Paradigms and Paradox in the Ethylene Signaling Pathway and Interaction Network
Paradigms and Paradox in the Ethylene Signaling Pathway and Interaction Network作者机构：State Key Laboratory of Protein and Plant Gene Research College of Life Sciences Peking University Beijing 100871 China
出 版 物：《Molecular Plant》 (分子植物（英文版）)
年 卷 期：2011年第4卷第4期
页 面：626-634页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071009[理学-细胞生物学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 090102[农学-作物遗传育种]
主 题：Ethylene signaling MAPK protein turnover negative feedback ETP1/2 interplay.
摘 要：Phytohormone ethylene plays pivotal roles in plant response to developmental and environmental signals. During the past few years, the emerging evidence has led us to a new understanding of the signaling mechanisms and regulatory networks of the ethylene action. In this review, we focus on the major advances made in the past three years, particularly the findings leading to new paradigms and the observations under debate. With the recent demonstration of the regulation of the protein stability of numerous key signaling components including EIN3, ELL1, EIN2, ETR2, EBFI/EBF2, and ETPI/ETP2, we highlight proteasome-dependent protein degradation as an essential regulatory mechanism that is widely adopted in the ethylene signaling pathway. We also discuss the implication of the negative feedback mechanism in the ethylene signaling pathway in light of ethylene-induced ETR2 and EBF2 gene expression. Meanwhile, we summarize the controversy on the involvement of MKK9-MPK3/6 cascade in the ethylene signaling versus biosynthesis pathway, and discuss the possible role of this MAPK module in the ethylene action. Finally, we describe the complex interactions between ethylene and other signaling pathways including auxin, light, and plant innate immunity, and propose that EIN3/ EIL1 act as a convergence point in the ethylene-initiated signaling network.
维普期刊数据库