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

doi:10.1093/pcp/pcy034

	Glutamate Receptor Homolog3.4 is Involved in Regulation o Seed Germination Under Salt Stress in Arabidopsis
	Cheng, Yao ; Zhang, Xiuxiu ; Sun, Tianyang ; Tian, Qiuying ; Zhang, Wen-Hao
	2018
发表期刊	PLANT AND CELL PHYSIOLOGY
ISSN	0032-0781
卷号	59 期号:5 页码:978-988
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.
关键词	Arabidopsis thaliana AtGLR3.4 SOS pathway Na accumulation ABA Salt stress Seed germination
学科领域	Plant Sciences ; Cell Biology
DOI	10.1093/pcp/pcy034
收录类别	SCI
语种	英语
WOS关键词	ABSCISIC-ACID ; SIGNAL-TRANSDUCTION ; GENE-EXPRESSION ; CALCIUM ; DORMANCY ; TOLERANCE ; INTERACTS ; SALINITY ; THALIANA ; CHANNELS
WOS记录号	WOS:000432291000008
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1471-9053
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31301832, 31470466]
作者邮箱	tianqiuying@ibcas.ac.cn ; whzhang@ibcas.ac.cn
作品OA属性	Bronze
引用统计	被引频次：49[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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.Zhang, Xiuxiu 3.Sun, Tianyang 4.Tian, Qiuying 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 6.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Beijing Inst Life Sci, Res Network Global Change Biol, Beijing, 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.

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