title: Ethylene signaling and regulation in plant growth and stress responses.
abstract: Gaseous phytohormone ethylene affects many aspects of plant growth and development. The ethylene signaling pathway starts when ethylene binds to its receptors. Since the cloning of the first ethylene receptor ETR1 from Arabidopsis, a large number of studies have steadily improved our understanding of the receptors and downstream components in ethylene signal transduction pathway. This article reviews the regulation of ethylene receptors, signal transduction, and the posttranscriptional modulation of downstream components. Functional roles and importance of the ethylene signaling components in plant growth and stress responses are also discussed. Cross-reactions of ethylene with auxin and other phytohormones in plant organ growth will be analyzed. The studies of ethylene signaling in plant growth, development, and stress responses in the past decade greatly advanced our knowledge of how plants respond to endogenous signals and environmental factors.
authors.affiliation: College of Life Sciences, Qingdao Agricultural University, 266109 Qingdao, People's Republic of China.
authors.forename: Feifei
authors.initials: F
authors.lastname: Wang
authors.forename: Xiankui
authors.initials: X
authors.lastname: Cui
authors.forename: Yue
authors.initials: Y
authors.lastname: Sun
authors.forename: Chun-Hai
authors.initials: CH
authors.lastname: Dong
mesh_terms: D017360:Arabidopsis / Q000378:metabolism; D005030:Ethylenes / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant / Q000235:genetics / Q000502:physiology; D010937:Plant Growth Regulators / Q000378:metabolism; D015398:Signal Transduction / Q000235:genetics / Q000502:physiology
chemical_list: D005030:Ethylenes; D010937:Plant Growth Regulators; C036216:ethylene