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Glutamate Receptor Homolog3.4 is Involved in Regulation o Seed Germination Under Salt Stress in Arabidopsis

文献类型：期刊论文

作者Cheng, Yao; Zhang, Xiuxiu; Sun, Tianyang; Tian, Qiuying; Zhang, Wen-Hao
刊名PLANT AND CELL PHYSIOLOGY
出版日期2018
卷号59期号:5页码:978-988
关键词Arabidopsis thaliana AtGLR3.4 SOS pathway Na accumulation ABA Salt stress Seed germination
ISSN号0032-0781
DOI10.1093/pcp/pcy034
文献子类Article
英文摘要Seed germination is sensitive to salt stress. ABA and Ca2+ are involved in the regulation of seed germination under salt stress. Ca2+ influx mediated by glutamate receptors (GLRs) plays important roles in many physiological processes in plants. Here, we investigated the correlation of GLRs, Ca2+ and ABA during seed germination in response to salt stress by using Arabidopsis thaliana wild-type and T-DNA insertion knockout mutants of glutamate receptor homolog3.4. We demonstrated that atglr3.4-1 and atglr3.4-2 mutants were more sensitive to NaCl during seed germination and post-germination growth than wild-type plants. Treatments of wild-type seedlings with NaCI evoked a marked elevation in cytosolic Ca2+ activity ([Ca2+](cyt)), and the elevation was inhibited by antagonists of GLRs, while the NaCI-induced elevation in ([Ca2+](cyt)) was impaired in atglr3.4-1 and atglr3.4-2 mutants. Moreover, the mutants exhibited a lower expression of 5053, SOS2 and SOS1, and greater accumulation of Na+ than wild-type seeds in the presence of NaCI. Mutation of AtGLR3.4 rendered the mutants more sensitive to ABA, while overexpression of AtGLR3.4 made the transgenic lines more tolerant to ABA in terms of seed germination. However, there was no difference in ABA content between atglr3.4 mutants and wild-type seeds, accompanied by lower expression of AB13 and AB14 in atglr3.4 mutants when challenged with NaCI. These results demonstrate that AtGLR3.4-mediated Ca2+ influx may be involved in the regulation of seed germination under salt stress by modulating Na+ accumulation through the SOS pathway.
学科主题Plant Sciences ; Cell Biology
出版地OXFORD
电子版国际标准刊号1471-9053
WOS关键词ABSCISIC-ACID ; SIGNAL-TRANSDUCTION ; GENE-EXPRESSION ; CALCIUM ; DORMANCY ; TOLERANCE ; INTERACTS ; SALINITY ; THALIANA ; CHANNELS
语种英语
WOS记录号WOS:000432291000008
出版者OXFORD UNIV PRESS
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31301832, 31470466]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/20406]  
专题植被与环境变化国家重点实验室
作者单位1.[Cheng, Yao
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.Tian, Qiuying
4.Sun, Tianyang
5.Zhang, Xiuxiu
6.Chinese Acad Sci, Beijing Inst Life Sci, Res Network Global Change Biol, Beijing, Peoples R China
7.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Cheng, Yao,Zhang, Xiuxiu,Sun, Tianyang,et al. Glutamate Receptor Homolog3.4 is Involved in Regulation o Seed Germination Under Salt Stress in Arabidopsis[J]. PLANT AND CELL PHYSIOLOGY,2018,59(5):978-988.
APA Cheng, Yao,Zhang, Xiuxiu,Sun, Tianyang,Tian, Qiuying,&Zhang, Wen-Hao.(2018).Glutamate Receptor Homolog3.4 is Involved in Regulation o Seed Germination Under Salt Stress in Arabidopsis.PLANT AND CELL PHYSIOLOGY,59(5),978-988.
MLA Cheng, Yao,et al."Glutamate Receptor Homolog3.4 is Involved in Regulation o Seed Germination Under Salt Stress in Arabidopsis".PLANT AND CELL PHYSIOLOGY 59.5(2018):978-988.

入库方式： OAI收割

来源：植物研究所

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