EIN2 and EIN3 in Ethylene Signalling

Young Hee Cho, Sangho Lee, Sang-Dong Yoo

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

Ethylene was the first plant hormone for which a receptor-dependent signalling pathway was established. The signal transduction pathway is framed around genetically identified factors encompassing membrane receptors through to intra-cellular regulators and then nuclear transcription factors. Recently, the cellular and biochemical connections among these genetic factors have been characterized to reveal a complex and intertwined signalling scheme. For ethylene signalling, the short-lived ETHYLENE INSENSITIVE2 (EIN2) and ETHYLENE INSENSITIVE3 (EIN3) proteins play central roles, and so regulation of the turnover of these proteins by specific E3 ligases serves as a key regulatory step in the pathway. Two antagonistic mitogen-activated protein kinase (MAPK) cascades that modify EIN3 appear to mediate intra-cellular signalling frommembrane receptors to nuclear transcription factors. The identification of further genomic and genetic components and elucidation of their cellular and biochemical roles in EIN2 and EIN3 regulation are thus required to complete the whole ethylene signal transduction pathway. Such a comprehensive understanding of ethylene signal transduction will provide useful information for the selection of genes that can enhance plant adaptations to unfavourable environmental conditions and so secure food production and plant-based renewable bio-energy for human society.

Original languageEnglish
Title of host publicationThe Plant Hormone Ethylene
PublisherWiley-Blackwell
Pages169-187
Number of pages19
Volume44
ISBN (Print)9781118223086, 9781444330038
DOIs
Publication statusPublished - 2012 Feb 14
Externally publishedYes

Keywords

  • ETHYLENE INSENSITIVE2 (EIN2)
  • ETHYLENE INSENSITIVE3 (EIN3)
  • Ethylene response factors (ERFs)
  • Ethylene signalling
  • Mitogen-activated protein kinase (MAPK) cascades
  • Protein stability

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

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  • Cite this

    Cho, Y. H., Lee, S., & Yoo, S-D. (2012). EIN2 and EIN3 in Ethylene Signalling. In The Plant Hormone Ethylene (Vol. 44, pp. 169-187). Wiley-Blackwell. https://doi.org/10.1002/9781118223086.ch7