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Trends Plant Sci. 2015 Apr;20(4):219-29. doi: 10.1016/j.tplants.2015.02.001. Epub 2015 Feb 24.

Diverse roles of jasmonates and ethylene in abiotic stress tolerance.

Author information

1
Commonwealth Scientific and Industrial Research Organization (CSIRO), Agriculture Flagship, Queensland Bioscience Precinct, Brisbane, Queensland, Australia; The Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Queensland Bioscience Precinct, Brisbane, Queensland, Australia. Electronic address: kemal.kazan@csiro.au.

Abstract

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.

KEYWORDS:

Arabidopsis; cold; drought; ethylene; jasmonate; rice; salt

PMID:
25731753
DOI:
10.1016/j.tplants.2015.02.001
[Indexed for MEDLINE]

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