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286 results on '"Jiang, Shenghui"'

14. Modeling the Impacts of Land Reclamation on Sediment Dynamics in a Semi-Enclosed Bay.

Author

Zhong, Yi, Du, Jun, Wang, Yongzhi, Li, Ping, Xu, Guoqiang, Miu, Hongbin, Zhang, Peiyu, Jiang, Shenghui, and Gao, Wei

Subjects
TIDAL currents, SUSPENDED sediments, RECLAMATION of land, THREE-dimensional modeling, ADVECTION
Abstract

Semi-enclosed bays are significantly influenced by the interactions between land and sea, as well as human activities. One notable human activity, land reclamation, impacts water exchange within these bays. However, the variability of sediment transport and cross-bay transport following reclamation remains poorly understood. This study aims to enhance the understanding of sediment dynamics and the responses of cross-bay transport to reclamation. A well-validated three-dimensional numerical model was developed in the Laizhou Bay (LB). Following reclamation, tidal currents suspended sediment concentration, and erosion increased seaward, while these factors decreased landward. In LB, surface and bottom subtidal currents flowed in opposite directions, with the direction of volume transport primarily determined by bottom currents. In the western LB, volume and sediment transport exhibited an anticyclonic pattern, with pronounced seasonal variations observed elsewhere. During summer, volume and sediment transport predominantly occurred from the northeast to the southwest. In winter, volume transport in northern LB was directed westward, while it was eastward in the southern part; sediment transport was primarily eastward. Advection played a significant role in sediment transport dynamics. The pathway of cross-bay sediment transport was primarily located in the central part of the bay. Notably, the cross-bay sediment transport flux in winter was approximately 3.5 times greater than in summer, with reclamation resulting in a reduction in cross-bay transport flux by about 22.17%. [ABSTRACT FROM AUTHOR]

Published
2024
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15. A Functional InDel in the WRKY10 Promoter Controls the Degree of Flesh Red Pigmentation in Apple.

Author

Wang, Nan, Liu, Wenjun, Mei, Zhuoxin, Zhang, Shuhui, Zou, Qi, Yu, Lei, Jiang, Shenghui, Fang, Hongcheng, Zhang, Zongying, Chen, Zijing, Wu, Shujing, Cheng, Lailiang, and Chen, Xuesen

Subjects
TRANSCRIPTION factors, COLOR of plants, PROMOTERS (Genetics), GENETIC transcription, PHENOTYPES, ANTHOCYANINS
Abstract

MYB transcription factors have been linked to anthocyanin synthesis and various color phenotypes in plants. In apple, MYB10 confers a red‐flesh phenotype due to a minisatellite insertion in its R6 promoter, but R6:MYB10 genotypes exhibit various degrees of red pigmentation in the flesh, suggesting the involvement of other genetic factors. Here, it is shown that MdWRKY10, a transcription factor identified via DNA pull‐down trapping, binds to the promoter of MdMYB10 and activates its transcription. MdWRKY10 specifically interacts with the WDR protein MdTTG1 to join the apple MYB‐bHLH‐WDR (MBW) complex, which significantly enhances its transcriptional activation activity. A 163‐bp InDel detected in the promoter region of the alleles of MdWRKY10 in a hybrid population of identical heterozygous genotypes regarding R6 by structural variation analysis, contains a typical W‐box element that MdWRKY10 binds to for transactivation. This leads to increased transcript levels of MdWRKY10 and MdMYB10 and enhanced anthocyanin synthesis in the flesh, largely accounting for the various degrees of flesh red pigmentation in the R6 background. These findings reveal a novel regulatory role of the WRKY‐containing protein complex in the formation of red flesh apple phenotypes and provide broader insights into the molecular mechanism governing anthocyanin synthesis in plants. [ABSTRACT FROM AUTHOR]

Published
2024
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41. MdCKS1 Expression Involved in Fruit Size in Apple Cultivar ‘Fuji’ and ‘Ralls’

Author

Jiang Shenghui, Jiang Yuanmao, Wang Nan, Zongying Zhang, Xuesen Chen, M. Cui, Chen Xuesen, Xiang Shen, J. Shu, Zhiquan Mao, and Q. Q. Jiao

Subjects
chemistry.chemical_classification, Malus, Cell number, food and beverages, Plant physiology, Plant Science, Biology, biology.organism_classification, Cell expansion, Horticulture, chemistry.chemical_compound, chemistry, Auxin, Callus, Cytokinin, Cultivar
Abstract

CKS (cyclin-dependent kinase subunit) is one of cell cycle genes, and cell cycle in apple (Malus × domestic Borkh.) fruit controlled cell number and fruit size. In order to explore CKS expression during the development of apple fruit size, the cultivar ‘Fuji’ and ‘Ralls’ whose fruit size had obvious difference were used for MdCKS1 gene cloning and expressing. In ‘Fuji’ and ‘Ralls’, the greatest growth rates of fruit size and weight occurred during 7–21 days after full bloom (DAFB), but in ‘Fuji’ during 21–35 DAFB the growth rates of fruit size and weight was still faster, and ‘Fuji’ remained much rapider growth rate of fruit size and weight than ‘Ralls’ within 7–35 DAFB, so the majority of cell production in ‘Ralls’ occurred between 7–21 DAFB and in ‘Fuji’ between 7–35 DAFB, and the biggest difference of fruit size and weight between ‘Fuji’ and ‘Ralls’ occurred at 35 DAFB. MdCKS1 sequence was identical with MdCKS1;1 (CO868566) and apple CKS1 (EB141951). MdCKS1 expression peak in ‘Fuji’ was two-fold higher than in ‘Ralls’; MdCKS1 expression peak in ‘Ralls’ occurred at 21 DAFB and in ‘Fuji’ at 35 DAFB which coincided respectively with rapid growth rate of early fruit. During 140–161 DAFB, ‘Fuji’ fruit had MdCKS1 expression peak again, but ‘Ralls’ not; ‘Fuji’ fruit size and weight had a larger extent of increase than ‘Ralls’, and the second significant difference of fruit size and weight between ‘Fuji’ and ‘Ralls’ occurred at 161 DAFB. In callus, MdCKS1 expression was much higher in ‘Fuji’ than in ‘Ralls’, up-regulated by auxin (NAA) or cytokinin (6-BA) or co-existence of them, and depressed by lower culture temperature. Altogether, ‘Fuji’ fruit had much rapider growth rate than ‘Ralls’ which resulted in significant difference of fruit size and weight between ‘Fuji’ and ‘Ralls’ respectively at 35 DAFB and 161 DAFB, and contributed to their fruit size difference; MdCKS1 expression in ‘Fuji’ fruit was much higher than in ‘Ralls’ both at early stage for fruit cell division and later stage for fruit cell expansion; MdCKS1 expression in callus was up-regulated by auxin or/and cytokinin. Hence, difference of fruit size between ‘Fuji’ and ‘Ralls’ was correlated with growth rate during fruit development, MdCKS1 expression correlated positively with growth rate and cell production of early fruit, and involved in fruit size which maybe was regulated by endogenous auxin or/and cytokine level of genotype.

Published
2021
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