A gaseous plant hormone ethylene

The signaling pathway

Sunjoo Joo, Woo Taek Kim

Research output: Contribution to journalReview article

6 Citations (Scopus)

Abstract

Phytohormone ethylene has profound effects on growth and development in plants. Molecular genetic studies using Arabidopsis have defined a linear pathway for ethylene signal transduction leading from initial hormone perception to changes in gene expression. Ethylene is perceived by a family of ethylene receptor complex at endoplasmic reticulum (ER), which negatively regulates the ethylene response. Ethylene binding inactivates the receptors and represses the Raf-like kinase CONSTITUTIVE TRIPLE RESPONSE1 (CTR1) that actively represses ethylene response pathway in the absence of ethylene. Consequently, the ETHYLENE INSENSITIVE2 (EIN2), a membrane protein with similarities to Nramp metal ion transporter becomes activated and positively regulates the ethylene signaling pathway by transmitting the signal into the nucleus. Finally, the nuclear signal initiates the transcriptional cascade via the transcription factors ETHYLENE INSENSITIV3/ETHYLENE INSENSITIVE3-LIKE proteins (EIN3/EILs). This review will summarize the up-to-date understanding of ethylene signal transduction, in aiming to illustrate how challenges in hormone biology have been resolved through the power of molecular genetics and to provide references for interested readers searching for further information.

Original languageEnglish
Pages (from-to)109-116
Number of pages8
JournalJournal of Plant Biology
Volume50
Issue number2
DOIs
Publication statusPublished - 2007 Apr 30

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plant hormones
ethylene
molecular genetics
signal transduction
hormones
receptors
metal ions
membrane proteins
endoplasmic reticulum
transporters
growth and development
phosphotransferases (kinases)
transcription factors
Arabidopsis
Biological Sciences
gene expression

All Science Journal Classification (ASJC) codes

  • Plant Science

Cite this

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title = "A gaseous plant hormone ethylene: The signaling pathway",
abstract = "Phytohormone ethylene has profound effects on growth and development in plants. Molecular genetic studies using Arabidopsis have defined a linear pathway for ethylene signal transduction leading from initial hormone perception to changes in gene expression. Ethylene is perceived by a family of ethylene receptor complex at endoplasmic reticulum (ER), which negatively regulates the ethylene response. Ethylene binding inactivates the receptors and represses the Raf-like kinase CONSTITUTIVE TRIPLE RESPONSE1 (CTR1) that actively represses ethylene response pathway in the absence of ethylene. Consequently, the ETHYLENE INSENSITIVE2 (EIN2), a membrane protein with similarities to Nramp metal ion transporter becomes activated and positively regulates the ethylene signaling pathway by transmitting the signal into the nucleus. Finally, the nuclear signal initiates the transcriptional cascade via the transcription factors ETHYLENE INSENSITIV3/ETHYLENE INSENSITIVE3-LIKE proteins (EIN3/EILs). This review will summarize the up-to-date understanding of ethylene signal transduction, in aiming to illustrate how challenges in hormone biology have been resolved through the power of molecular genetics and to provide references for interested readers searching for further information.",
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A gaseous plant hormone ethylene : The signaling pathway. / Joo, Sunjoo; Kim, Woo Taek.

In: Journal of Plant Biology, Vol. 50, No. 2, 30.04.2007, p. 109-116.

Research output: Contribution to journalReview article

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