Arabidopsis Duodecuple Mutant of PYL ABA Receptors Reveals PYL Repression of ABA-Independent SnRK2 Activity

doi:10.1016/j.celrep.2018.05.044

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	Arabidopsis Duodecuple Mutant of PYL ABA Receptors Reveals PYL Repression of ABA-Independent SnRK2 Activity
	Wan, Yizhen 5; Wang, Zegang 5; Hou, Yueh-Ju 5; Liu, Wenshan 5; Xie, Shaojun 5; Lu, Tianjiao 2,3,4; Xue, Liang 1; Liu, Yajie 2,3,4; Macho, Alberto P.2,3; Tao, W. Andy 1
刊名	CELL REPORTS
	2018-06-12
卷号	23 期号:11 页码:3340-+
ISSN号	2211-1247
DOI	10.1016/j.celrep.2018.05.044
英文摘要	Abscisic acid (ABA) is an important phytohormone controlling responses to abiotic stresses and is sensed by proteins from the PYR/PYL/RCAR family. To explore the genetic contribution of PYLs toward ABA-dependent and ABA-independent processes, we generated and characterized high-order Arabidopsis mutants with mutations in the PYL family. We obtained a pyl quattuordecuple mutant and found that it was severely impaired in growth and failed to produce seeds. Thus, we carried out a detailed characterization of a pyl duodecuple mutant, pyr1pyl1/2/3/4/5/7/8/9/10/11/12. The duodecuple mutant was extremely insensitive to ABA effects on seed germination, seedling growth, stomatal closure, leaf senescence, and gene expression. The activation of SnRK2 protein kinases by ABA was blocked in the duodecuple mutant, but, unexpectedly, osmotic stress activation of SnRK2s was enhanced. Our results demonstrate an important role of basal ABA signaling in growth, senescence, and abscission and reveal that PYLs antagonize ABA-independent activation of SnRK2s by osmotic stress.
资助项目	Chinese Academy of Sciences ; NIH[R01GM059138]
WOS研究方向	Cell Biology
语种	英语
出版者	CELL PRESS
WOS记录号	WOS:000435196500019
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/5440]
专题	中国科学院武汉植物园
通讯作者	Zhu, Jian-Kang; Zhao, Yang
作者单位	1.Purdue Univ, Dept Biochem, W Lafayette, IN 47907 USA 2.Chinese Acad Sci, Shanghai Ctr Plant Stress Biol, Shanghai 200032, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Mol Plant Sci, Shanghai 200032, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Purdue Univ, Dept Hort & Landscape Architecture, W Lafayette, IN 47907 USA 6.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Shaanxi, Peoples R China 7.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Wan, Yizhen,Wang, Zegang,Hou, Yueh-Ju,et al. Arabidopsis Duodecuple Mutant of PYL ABA Receptors Reveals PYL Repression of ABA-Independent SnRK2 Activity[J]. CELL REPORTS,2018,23(11):3340-+.
APA	Wan, Yizhen.,Wang, Zegang.,Hou, Yueh-Ju.,Liu, Wenshan.,Xie, Shaojun.,...&Hu, Tao.(2018).Arabidopsis Duodecuple Mutant of PYL ABA Receptors Reveals PYL Repression of ABA-Independent SnRK2 Activity.CELL REPORTS,23(11),3340-+.
MLA	Wan, Yizhen,et al."Arabidopsis Duodecuple Mutant of PYL ABA Receptors Reveals PYL Repression of ABA-Independent SnRK2 Activity".CELL REPORTS 23.11(2018):3340-+.