Functional FRIGIDA allele enhances drought tolerance by regulating the P5CS1 pathway in Arabidopsis thaliana
Chen, Qian1; Zheng, Yan1,2; Luo, Landi4; Yang, Yongping1; Hu, Xiangyang3; Kong, Xiangxiang1
2018
发表期刊BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
ISSN0006-291X
卷号495期号:1页码:1102-1107
摘要Flowering at the right time is important for the reproductive success of plants and their response to environmental stress. In Arabidopsis, a major determinant of natural variation in flowering time is FRIGIDA (FRI). In the present study, we show that overexpression of the functional FRIGIDA gene in wild type Col background (ColFRI) positively enhances the drought tolerance by activating P5CS1 expression and promoting proline accumulation during water stress. Furthermore, no significant changes in FRI gene and protein expression levels were observed with drought treatment, whereas P5CS1 protein expression significantly increased. In contrast, vernalization treatment efficiently reduced P5CS1 expression levels and resulted in a decrease in drought tolerance in the ColFRI plants. The flc mutants with a functional FRI background also relieved FRI-mediated activation of P5CS1 during drought tolerance. Taken together, our findings reveal the novel function of FRI in enhancing drought resistance through its downstream P5CS1 pathway during water-deficit stress, which is dependent on its target, the FLC gene. (C) 2017 Elsevier Inc. All rights reserved.
关键词Frigida Drought Arabidopsis P5cs1 Vernalization
语种英语
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/60570
专题植物化学与西部植物资源持续利用国家重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shanghai Univ, Sch Life Sci, Plant Sci Ctr, Shanghai Key Lab Bioenergy Crops, Shanghai 200444, Peoples R China
4.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650504, Yunnan, Peoples R China
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Chen, Qian,Zheng, Yan,Luo, Landi,et al. Functional FRIGIDA allele enhances drought tolerance by regulating the P5CS1 pathway in Arabidopsis thaliana[J]. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS,2018,495(1):1102-1107.
APA Chen, Qian,Zheng, Yan,Luo, Landi,Yang, Yongping,Hu, Xiangyang,&Kong, Xiangxiang.(2018).Functional FRIGIDA allele enhances drought tolerance by regulating the P5CS1 pathway in Arabidopsis thaliana.BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS,495(1),1102-1107.
MLA Chen, Qian,et al."Functional FRIGIDA allele enhances drought tolerance by regulating the P5CS1 pathway in Arabidopsis thaliana".BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS 495.1(2018):1102-1107.
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