Chilling susceptibility in mungbean varieties is associated with their differentially expressed genes

文化大學機構典藏 CCUR > 環境規劃暨生物資源學院 > 農學院 > 園藝暨生物技術學系 > 期刊論文 > Item 987654321/36027

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题名:	Chilling susceptibility in mungbean varieties is associated with their differentially expressed genes
作者:	Chen, LR (Chen, Li-Ru) Ko, CY (Ko, Chia-Yun) Folk, WR (Folk, William R.) Lin, TY (Lin, Tsai-Yun)
贡献者:	園生系
关键词:	Chilling regulated genes (CORS) Chilling tolerance DHN LTP PDF Vigna radiata
日期:	2017-01
上传时间:	2017-04-27 14:06:06 (UTC+8)
摘要:	Background: Mungbean (Vigna radiata L. Wilczek) is an economically important legume of high nutritional value, however, its cultivation is limited by susceptibility to chilling. Varieties NM94 and VC1973A, with differential susceptibility to stress, serve as good materials for uncovering how they differ in chilling tolerance. This study aimed to identify the ultrastructural, physiological and molecular changes to provide new insights on the differential susceptibility to chilling between varieties VC1973A and NM94. Results: Chilling stress caused a greater reduction in relative growth rate, a more significant decrease in maximum photochemical efficiency of PSII and DPPH scavenging activity and more-pronounced ultrastructural changes in VC1973A than in NM94 seedlings. Comparative analyses of transcriptional profiles in NM94 and VC1973A revealed that the higher expression of chilling regulated genes (CORs) in NM94. The transcript levels of lipid transfer protein (LTP), dehydrin (DHN) and plant defensin (PDF) in NM94 seedlings after 72 h at 4 degrees C was higher than that in its parental lines VC1973A, 6601 and VC2768A. Conclusions: Our results suggested that LTP, DHN and PDF may mediate chilling tolerance in NM94 seedlings.
關聯:	BOTANICAL STUDIES 卷: 58 文獻號碼: 7
显示于类别:	[園藝暨生物技術學系] 期刊論文

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