Diverse roles of jasmonates and ethylene in abiotic stress tolerance

生物 非生物胁迫 适应(眼睛) 调解人 非生物成分 细胞生物学 转录因子 遗传学 基因 生态学 神经科学
作者
Kemal Kazan
出处
期刊:Trends in Plant Science [Elsevier]
卷期号:20 (4): 219-229 被引量:718
标识
DOI:10.1016/j.tplants.2015.02.001
摘要

•Enhancing the resilience of crops to abiotic stress factors will be increasingly important under climate change. •Jasmonates and ethylene are plant hormones primarily associated with plant defense. •Comparable and contrasting molecular mechanisms are employed by these phytohormones in abiotic stress tolerance. •Understanding jasmonate- and ethylene-mediated abiotic stress tolerance can provide new avenues for enhancing stress tolerance. Jasmonates (JAs) and ethylene (ET), often acting cooperatively, play essential roles in regulating plant defense against pests and pathogens. Recent research reviewed here has revealed mechanistic new insights into the mode of action of these hormones in plant abiotic stress tolerance. During cold stress, JAs and ET differentially regulate the C-repeat binding factor (CBF) pathway. Major JA and ET signaling hubs such as JAZ proteins, CTR1, MYC2, components of the mediator complex, EIN2, EIN3, and several members of the AP2/ERF transcription factor gene family all have complex regulatory roles during abiotic stress adaptation. Better understanding the roles of these phytohormones in plant abiotic stress tolerance will contribute to the development of crop plants tolerant to a wide range of stressful environments. Jasmonates (JAs) and ethylene (ET), often acting cooperatively, play essential roles in regulating plant defense against pests and pathogens. Recent research reviewed here has revealed mechanistic new insights into the mode of action of these hormones in plant abiotic stress tolerance. During cold stress, JAs and ET differentially regulate the C-repeat binding factor (CBF) pathway. Major JA and ET signaling hubs such as JAZ proteins, CTR1, MYC2, components of the mediator complex, EIN2, EIN3, and several members of the AP2/ERF transcription factor gene family all have complex regulatory roles during abiotic stress adaptation. Better understanding the roles of these phytohormones in plant abiotic stress tolerance will contribute to the development of crop plants tolerant to a wide range of stressful environments.
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