ten species are recognized from China in the present study. Among them, P. alboinfuscatus, P. grossus, P. microsquamus, P. nigrisquamus, P. nigrobrunneus, and P. tenuissimus are new to science; and P. bogoriensis, P. castanopsidis, P. luxiensis, and P. subrubeolus are previously described. Phylloporus megacystidiatus, originally described from southwestern China, is likely conspecific with P. yunnanensis. A key to the Chinese species of Phylloporus is provided. A preliminary biogeographical analysis showed that the affinities of Phylloporus species between subtropical/tropical China and Thailand were evident, both regions share seven common taxa; P. nigrisquamus and P. microsquamus are closely related to taxa from North/Central America.
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- 2021
15. Buchwaldoboletus xylophilus and Phlebopus portentosus, two non-ectomycorrhizal boletes from tropical China
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Hui-Jing Xie, Xiao-Hua Deng, Chun-Xia Zhang, Nian-Kai Zeng, Zhi-Qun Liang, and Ming-Xia He
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Bolete ,Phylogenetic tree ,biology ,Boletales ,Xylophilus ,Molecular phylogenetics ,Botany ,Basidiocarp ,Taxonomy (biology) ,Plant Science ,Internal transcribed spacer ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
Buchwaldoboletus xylophilus and Phlebopus portentosus (Boletales) are two non-ectomycorrhizal boletes, which are widely reported in tropical Asia. However, there is little information available about the taxonomy of these two boletes. Here, B. xylophilus and P. portentosus are redescribed based on morphology and molecular phylogenetic analyses of DNA sequences from nuclear 28S rDNA (28S), nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS), translation elongation factor 1-α gene (TEF1) and the RNA polymerase II second largest subunit gene (RPB2). Detailed descriptions, color photos of fresh basidiomata, and line-drawings of microscopic features of the two taxa are presented.
- Published
- 2021
16. Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China
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XU ZHANG, RUN TIAN, LI-PING TANG, ZHI-QUN LIANG, WEN-HAO ZHANG, SHUAI JIANG, CHENG-KAI WANG, and NIAN-KAI ZENG
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Boletaceae ,Agaricomycetes ,Basidiomycota ,Fungi ,Plant Science ,Biodiversity ,Boletales ,Ecology, Evolution, Behavior and Systematics ,Taxonomy - Abstract
Species of Aureoboletus (Boletaceae, Boletales) are diverse in China, and many taxa in the country have been described to date. Here, additional three new species, viz. A. guangdongensis, A. microcarpus, and A. rugosus are described based on morphology and molecular phylogenetic analyses of DNA sequences. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of the microscopic features of the three new taxa are presented.
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- 2022
17. Neoboletus infuscatus, a new tropical bolete from Hainan, southern China
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Xu Zhang, Hui-Jing Xie, Nian-Kai Zeng, Hong-Xu Mi, Zhi-Qun Liang, Shuai Jiang, and Yun Chen
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Bolete ,food.ingredient ,food ,Southern china ,Ecology ,Neoboletus ,Molecular phylogenetics ,Taxonomy (biology) ,Morphology (biology) ,Biology ,Ecology, Evolution, Behavior and Systematics - Published
- 2021
18. Russula hainanensis (Russulaceae, Russulales), a new species from tropical China
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YUN-XIAO HAN, ZHI-QUN LIANG, SHUAI JIANG, and NIAN-KAI ZENG
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Agaricomycetes ,Russulaceae ,Basidiomycota ,Fungi ,Plant Science ,Biodiversity ,Ecology, Evolution, Behavior and Systematics ,Russulales ,Taxonomy - Abstract
Russula hainanensis (Russulaceae, Russulales), a member of Russula subgenus Heterophyllidia section Ingratae, from Hainan, tropical China, is described as new based on morphological and phylogenetic evidence. An illustrated morphological description as well as comparisons with related species are presented.
- Published
- 2022
19. Cantharellus macrocarpus (Cantharellaceae, Cantharellales), a new species from tropical China
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Rou Xue, Nian-Kai Zeng, Lu-Ling Wu, Zhi-Qun Liang, Yu-Zhuo Zhang, and Hui-Jing Xie
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Cantharellales ,Stipe (mycology) ,biology ,Cantharellaceae ,Botany ,Basidiocarp ,Pileipellis ,Hymenophore ,Plant Science ,Subgenus ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics ,Cantharellus - Abstract
Cantharellus macrocarpus, a member of Cantharellus subgenus Cantharellus, is described as a new species from Hainan Province, China. It is characterized by large basidioma with a bright yellow-orange pileus and a well-developed, rugulose hymenophore, cream to pale yellowish stipe, noticeably thickened hyphal walls in the pileipellis, presence of clamp connections in all parts of the basidiomata, and a distribution in tropical Asia. A phylogenetic analysis of DNA sequences from part of the 28S gene and the translation elongation factor 1-a gene (TEF1) confirmed that it forms an independent lineage within subgenus Cantharellus. A detailed description, color photos of fresh basidiomata and line drawings of micromorphological features are presented.
- Published
- 2021
20. The genus Hourangia in China and a description of Aureoboletus erythraeus sp. nov
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Hui-Jing Xie, Yu-Zhuo Zhang, Lu-Ling Wu, Ming-Sheng Su, Rou Xue, Nian-Kai Zeng, Zhi-Qun Liang, Yi Wang, and Shuai Jiang
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Bolete ,Phylogenetic tree ,Genus ,Boletales ,Boletaceae ,Erythraeus ,Molecular phylogenetics ,Zoology ,Taxonomy (biology) ,Plant Science ,Biology ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
The morphology and phylogenetic relationships of species of Hourangia (Boletaceae, Boletales) from China were investigated. Five phylogenetic species are recognized in the country; two of them, H. densisquamata and H. dilatata, are described as new; two of them, H. cheoi and H. nigropunctata, are previously described taxa, and the remaining one is not described due to the paucity of material. Besides specimens of Hourangia, collections of Aureoboletus were also made during field trips in China. The morphological and molecular data indicated that some collections labeled as A. cf. venustus or identified as A. venustus in previous studies represented a new species, therefore the new species A. erythraeus is described, and A. venustus is redescribed. A key to all known taxa of Hourangia is also provided.
- Published
- 2020
21. Two new species of Hortiboletus (Boletaceae, Boletales) from China
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Rou Xue, Shuai Jiang, Yu-Zhuo Zhang, Wen-Fei Lin, Ming-Sheng Su, Nian-Kai Zeng, Zhi-Qun Liang, Lu-Ling Wu, and Hui-Jing Xie
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food.ingredient ,Napaeus ,biology ,Boletales ,Line drawings ,biology.organism_classification ,Agricultural and Biological Sciences (miscellaneous) ,food ,Taxon ,Boletaceae ,Evolutionary biology ,Basidiocarp ,Key (lock) ,Hortiboletus ,Ecology, Evolution, Behavior and Systematics - Abstract
Two new species of Hortiboletus (Boletaceae, Boletales), viz. H. arduinus and H. napaeus, are described based on morphological and molecular data. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microscopic features of the two new taxa are presented. In addition, a key to all known species of Hortiboletus in the world is provided.
- Published
- 2020
22. Rubroboletus flammeus (Boletaceae, Boletales), a novel species unveiled from subtropical China based on morphological and phylogenetic evidences
- Author
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Xu Zhang, Wei-Qiang Qin, Zhi-Qun Liang, Run Tian, and Nian-Kai Zeng
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Basidiomycota ,DNA, Ribosomal Spacer ,Genetics ,General Medicine ,Spores, Fungal ,DNA, Fungal ,Molecular Biology ,Biochemistry ,Microbiology ,Phylogeny - Abstract
Rubroboletus flammeus is described as a new species from subtropical China based on morphological and molecular phylogenetic analyses. It is morphologically characterized by a red to fiery-red basidioma with a dry pileus, a context in pileus white but that in stipe bright yellow, a stipe densely covered with spots, a blue color change of tissues, and a trichoderm-type pileipellis. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microscopic features of the new species are presented. A key to the known Chinese taxa of Rubroboletus is provided.
- Published
- 2022
23. Austroboletus brunneisquamus (Boletaceae, Boletales), a New Ectomycorrhizal Fungus from a Tropical Rainforest, China
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Yun Chen, Shuai Jiang, Ming-Sheng Su, Nian-Kai Zeng, Zhi-Qun Liang, Yu-Guang Fan, and Chang Xu
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Bolete ,new taxon ,Boletales ,Forestry ,Biology ,biology.organism_classification ,taxonomy ,Stipe (botany) ,boletes ,Boletaceae ,Botany ,morphology ,Basidiocarp ,Pileipellis ,QK900-989 ,Plant ecology ,Austroboletus ,molecular phylogeny ,Tropical rainforest - Abstract
Austroboletusbrunneisquamus (Boletaceae/Boletales), an ectomycorrhizal fungus, is described as a new species from a tropical rainforest in China based on morphological and molecular evidence. It is morphologically characterized by a subtomentose pileal surface when young, which cracks into areolae, having large, pale brown and brown to dark brown scales, a stipe with yellowish brown reticulation, basidiospores measuring (11–)12–14.5(–15) × 6–8(–8.5) μm, with fine cristate to subreticulate ornamentation, and a pileipellis in the form of a cutis. A detailed description, color photographs of fresh basidiomata, and line drawings of microscopic features of the new species are presented.
- Published
- 2021
- Full Text
- View/download PDF
24. A Contribution to Knowledge of Gyroporus (Gyroporaceae, Boletales) in China: Three New Taxa and Amended Descriptions of Two Previous Species
- Author
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Li-Ping Tang, Zhi-Qun Liang, Man Mu, Ming-Sheng Su, Shuai Jiang, Yu-Guang Fan, Nian-Kai Zeng, and Hui-Jing Xie
- Subjects
Taxon ,Geography ,biology ,Boletales ,Ecology ,Gyroporus ,China ,biology.organism_classification - Abstract
Some species of Gyroporus (Gyroporaceae, Boletales) in China are investigated on the basis of morphology and molecular phylogenetic analyses. Six Chinese species are recognized in the present study. Among them, G. memnonius, G. porphyreus and G. subglobosus are new to science; G. longicystidiatus and G. paramjitii are previously described; and one ambiguous taxon tentatively named G. cf. castaneus. A key to known species of Gyroporus in China is also provided. A preliminary biogeographical analysis shows that Gyroporus in East Asia and Southeast/South Asia are closely related. Gyroporus longicystidiatus and G. paramjitii are geographically widespread species occurring in East Asia and Southeast/South Asia; G. cf. castaneus is a shared species between East Asia and Europe.
- Published
- 2021
25. Baorangia duplicatopora (Boletaceae, Boletales), a new bolete from tropical China
- Author
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Nian-Kai Zeng, Zhi-Qun Liang, Xu Zhang, Chang Xu, Xin-Hua Fu, and Shuai Jiang
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Bolete ,Boletaceae ,Agaricomycetes ,Boletales ,Basidiomycota ,Fungi ,Context (language use) ,Plant Science ,Biodiversity ,Biology ,biology.organism_classification ,Stipe (mycology) ,Botany ,Basidiocarp ,Hymenophore ,Pileus ,Ecology, Evolution, Behavior and Systematics ,Taxonomy - Abstract
Baorangia duplicatopora is described as a new species from Hainan Province, a tropical region of China. It is morphologically characterized by large to very large basidiomata with a dull rose red, rose pink to purplish red pileus, compound pores, pileus context near hymenophore and stipe context staining blue when injured, a red stipe, and cheilocystidia wider than those of other Baorangia species. Phylogenetic analyses of DNA sequences from part of the 28S gene, the nuc rDNA internal transcribed spacer (ITS) region, and part of the translation elongation factor 1-α gene (TEF1) also confirmed that B. duplicatopora forms an independent lineage within Baorangia. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microscopic features of the new species are presented. A key to species of Baorangia in the world is also provided.
- Published
- 2021
26. The genus Crocinoboletus (Boletaceae, Boletales): a new species and updated information for previously described species
- Author
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Yu-Guang Fan, Nian-Kai Zeng, Zhi-Qun Liang, Yong-Qing Fu, Lu-Ling Wu, Rou Xue, Ming-Sheng Su, and Shuai Jiang
- Subjects
Bolete ,biology ,Stipe (botany) ,Boletales ,Genus ,Boletaceae ,Botany ,Molecular phylogenetics ,Taxonomy (biology) ,Pileus ,Plant Science ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
The morphology, ecology, and phylogenetic relationships of species of Crocinoboletus (Boletaceae, Boletales) were investigated. One species, C. pinetorum, new to science, is characterized by a pileus yellowish orange to pale orange in color, surface of pileus and stipe usually unchanging in color when bruised, shorter basidiospores measuring 9.5–11.5 × 4–5 (–5.5) μm, and its association with pine trees. Information on C. laetissimus and C. rufoaureus is updated. A key to all known taxa of Crocinoboletus is also provided.
- Published
- 2019
27. Two new species of the genus Leccinellum (Boletaceae, Boletales) from the south of China
- Author
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Shuai Jiang, Yan-Jia Hao, Lu-Ling Wu, Ming-Sheng Su, Hui Chai, Rou Xue, Nian-Kai Zeng, and Zhi-Qun Liang
- Subjects
Leccinellum ,biology ,Boletales ,Boletaceae ,Botany ,Basidiocarp ,Pileipellis ,Pileus ,Hymenophore ,Taxonomy (biology) ,Plant Science ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
Two new species of Leccinellum, viz. L. alborufescens and L. fujianense are described based on morphological and molecular evidence. Both species have a rugulose or pitted brown pileus, a red color change of hymenophore and context, and a pileipellis and stipitipellis composed of chains of subglobose to pyriform cells. The differences between them are the width of the hyphae in the pileipellis and the range of distribution as well as the molecular data. Leccinellum alborufescens has hyphae in the pileipellis up to 13 μm in width, and a distribution in tropical China, whereas L. fujianense has pileipellis hyphae up to 20 μm in width, and a distribution in subtropical China. Detailed descriptions, color photos of fresh basidiomata and line drawings of the microstructures of the two new species are presented.
- Published
- 2019
28. Two new species of Chalciporus (Boletaceae, Boletales) from tropical China
- Author
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Nian-Kai Zeng, Zhi-Qun Liang, Xin-Hua Fu, Shuai Jiang, Chang Xu, and Hui-Jing Xie
- Subjects
Taxon ,biology ,Boletales ,Boletaceae ,Line drawings ,Botany ,Basidiocarp ,Key (lock) ,Chalciporus ,biology.organism_classification ,Agricultural and Biological Sciences (miscellaneous) ,Ecology, Evolution, Behavior and Systematics - Abstract
Two new species of Chalciporus (Boletaceae, Boletales), viz. C. nigrofuscus and C. vulparius, are described based on morphological and molecular data. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microscopic features of the two new taxa are presented. In addition, a key to all known species of Chalciporus in China is provided.
- Published
- 2021
29. Cantharellus hainanensis, a new species with a smooth hymenophore from tropical China
- Author
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Shuai Jiang, Ming-Sheng Su, Nian-Kai Zeng, Dong-Yu An, and Zhi-Qun Liang
- Subjects
0301 basic medicine ,biology ,Phylogenetic tree ,030108 mycology & parasitology ,biology.organism_classification ,03 medical and health sciences ,Cantharellales ,Cantharellaceae ,Lithocarpus ,Botany ,Basidiocarp ,Hymenophore ,Subgenus ,Ecology, Evolution, Behavior and Systematics ,Cantharellus - Abstract
Cantharellus hainanensis (Cantharellaceae, Cantharellales), a member of Cantharellus subgenus Cantharellus , is described as a new species from Hainan Island, a tropical region of China. It is morphologically characterized by a small-sized basidioma, a yellow pileal surface without an orange tinge, a smooth to faintly veined hymenophore, smaller basidiospores, and its association with the Lithocarpus in tropical China. The phylogenetic analysis of DNA sequences from the translation elongation factor 1-α gene ( TEF1 ) also confirms that it forms an independent lineage within the subgenus Cantharellus . A detailed description, color photos of fresh basidiomata and line-drawings of microstructures are presented.
- Published
- 2017
30. Marasmius campestris sp. nov. (Marasmiaceae, Agaricales) from tropical China based on morphological and molecular evidence
- Author
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Shuai Jiang, Ming-Sheng Su, Nian-Kai Zeng, and Zhi-Qun Liang
- Subjects
0301 basic medicine ,biology ,030108 mycology & parasitology ,biology.organism_classification ,Marasmius ,03 medical and health sciences ,Marasmiaceae ,Botany ,Basidiocarp ,Agaricales ,Pileipellis ,Taxonomy (biology) ,Pileus ,Internal transcribed spacer ,Ecology, Evolution, Behavior and Systematics - Abstract
Marasmius campestris (Marasmiaceae, Agaricales), a member of sect. Globulares, is described as a new species from Hainan Island, a tropical region of China. It is morphologically characterized by an umbilicate, deeply sulcate and striped, purple-tinged pileus, a stipe covered with tiny scales, large basidiospores, well-developed cheilocystidia with irregular shape, a pileipellis consisting of Globulares-type cells, and growth in grassland. The phylogenetic analyses of DNA sequences from nuc rDNA internal transcribed spacer (ITS) also confirm that it forms an independent lineage within Marasmius. Consequently, a description, color photos of fresh basidiomata and line-drawings of microstructures are presented.
- Published
- 2017
31. New and noteworthy boletes from subtropical and tropical China
- Author
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Shuai Jiang, Li-Ping Tang, Nian-Kai Zeng, Zhi-Qun Liang, Yong Wang, Hui Chai, Deng Hong, Yun Chen, Rou Xue, Shi-Hong Luo, and Lu-Ling Wu
- Subjects
0106 biological sciences ,Bolete ,Boletaceae ,Agaricomycetes ,food.ingredient ,Asia ,Far East ,Molecular phylogeny ,010603 evolutionary biology ,01 natural sciences ,new taxa ,030308 mycology & parasitology ,03 medical and health sciences ,taxonomy ,food ,lcsh:Botany ,morphology ,Plantae ,Ecology, Evolution, Behavior and Systematics ,Family Boletaceae ,0303 health sciences ,Philosophy ,Neoboletus ,Basidiomycota ,lcsh:QK1-989 ,Boletales ,Humanities ,Research Article - Abstract
The morphology, ecology, and phylogenetic relationships of specimens of the family Boletaceae from subtropical and tropical China were investigated. Four species, Butyriboletushuangnianlaii, Lanmaoamacrocarpa, Neoboletusmultipunctatus, and Sutoriussubrufus, are new to science. Chalciporusradiatus and Caloboletusxiangtoushanensis are redescribed. Caloboletusguanyui is proposed to replace Boletusquercinus Hongo, an illegitimate later homonym. The recently described Tylopiluscallainus is synonymized with the Japanese Boletusvirescens, and the new combination T.virescens (Har. Takah. & Taneyama) N.K. Zeng et al. is proposed. Moreover, Neoboletus is treated as an independent genus based on evidence from morphology and molecular phylogenetic data in the present study, and many previously described taxa of Sutorius are recombined into Neoboletus: N.ferrugineus (G. Wu et al.) N.K. Zeng et al., N.flavidus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N.hainanensis (T.H. Li & M. Zang) N.K. Zeng et al., N.obscureumbrinus (Hongo) N.K. Zeng et al., N.rubriporus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N.sanguineoides (G. Wu & Zhu L. Yang) N.K. Zeng et al. , N.sanguineus (G. Wu & Zhu L. Yang) N.K. Zeng et al., and N.tomentulosus (M. Zang et al.) N.K. Zeng et al.
- Published
- 2019
32. Neoboletus infuscatus, a new tropical bolete from Hainan, southern China.
- Author
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Shuai Jiang, Hong-Xu Mi, Hui-Jing Xie, Xu Zhang, Yun Chen, Zhi-Qun Liang, and Nian-Kai Zeng
- Subjects
DNA sequencing ,RAIN forests ,MOLECULAR phylogeny - Abstract
Neoboletus infuscatus (Boletaceae, Boletales) is described as a new species from Yinggeling of Hainan Tropical Rainforest National Park, southern China. It is morphologically characterized by a large basidioma with a nearly glabrous, brownish yellow, yellowish brown to pale brown pileus, pores orangish red when young, yellowish brown to brown when old, context and hymenophore staining blue when injured, a yellow stipe with red punctuations, surfaces of the pileus and the stipe usually covered with a thin layer of white pruina when young. Phylogenetic analyses of DNA sequences from part of the 28S gene, the nuclear rDNA internal transcribed spacer (ITS) region, and part of the translation elongation factor 1-α gene (TEF1) also confirm that N. infuscatus forms an independent lineage within Neoboletus. Detailed morphological description, color photos of fresh basidiomata and line-drawings of microstructures are provided. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
33. Hypholoma cinnabarinum revisited: A contribution to knowledge of Agaricus subgenus Lanagaricus section Trisulphurati (Agaricaceae, Agaricales)
- Author
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Yong Wang, Ming-Sheng Su, Xiong-Dong Chen, Nian-Kai Zeng, and Zhi-Qun Liang
- Subjects
biology ,Agaricus ,Hypholoma ,Botany ,Agaricaceae ,Agaricales ,Zoology ,Taxonomy (biology) ,Strophariaceae ,Subgenus ,Internal transcribed spacer ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
Hypholoma cinnabarinum (Strophariaceae, Agaricales), a species described from eastern China, was revisited based on new collections from the south of China, from which comprehensive descriptions, color photos and line drawings were obtained. In addition to morphological data, a phylogenetic analysis based on the nuclear ribosomal internal transcribed spacer region was also carried out, leading to the conclusion that H. cinnabarinum is a member of Agaricus subgenus Lanagaricus section Trisulphurati (Agaricaceae, Agaricales).
- Published
- 2014
34. The genus Pulveroboletus (Boletaceae, Boletales) in China
- Author
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Yan-Chun Li, Nian-Kai Zeng, Zhi-Qun Liang, Li-Ping Tang, and Zhu L. Yang
- Subjects
0301 basic medicine ,Bolete ,Systematics ,China ,Physiology ,Zoology ,Biology ,Disjunct ,DNA, Ribosomal ,03 medical and health sciences ,Peptide Elongation Factor 1 ,Boletaceae ,RNA, Ribosomal, 28S ,Genetics ,Cluster Analysis ,DNA, Fungal ,Molecular Biology ,Ecology, Evolution, Behavior and Systematics ,Phylogeny ,Microscopy ,Phylogenetic tree ,Boletales ,Basidiomycota ,Cell Biology ,General Medicine ,Sequence Analysis, DNA ,030108 mycology & parasitology ,biology.organism_classification ,RNA, Ribosomal, 5.8S ,Taxon ,Taxonomy (biology) - Abstract
Species of Pulveroboletus (Boletaceae, Boletales) in China are investigated on the basis of morphology and molecular phylogenetic analyses of DNA sequences from nuc rDNA region encompassing the internal transcribed spacers 1 and 2, along with the 5.8S rDNA (ITS) and nuc 28S rDNA D1-D2 domains (28S) and sequences from the translation elongation factor 1-α gene (TEF1). Nine species are recognized in the country, three of them are described as new: P. flaviscabrosus, P. rubroscabrosus, and P. subrufus, five of them are previous described taxa: P. brunneopunctatus, P. brunneoscabrosus, P. macrosporus, P. reticulopileus, and P. sinensis, the remaining one is tentatively named P. cf. ridleyi, which will be further studied in the future. A key to the Chinese taxa of the genus is provided. Unexpectedly, the current study did not identify disjunct populations of Pulveroboletus species in East Asia and North/Central America.
- Published
- 2017
35. Boletus orientialbus, a new species with white basidioma from subtropical China
- Author
-
Zhu L. Yang, Nian-Kai Zeng, and Zhi-Qun Liang
- Subjects
Bolete ,Reticulate ,Mycorrhizal fungi ,Botany ,Boletus orientialbus ,Basidiocarp ,Taxonomy (biology) ,Subtropics ,Biology ,Ecology, Evolution, Behavior and Systematics ,Subtropical china - Abstract
Boletus orientialbus is described as a new species from Fujian Province, a subtropical region of China. It is morphologically characterized by its white basidioma with a white and unchanging context, white pores becoming yellow with age, a reticulate stipe, and ellipsoid to elongate basidiospores. A detailed description, color photos of fresh basidiomata, and a line-drawing of microscopic features are presented. (C) 2013 The Mycological Society of Japan. Published by Elsevier B. V. All rights reserved.
- Published
- 2014
36. The Biobleaching Effects of Xylanase from Streptomyces griseorubens LH-3 on Bagasse Pulp
- Author
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Shi Hai Huang, Gui Guang Chen, Xian Bo Cheng, and Zhi Qun Liang
- Subjects
Pulp (paper) ,Bagasse pulp ,General Medicine ,engineering.material ,Kappa number ,Pulp and paper industry ,stomatognathic diseases ,chemistry.chemical_compound ,stomatognathic system ,chemistry ,engineering ,Xylanase ,Hydrogen peroxide ,Streptomyces griseorubens - Abstract
In this work, the S. griseorubens LH-3 crude xylanase was used to treat bagasse pulp, and the release of chromophores was the highest at the dosage of 30 IU g1 dry pulp. Pulps, untreated and treated with crude xylanase were bleached with hydrogen peroxide. Biobleaching of bagasse pulp with this enzyme increased the brightness of the pulp by 8.5% and reduced the Kappa number by 15.3% compared with the untreated group.This crude xylanase has promising potential for industrial applications.
- Published
- 2014
37. Aldose Reductase from Porcine Liver Metabolizing 3-Deoxyglucosone, a Maillard Reaction Intermediate
- Author
-
Zhi-Qun Liang, Hiromichi Kato, and Fumitaka Hayase
- Subjects
chemistry.chemical_classification ,Aldose reductase ,Chromatography ,biology ,Chemistry ,Organic Chemistry ,Methylglyoxal ,Substrate (chemistry) ,Fructose ,General Medicine ,Applied Microbiology and Biotechnology ,Biochemistry ,Enzyme assay ,Analytical Chemistry ,chemistry.chemical_compound ,Enzyme ,Sephadex ,Glyceraldehyde ,biology.protein ,Molecular Biology ,Biotechnology - Abstract
An enzyme which catalyzes the NADPH-dependent reduction of 3-deoxyglucosone (3DG) was isolated and purified from porcine liver by ammonium sulfate fractionation, and DEAE-cellulose, hydroxyapatite, Sephadex G-100, Blue Sepharose CL-6B, and Sephadex G-100 column chromatographies. The pH for optimum enzyme activity was 6.5. 3DG was a good substrate, and glucose and fructose could also be reduced at a significant rate. The Km values for 3DG, methylglyoxal and glyceraldehyde were 2.5, 1.9, and 4.9 mM, respectively. The molecular mass of the enzyme was estimated to be 67, 000, and the enzyme is proposed to be a dimer composed of identical subunits. The activity of the enzyme was completely inhibited by p-chloromercuribenzoate, and the enzyme is estimated to be an aldose reductase.
- Published
- 2016
38. Species clarification of the locally famous mushroom Suillus placidus from the south of China with description of S. huapi sp. nov
- Author
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Nian-Kai Zeng, Zhi-Qun Liang, Ming-Sheng Su, Rou Xue, Deng Hong, Hui Chai, and Yong Wang
- Subjects
0301 basic medicine ,Bolete ,Mushroom ,Suillus ,Plant Science ,030108 mycology & parasitology ,Biology ,biology.organism_classification ,03 medical and health sciences ,Botany ,Molecular phylogenetics ,Pileipellis ,Pileus ,Taxonomy (biology) ,Internal transcribed spacer ,Ecology, Evolution, Behavior and Systematics - Abstract
Collections identified as “S. placidus” from the south of China, a subtropical/tropical region, were investigated using morphology and phylogenetic analyses of DNA sequences from nuc rDNA internal transcribed spacer (ITS). The results indicated that these specimens from subtropical/tropical China are not true S. placidus but represent a new species. Suillus huapi sp. nov. is characterized by a yellowish white to grayish yellow pileus when young, brown to dark brown when old, surface of pores and stipe usually beaded with droplets of milky liquid when young, a stipe without obvious granules, a pileipellis as an ixocutis, and an association with two-needled pines including P. caribaea, P. massoniana and P. yunnanensis.
- Published
- 2018
39. Retiboletus nigrogriseus and Tengioboletus fujianensis, two new boletes from the south of China
- Author
-
Shuai Jiang, Hui Chai, Rou Xue, Nian-Kai Zeng, Zhi-Qun Liang, Deng Hong, and Yong Wang
- Subjects
0301 basic medicine ,Bolete ,Hypha ,Plant Science ,030108 mycology & parasitology ,Biology ,03 medical and health sciences ,Reticulate ,Botany ,Basidiocarp ,Pileipellis ,Pileus ,Hymenophore ,Ecology, Evolution, Behavior and Systematics ,Mycelium - Abstract
Two new boletes, viz. Retiboletus nigrogriseus and Tengioboletus fujianensis are described based on morphological and molecular evidence. Retiboletus nigrogriseus is characterized by a black pileus when young, gray when old, context and hymenophore staining brownish to fuliginous when injured, black, reticulate stipe with a white basal mycelium, and a subcutis pileipellis composed of uninflated hyphae with cystidioid terminal cells; T. fujianensis is characterized by a large-sized basidioma, brown to reddish brown pileus, reticulate stipe, and a trichodermal pileipellis composed of uninflated hyphae with cystidioid terminal cells. A detailed description, color photos of fresh basidiomata and line drawings of microstructures of the two new boletes are presented.
- Published
- 2018
40. Lanmaoa rubriceps, a new bolete from tropical China
- Author
-
Nian-Kai Zeng, Zhi-Qun Liang, Shuai Jiang, Xun-Long Fu, and Hui Chai
- Subjects
0301 basic medicine ,Bolete ,biology ,Boletales ,Plant Science ,030108 mycology & parasitology ,biology.organism_classification ,03 medical and health sciences ,Genus ,Boletaceae ,Botany ,Molecular phylogenetics ,Pileipellis ,Hymenophore ,Internal transcribed spacer ,Ecology, Evolution, Behavior and Systematics - Abstract
Lanmaoa rubriceps (Boletaceae, Boletales) is described as a new species from Hainan Province, a tropical region of China. It is morphologically characterized by a red, crimson to orange-red pileus, a hymenophore with stuffed pores when young, pores staining blue and then changing to red-brown when injured, stipe surface staining blue when injured, and a trichodermal pileipellis with uninflated hyphae. Phylogenetic analyses of DNA sequences from part of the 28S gene, the nuc rDNA internal transcribed spacer (ITS) region, and part of the translation elongation factor 1-α gene ( tef 1 - α) also confirmed that L. rubriceps forms an independent lineage within Lanmaoa . Consequently, a detailed description, color photos of fresh basidiomata and line-drawings of microstructures are presented. It’s worth noting that L. rubriceps falls into the genus Lanmaoa phylogenetically but morphological features of the new species match the concept of the genus Cyanoboletus . The reason for the incongruence of molecular and morphological results is that the two most closely related genera share overlapping morphological features and the most important diagnostic feature of Lanmaoa is not constant. In light of these facts, lumping of Lanmaoa and Cyanoboletus into a single genus seems justified.
- Published
- 2018
41. Tylopilus callainus, a new species with a sea-green color change of hymenophore and context from the south of China
- Author
-
Nian-Kai Zeng, Zhi-Qun Liang, Shuai Jiang, Deng Hong, and Ming-Sheng Su
- Subjects
0301 basic medicine ,Bolete ,biology ,Boletales ,Plant Science ,030108 mycology & parasitology ,biology.organism_classification ,03 medical and health sciences ,Tylopilus ,Boletaceae ,Botany ,Pileipellis ,Hymenophore ,Pileus ,Internal transcribed spacer ,Ecology, Evolution, Behavior and Systematics - Abstract
Tylopilus callainus (Boletaceae, Boletales) is described as a new species from the south of China. It is morphologically characterized by a brown pileus tinged with sea-green, a sea-green color change of hymenophore and context when injured, a stipe with sea-green color on the upper part, and a trichodermal pileipellis with slightly inflated hyphae. Phylogenetic analyses of DNA sequences from partial 28S regions, the nuc rDNA internal transcribed spacer (ITS) and the translation elongation factor 1-α gene (TEF1) also confirm that T. callainus forms an independent lineage within Tylopilus s. str. Consequently, a detailed description, color photos of fresh basidiomata and line-drawings of microstructures are presented.
- Published
- 2018
42. The genus Retiboletus in China
- Author
-
Nian-Kai Zeng, Zhi-Qun Liang, Gang Wu, Yan-Chun Li, and Zhu L. Yang
- Subjects
0301 basic medicine ,Bolete ,Systematics ,China ,Physiology ,03 medical and health sciences ,Species Specificity ,Boletaceae ,Genetics ,Fruiting Bodies, Fungal ,Internal transcribed spacer ,Molecular Biology ,Ecology, Evolution, Behavior and Systematics ,Phylogeny ,Phylogenetic tree ,biology ,Boletales ,Basidiomycota ,Cell Biology ,General Medicine ,030108 mycology & parasitology ,biology.organism_classification ,030104 developmental biology ,Taxon ,Evolutionary biology ,Taxonomy (biology) - Abstract
Species of the genus Retiboletus (Boletaceae, Boletales) in China are investigated based on morphology and phylogenetic analyses of DNA sequences from nuc rDNA internal transcribed spacer (ITS) and partial 28S regions and sequences from the translation elongation factor 1-a gene (tef1a). Six lineages are recovered among the collections studied. Five of these are documented and presented in the present paper, including three new species and two new combinations. The remaining species is not described due to the paucity of material. The specimens from China identified as "R. ornatipes" or "R. retipes" are in fact R. sinensis or R. kauffmanii, those labeled "R. griseus" are either R. fuscus or R. pseudogriseus A key to all known taxa of the genus is provided. Phylogenetic relationships of taxa within Retiboletus are partially resolved. A preliminary biogeographical analysis shows that allied species of Retiboletus between eastern Asia and North/Central America are common but there are no Retiboletus species common to both continents. Species of Retiboletus in Japan and southern China are conspecific or closely related.
- Published
- 2015
43. A geographical extension of the North American genus Bothia (Boletaceae, Boletales) to East Asia with a new species B. fujianensis from China
- Author
-
Ming-Shen Su, Zhu L. Yang, Nian-Kai Zeng, and Zhi-Qun Liang
- Subjects
Bolete ,Boletales ,Boletaceae ,Botany ,Basidiocarp ,Taxonomy (biology) ,Hymenophore ,Internal transcribed spacer ,Biology ,Decurrent ,biology.organism_classification ,Agricultural and Biological Sciences (miscellaneous) ,Ecology, Evolution, Behavior and Systematics - Abstract
Bothia fujianensis is described as a new species from Fujian Province, a subtropical region of China. It is morphologically characterized by its brown to pale reddish brown basidiomata, pale brown hymenophore, adnate to slightly decurrent, with subreticulations to ridges at the apex of the stipe, relatively longer pleurocystidia, and clavate, subclavate or ventricose cheilocystidia. Molecular phylogenetic analyses using the large subunit nuclear ribosomal RNA loci, DNA nucleotide sequences of the internal transcribed spacer region, and the translation elongation factor 1 alpha also confirmed that B. fujianensis is distinct from B. castanella. The discovery of B. fujianensis in China indicates that Bothia has a much wider geographical distribution range occurring in East Asia and in North America.
- Published
- 2014
44. The genus Xanthoconium (Boletaceae, Boletales) in tropical China
- Author
-
Shuai Jiang, Zheng-Kun Ye, Hui Chai, Nian-Kai Zeng, and Zhi-Qun Liang
- Subjects
0301 basic medicine ,Bolete ,Boletales ,Zoology ,Plant Science ,030108 mycology & parasitology ,Biology ,biology.organism_classification ,03 medical and health sciences ,Xanthoconium ,Boletaceae ,Botany ,Pileipellis ,Pileus ,Hymenophore ,Hymenium ,Ecology, Evolution, Behavior and Systematics - Abstract
The collections of Xanthoconium from tropical China are investigated on the basis of morphology and molecular phylogenetic analyses of DNA sequences from the nuc 28S rDNA D1-D2 domains (28S), the translation elongation factor 1-α gene (TEF1) and RNA polymerase II second largest subunit gene (RPB2). Two species are recognized in the region, one is the previously described taxon: X. sinensis, the other is described as new: X. fusciceps. Xanthoconium fusciceps is morphologically characterized by a dark brown pileus with a rugulose or pitted surface, non-staining hymenophore and context, golden yellow basidiospores, cystidia with pale yellowish brown, yellowish brown to golden brown pigments, and uninflated hyphae in the pileipellis. Detailed descriptions, color photos of fresh basidiomata and line-drawings of microstructures of the two taxa are presented.
- Published
- 2017
45. Butyriboletus hainanensis (Boletaceae, Boletales), a new species from tropical China
- Author
-
Ming-Shen Su, Shuai Jiang, Dong-Yu An, Nian-Kai Zeng, and Zhi-Qun Liang
- Subjects
0301 basic medicine ,Bolete ,Butyriboletus ,food.ingredient ,biology ,Boletales ,Plant Science ,030108 mycology & parasitology ,biology.organism_classification ,03 medical and health sciences ,food ,Boletaceae ,Botany ,Basidiocarp ,Pileipellis ,Pileus ,Hymenophore ,Ecology, Evolution, Behavior and Systematics - Abstract
Butyriboletus hainanensis (Boletaceae, Boletales) is described as a new species from Hainan Province, a tropical region of China. It is morphologically characterized by a large, brown pileus with thick context and thin hymenophore, a blue-red-black color change of hymenophore and context, a yellow to brownish red stipe with faint reticulations, and an interwoven trichodermal pileipellis. Phylogenetic analyses of DNA sequences from partial 28S regions, the translation elongation factor 1-α gene (tef1α) and RNA polymerase II second largest subunit gene (rpb2) also confirm that B. hainanensis forms an independent lineage within Butyriboletus. Consequently, a description, color photos of fresh basidiomata and line-drawings of microstructures are presented.
- Published
- 2016
46. Izolacija kvasaca iz tla i ispitivanje njihove sposobnosti proizvodnje lipida
- Author
-
Li-Xia Pan, Deng-Feng Yang, Li Shao, Wei Li, Gui-Guang Chen, and Zhi-Qun Liang
- Subjects
izolacija i identifikacija kvasaca ,ksiloza ,glicerol ,biodizel ,zamjena za kakao maslac ,food and beverages ,isolation and identification of oleaginous yeast ,xylose ,glycerol ,biodiesel ,cocoa butter substitute - Abstract
D-xylose is one of the most abundant pentose sugars in nature. To isolate oleaginous yeasts that can utilize xylose from diverse soil samples, soils from a litchi orchard, longan orchard, carambola orchard, and woods were collected, yeasts were isolated by the glycerol enrichment and their xylose-assimilating capacities were measured. A subset of these isolates was grown in nitrogen-limited media and then screened for potential oleaginous yeasts by the Sudan Black B staining, after which their lipid-producing capacities were studied. There were 13 strains of oleaginous yeasts identified, and a rapid microbiological assay was provided to exploit microbial lipids that may one day be used as biodiesels or cocoa butter substitute., D-ksiloza je jedan od najzastupljenijih pentoznih šećera u prirodi. Da bi se izdvojili kvasci koji za rast mogu koristiti ksilozu iz tla, sakupljeni su uzorci tla i drveta iz voćnjaka tropskih vrsta (liči, karambola i longan). Obogaćivanjem uzoraka glukozom kvasci su zatim izolirani i ispitana je njihova sposobnost asimilacije ksiloze. Podskupina izoliranih kvasaca uzgojena je u podlozi s ograničenom količinom dušika, a bojenjem bojom Sudan Black B izdvojeni su ciljani kvasci, nakon čega je istražena njihova sposobnost proizvodnje lipida. Izdvojeno je 13 sojeva kvasaca, pa je brzim mikrobiološkim testom ispitana njihova sposobnost proizvodnje lipida koji bi se mogli upotrijebiti kao zamjena za biodizel ili kakao maslac.
- Published
- 2009
47. Purification and characterization of NADPH-dependent 2-oxoaldehyde reductase from porcine liver. A self-defence enzyme preventing the advanced stage of the Maillard reaction
- Author
-
Zhi-Qun Liang, Hiromichi Kato, and Fumitaka Hayase
- Subjects
Hot Temperature ,Magnetic Resonance Spectroscopy ,Swine ,Reductase ,Biochemistry ,Chromatography, DEAE-Cellulose ,symbols.namesake ,chemistry.chemical_compound ,Porcine liver ,Animals ,Amino Acids ,Chromatography, High Pressure Liquid ,chemistry.chemical_classification ,Molecular mass ,biology ,Chemistry ,Advanced stage ,Methylglyoxal ,Hydrogen-Ion Concentration ,Enzyme assay ,Maillard Reaction ,Alcohol Oxidoreductases ,Kinetics ,Maillard reaction ,Enzyme ,Liver ,symbols ,biology.protein ,Electrophoresis, Polyacrylamide Gel - Abstract
An enzyme which catalyzes the reduction of 3-deoxyglucosone to 3-deoxyfructose and methylglyoxal to acetol, was isolated and purified from porcine liver. 2-Oxoaldehyde compounds were found to be especially good substrates and monocarbonyl compounds were poor substrates for this reductase. The optimum pH of the enzyme activity was 6.5. The Km for 3-deoxyglucosone and methylglyoxal were 2.1 mM and 3.3 mM, respectively. The enzyme consisted of a single polypeptide chain with a molecular mass of 38 kDa. The activity of the enzyme was completely inhibited by p-chloromercuribenzoate. The enzyme inhibited the advanced stage of the Maillard reaction.
- Published
- 1991
48. Proizvodnja polinezasićenih masnih kiselina s pomoću plijesni Mucor recurvus sp. upotrebom melase šećerne trske kao izvora ugljika
- Author
-
Nan Li, Zhi-Nian Deng, Yong-Ling Qin, Chun-Lan Chen, and Zhi-Qun Liang
- Subjects
Mucor recurvus sp ,polinezasićene masne kiseline ,melasa šećerne trske ,fermentacija ,uvjeti uzgoja ,analiza masnih kiselina ,food and beverages ,lipids (amino acids, peptides, and proteins) ,polyunsaturated fatty acids ,sugarcane molasses ,fermentation ,cultivation condition ,fatty acid analysis - Abstract
Sugarcane molasses is rich in nutriments and vitamins. It may be used as the carbon source for the production of polyunsaturated fatty acids (PUFA) by Mucor recurvus sp. Using sugarcane molasses, the effects of fermentation parameters and media components on polyunsaturated fatty acid production through both linear and orthogonal array experiments were investigated. The best fermentation conditions for PUFA production were found as follows: 15 % sugarcane molasses, pH=6.0, 28 °C, 5 days, 160 rpm. It was also found that molasses and urea enhanced PUFA production with the optimal carbon to nitrogen (C/N) ratio of 35. Under the most favourable conditions, the total lipid content at 7.13 g/L and PUFA up to 5.74 g/L including (0.82±0.05) g/L of linolenic acid (LA), (1.35±0.02) g/L of γ-linolenic acid (GLA), (0.17±0.06) g/L of α-linolenic acid (ALA), (0.57±0.06) g/L of arachidonic acid (ARA), (0.46±0.07) g/L of eicosapentaenoic acid (EPA) and (0.34±0.08) g/L of docosahexaenoic acid (DHA) were obtained. Our study suggests that sugarcane molasses is a superior alternative carbon source for industrial PUFA production., Melasa šećerne trske je bogata hranjivim tvarima i vitaminima. Upotrebljava se kao izvor ugljika za proizvodnju polinezasićenih masnih kiselina s pomoću plijesni Mucor recurvus sp. Linearnom i ortogonalnom metodom istražen je utjecaj uvjeta fermentacije i sastojaka podloge, uz dodatak melase šećerne trske, na proizvodnju polinezasićenih masnih kiselina. Najbolji uvjeti fermentacije za proizvodnju polinezasićenih masnih kiselina bili su: 15 % melase šećerne trske; pH=6,0; 28 °C; 5 dana i 160 rpm. Također je utvrđeno da dodatak melase i uree povećava proizvodnju pri optimalnom omjeru ugljika i dušika C/N=35. Pri optimalnim uvjetima proizvedeno je ukupno 7,13 g/L lipida i 5,74 g/L polinezasićenih masnih kiselina, od toga (0,82±0,05) g/L linolenske kiseline, (1,35±0,02) g/L γ-linolenske kiseline, (0,17±0,06) g/L α-linolenske kiseline, (0,57±0,06) g/L arahidonske kiseline, (0,46±0,07) g/L eikosapentenoične kiseline i (0,34±0,08) g/L dokosaheksaenoične kiseline. Ovo je istraživanje pokazalo da je melasa šećerne trske najbolji alternativni izvor ugljika za industrijsku proizvodnju polinezasićenih masnih kiselina.
- Published
- 2008
49. Purification and Characterization of NADPH-dependent 2-Oxoaldehyde Reductase from Parsley
- Author
-
Fumitaka Hayase, Hiromichi Kato, Zhi Qun Liang, and Toshihide Nishimura
- Subjects
chemistry.chemical_classification ,biology ,Chemistry ,Dimer ,Kinetics ,Methylglyoxal ,Reductase ,Enzyme assay ,General Biochemistry, Genetics and Molecular Biology ,Catalysis ,Maillard reaction ,symbols.namesake ,chemistry.chemical_compound ,Enzyme ,Biochemistry ,symbols ,biology.protein ,General Agricultural and Biological Sciences - Abstract
A NADPH-dependent 2-oxoaldehyde reductase, which catalyzes the reduction of 3-deoxyglucosone to 3-deoxyfructose and reduction of methylglyoxal to acetol, was isolated and purified from parsley leaves. 2-Oxoaldehyde compounds were found to be specially good substrates and monocarbonyl compounds were poor substrates for this reductase. The optimum pH of the enzyme activity was 7.0–7.5. The Km for 3-deoxyglucosone and methylglyoxal were 15 mm and 13 mm, respectively. The molecular weight of the enzyme was estimated to be 67,000 and the enzyme is proposed to be a dimer composed of identical subunits (MW = 35,000). The enzyme activity was completely inhibited by p-chloromercuribenzoate. The reaction catalyzed by the enzyme was virtually irreversible. The changes in methylglyoxal and NADPH by the enzyme were stoichiometrically equivalent.
- Published
- 1990
50. <div class='Section1'>A new species and a new combination in the genus Aureoboletus (Boletales, Boletaceae) from southern China</div>
- Author
-
Zhi-Qun Liang, Ming Zhang, and Nian-Kai Zeng
- Subjects
Bolete ,biology ,Boletales ,Zoology ,Plant Science ,biology.organism_classification ,Taxon ,Boletaceae ,Evolutionary biology ,Molecular phylogenetics ,Taxonomy (biology) ,Aureoboletus ,Boletellus ,Ecology, Evolution, Behavior and Systematics - Abstract
Two lineages of Aureoboletus (Boletales, Boletaceae) from southern China were revealed by using molecular data based on combined dataset of the nuclear ribosomal large subunit RNA (nrLSU), the translation elongation factor apha-1 (tef1-a) and the largest subunit of RNA polymerase II (rpb1). One of them corresponds with the previous morphology-based taxon, viz. Boletellus longicollis, another one is different from those taxa described based on morphological features. And, thus, Auroboletus clavatus sp. nov. and A. longicollis comb. nov. were proposed. A detailed description, colour photos of fresh basidiomata, and a line-drawing of microscopic features of the two taxa were provided.
- Published
- 2015
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