Determinants of timing and amplitude in the plant general stress response

被引:24
作者
Bjornson, Marta [1 ,2 ]
Dandekar, Abhaya [1 ]
Dehesh, Katayoon [2 ]
机构
[1] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA
[2] Univ Calif Davis, Dept Plant Biol, Davis, CA 95616 USA
基金
美国国家科学基金会;
关键词
Calcium; general stress response; mitogen-activated protein kinase; rapid stress response element; reactive oxygen species; nitric oxide; timing; ACTIVATED PROTEIN-KINASE; BINDING TRANSCRIPTION ACTIVATORS; OXIDATIVE BURST; SALICYLIC-ACID; ABSCISIC-ACID; PSEUDOMONAS-SYRINGAE; SIGNALING PATHWAYS; DISTINCT ROLES; NITRIC-OXIDE; GUARD-CELLS;
D O I
10.1111/jipb.12373
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
Plants have evolved intricate signaling cascades to rapidly and effectively respond to biotic and abiotic challenges. The precise timing of these responses enables optimal resource reallocation to maintain the balance between stress adaptation and growth. Thus, an in-depth understanding of the immediate and long-term mechanisms regulating resource allocation is critical in deciphering how plants withstand environmental challenges. To date however, understanding of this tradeoff has focused on the amplitude of long-term responses, rather than the timing of rapid stress responses. This review presents current knowledge on kinetics of secondary messengers involved in regulation of rapid and general stress responses, followed by rapid stress responsive transduction machinery, and finally the transcriptional response of a functional general stress responsive cis-element. Within this context we discuss the role of timing of initial peak activation and later oscillating peak responses, and explore hormonal and stress signaling crosstalk confounding greater understanding of these cascades.
引用
收藏
页码:119 / 126
页数:8
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