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6 results on '"XUE LI QIU"'

1. QTL mapping of physiological traits at the booting stage in rice under low temperature combined with nitrogen fertilization

Author

Shu Ming Yang, Fei Fei Zhang, Su Hua Zhang, Gui Yong Li, Li Qiong Zeng, Guan Suo Liu, Xiao Fen Yu, and Xue Li Qiu

Subjects
antioxidant enzymes, cold stress, japonica rice (oryza sativa l.), nitrogen, qtls, Plant culture, SB1-1110
Abstract

Further dissection of physiological molecular mechanisms is indispensable to alleviate rice yield losses resulting from cold injury. By using 105 near-isogenic lines (NILs) derived from a backcross between cv. Lijiangxintuanheigu (LTH) and cv. Towada, we detected quantitative trait loci (QTLs) for physiological traits of the rice flag leaf, based on polymorphic simple sequence repeat (SSR) markers, inclusive composite interval mapping (ICIM), mixed composite interval mapping (MCIM) approaches and phenotypic value subjected to combine with cold-water stress and three nitrogen application rates. By using ICIM, a total of 34 QTLs with additive effects (A-QTLs) were identified on chromosomes 1, 3, 4, 5, 6, 7 and 10, and the phenotypic variation (R2) explained by each QTL ranged from 8.46 to 29.14%. By using MCIM, 20 A-QTLs and 14 pairs of QTLs with epistatic × environment interaction effects (Epistatic QTLs) were detected, the contribution of environment interaction (H2AE) was 0.87 to 7.36%, while the contribution rates of E-QTL were from 0.97 to 3.58%. Fourteen A-QTLs were detected by ICIM and MCIM, which may serve as a basis for fine-mapping and candidate gene studies, and providing strategies for the development of cold-tolerant rice cultivars and nitrogen application to alleviate chilling stress.

Published
2019
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4. [Morphological observation on the adult worms of Taenia saginata in western China]

Author

Rong, Mou, Huai-En, Bao, Xue-Li, Qiu, Yan, Chen, Shu-Yuan, Lang, Jiang, Huang, Jian-Hua, Li, Wu-Jun, Zhu, Ke, Zhang, and Yan, Ling-Hu

Subjects
China, Cysticercosis, Animals, Humans, Taenia saginata, Parasite Egg Count, Taeniasis
Abstract

To investigate the morphological characteristics of the adult worms of Taenia saginata from four areas of Western China.42, 41, 7 and 18 integral worms of Taenia saginata were collected from Duyun and Congjiang of Guizhou Province, Wushi of Xinjiang, and Lhasa of Tibet respectively. The length of worms was measured and the segments were counted. The specimens of scolex, mature and gravid proglottids of the worms were stained, measured and photographed.The mean length of the worms from Duyun, Congjiang, Wushi and Lasa was (1.81+/-0.69) m, (3.84+/-1.32) m, (2.76+/-0.86) m and (3.72+/-1.12) m, and with (574.64+/-189.33), (913.84+/-317.41), (971.29+/-168.30) and (940.38+/-368.26) proglottids, respectively. The mean ratio of the distance between two lateral excretory vessels and the length of vitellarium of the mature proglottids was (1.71+/-0.13), (2.23+/-0.06), (2.03+/-0.21), (2.31+/-0.15) respectively. All the 3 parameters of the worms from Duyun were significantly less than those from other 3 areas (P0.05). Rudimentary rostellum was found obviously in 3 of 10 scolices of the worms from Duyun.The morphological characteristics of the adult worms from Duyun are similar to that of Taenia saginata asiatica, while those of the worms from Congjiang, Wushi and Lhasa are alike to those of Taenia saginata saginata.

Published
2007

5. [Epidemiological investigation of Taenia saginata asiatica in Duyun, Guizhou and detection of amino acids and elements of adult worms]

Author

Yan, Chen, Huai-en, Bao, Jin-fu, Li, Shu-yuan, Lang, Xue-li, Qiu, Jiang, Huang, Yuan-ming, Wu, and Chao-yun, Zhang

Subjects
Adult, Male, China, Taenia, Animals, Humans, Female, Amino Acids, Middle Aged, Taeniasis, Trace Elements
Abstract

To study epidemiological factors of taeniasis and to detect amino acid and element components of adult worms in Duyun of Guizhou Province.1. Traditional methods were used for epidemiological investigation. 2. Automatic amino acid analyzer and bioassay were applied for the detection.Among 70 persons with clinical symptoms, 25 patients (24 men and 1 woman) were found to have adult taenia worms in their faeces after taking Areca catechu L. and other drugs. Sixteen amino acids and 12 elements were determined in adult worms.Duyun area in Guizhou is a highly endemic area of taeniasis. The pathogenic parasite is identified as Taenia saginata asiatica. Its clinical symptoms are similar to that of Taenia saginata saginata.

Published
2004

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