Journal
PLANT AND CELL PHYSIOLOGY
Volume 56, Issue 3, Pages 414-420Publisher
OXFORD UNIV PRESS
DOI: 10.1093/pcp/pcu171
Keywords
EIN3; Ethylene; Jasmonate; MYC2; Protein-protein interactions
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Funding
- National Natural Science Foundation of China [31470375]
- Natural Science Foundation of Jiangsu Province [BK20140919]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [14KJB180014]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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One strategy for sessile plants to adapt to their surrounding environment involves the modulation of their various internal phytohormone signaling and distributions when the plants sense environmental change. There are currently dozens of identified phytohormones in plant cells and they act in concert to regulate plant growth, development, metabolism and defense. It has been determined that phytohormones often act together to achieve certain physiological functions. Thus, the study of hormone-hormone interactions is becoming a competitive research field for deciphering the underlying regulatory mechanisms. Among phytohormones, jasmonate and ethylene present a fascinating case of synergism and antagonism. They are commonly recognized as defense hormones that act synergistically. Plants impaired in jasmonate and/or ethylene signaling are susceptible to infections by necrotrophic fungi, suggesting that these two hormones are both required for defense. Moreover, jasmonate and ethylene also act antagonistically, such as in the regulation of apical hook development and wounding responses. Here, we highlight the recent breakthroughs in the understanding of jasmonate-ethylene coactions and point out the potential power of studying protein-protein interactions for systematically exploring signal cross-talk.
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