A mutation in Arabidopsis BSK5 encoding a brassinosteroid-signaling kinase protein affects responses to salinity and abscisic acid

被引：62

作者：

Li, Zhi-Yong ^{[1
,2
]}

Xu, Zhao-Shi ^{[1
]}

He, Guang-Yuan ^{[2
]}

Yang, Guang-Xiao ^{[2
]}

Chen, Ming ^{[1
]}

Li, Lian-Cheng ^{[1
]}

Ma, You-Zhi ^{[1
]}

机构：

[1] Chinese Acad Agr Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Key Lab Biol & Genet Improvement Triticeae Crops, Inst Crop Sci,Minist Agr, Beijing 100081, Peoples R China

[2] Huazhong Univ Sci & Technol, Genet Engn Int Cooperat Base Chinese Minist Sci &, Chinese Natl Ctr Plant Gene Res Wuhan HUST Part, Coll Life Sci & Technol, Wuhan 430074, Peoples R China

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 2012年 / 426卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Arabidopsis; Stress tolerance; ABA-dependent; Phytohormone; HETEROTRIMERIC G-PROTEIN; ABIOTIC STRESS; TOLERANCE; GIBBERELLINS; GERMINATION; THALIANA; ETHYLENE; DEFECTS; DROUGHT; GENE;

D O I：

10.1016/j.bbrc.2012.08.118

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

As the most recently characterized group of plant hormones, brassinosteroids (BR) are involved in a number of physiological responses. Although many key components of the BR signaling pathway have been isolated and characterized, there is little information on detailed characterization of brassinosteroid-signaling kinase (BSK) proteins. In this study, Arabidopsis BSK5 was isolated and functionally analyzed. BSK5 transcripts were detected in various tissues, and were induced by abiotic stresses including salt and drought, as well as phytohormones of BR and abscisic acid (ABA). Arabidopsis loss-of-function mutant bsk5 exhibited sensitivity to salinity and ABA. Mutations of the BSK5 gene also altered the expression of several stress-regulated genes. We suggest that BSK5 responds to other signals as well as BR. Crown Copyright (C) 2012 Published by Elsevier Inc. All rights reserved.

引用

页码：522 / 527

页数：6

共 29 条

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