Cooperation and Functional Diversification of Two Closely Related Galactolipase Genes for Jasmonate Biosynthesis

Youbong Hyun, Sungwook Choi, Hyun Ju Hwang, Jihyeon Yu, Sang Jip Nam, Jaeyoung Ko, Ju Young Park, Young Sam Seo, Eun Yu Kim, Stephen Beungtae Ryu, Woo Taek Kim, Yong Hwan Lee, Heonjoong Kang, Ilha Lee

Research output: Contribution to journalArticle

113 Citations (Scopus)

Abstract

Jasmonic acid (JA) plays pivotal roles in diverse plant biological processes, including wound response. Chloroplast lipid hydrolysis is a critical step for JA biosynthesis, but the mechanism of this process remains elusive. We report here that DONGLE (DGL), a homolog of DEFECTIVE IN ANTHER DEHISCENCE1 (DAD1), encodes a chloroplast-targeted lipase with strong galactolipase and weak phospholipase A1 activity. DGL is expressed in the leaves and has a specific role in maintaining basal JA content under normal conditions, and this expression regulates vegetative growth and is required for a rapid JA burst after wounding. During wounding, DGL and DAD1 have partially redundant functions for JA production, but they show different induction kinetics, indicating temporally separated roles: DGL plays a role in the early phase of JA production, and DAD1 plays a role in the late phase of JA production. Whereas DGL and DAD1 are necessary and sufficient for JA production, phospholipase D appears to modulate wound response by stimulating DGL and DAD1 expression.

Original languageEnglish
Pages (from-to)183-192
Number of pages10
JournalDevelopmental Cell
Volume14
Issue number2
DOIs
Publication statusPublished - 2008 Feb 12

Fingerprint

galactolipase
Biosynthesis
Genes
Chloroplasts
Phospholipases A1
Biological Phenomena
Phospholipase D
Wounds and Injuries
jasmonic acid
Lipase
Hydrolysis

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Biochemistry, Genetics and Molecular Biology(all)
  • Developmental Biology
  • Cell Biology

Cite this

Hyun, Youbong ; Choi, Sungwook ; Hwang, Hyun Ju ; Yu, Jihyeon ; Nam, Sang Jip ; Ko, Jaeyoung ; Park, Ju Young ; Seo, Young Sam ; Kim, Eun Yu ; Ryu, Stephen Beungtae ; Kim, Woo Taek ; Lee, Yong Hwan ; Kang, Heonjoong ; Lee, Ilha. / Cooperation and Functional Diversification of Two Closely Related Galactolipase Genes for Jasmonate Biosynthesis. In: Developmental Cell. 2008 ; Vol. 14, No. 2. pp. 183-192.
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author = "Youbong Hyun and Sungwook Choi and Hwang, {Hyun Ju} and Jihyeon Yu and Nam, {Sang Jip} and Jaeyoung Ko and Park, {Ju Young} and Seo, {Young Sam} and Kim, {Eun Yu} and Ryu, {Stephen Beungtae} and Kim, {Woo Taek} and Lee, {Yong Hwan} and Heonjoong Kang and Ilha Lee",
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Hyun, Y, Choi, S, Hwang, HJ, Yu, J, Nam, SJ, Ko, J, Park, JY, Seo, YS, Kim, EY, Ryu, SB, Kim, WT, Lee, YH, Kang, H & Lee, I 2008, 'Cooperation and Functional Diversification of Two Closely Related Galactolipase Genes for Jasmonate Biosynthesis', Developmental Cell, vol. 14, no. 2, pp. 183-192. https://doi.org/10.1016/j.devcel.2007.11.010

Cooperation and Functional Diversification of Two Closely Related Galactolipase Genes for Jasmonate Biosynthesis. / Hyun, Youbong; Choi, Sungwook; Hwang, Hyun Ju; Yu, Jihyeon; Nam, Sang Jip; Ko, Jaeyoung; Park, Ju Young; Seo, Young Sam; Kim, Eun Yu; Ryu, Stephen Beungtae; Kim, Woo Taek; Lee, Yong Hwan; Kang, Heonjoong; Lee, Ilha.

In: Developmental Cell, Vol. 14, No. 2, 12.02.2008, p. 183-192.

Research output: Contribution to journalArticle

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T1 - Cooperation and Functional Diversification of Two Closely Related Galactolipase Genes for Jasmonate Biosynthesis

AU - Hyun, Youbong

AU - Choi, Sungwook

AU - Hwang, Hyun Ju

AU - Yu, Jihyeon

AU - Nam, Sang Jip

AU - Ko, Jaeyoung

AU - Park, Ju Young

AU - Seo, Young Sam

AU - Kim, Eun Yu

AU - Ryu, Stephen Beungtae

AU - Kim, Woo Taek

AU - Lee, Yong Hwan

AU - Kang, Heonjoong

AU - Lee, Ilha

PY - 2008/2/12

Y1 - 2008/2/12

N2 - Jasmonic acid (JA) plays pivotal roles in diverse plant biological processes, including wound response. Chloroplast lipid hydrolysis is a critical step for JA biosynthesis, but the mechanism of this process remains elusive. We report here that DONGLE (DGL), a homolog of DEFECTIVE IN ANTHER DEHISCENCE1 (DAD1), encodes a chloroplast-targeted lipase with strong galactolipase and weak phospholipase A1 activity. DGL is expressed in the leaves and has a specific role in maintaining basal JA content under normal conditions, and this expression regulates vegetative growth and is required for a rapid JA burst after wounding. During wounding, DGL and DAD1 have partially redundant functions for JA production, but they show different induction kinetics, indicating temporally separated roles: DGL plays a role in the early phase of JA production, and DAD1 plays a role in the late phase of JA production. Whereas DGL and DAD1 are necessary and sufficient for JA production, phospholipase D appears to modulate wound response by stimulating DGL and DAD1 expression.

AB - Jasmonic acid (JA) plays pivotal roles in diverse plant biological processes, including wound response. Chloroplast lipid hydrolysis is a critical step for JA biosynthesis, but the mechanism of this process remains elusive. We report here that DONGLE (DGL), a homolog of DEFECTIVE IN ANTHER DEHISCENCE1 (DAD1), encodes a chloroplast-targeted lipase with strong galactolipase and weak phospholipase A1 activity. DGL is expressed in the leaves and has a specific role in maintaining basal JA content under normal conditions, and this expression regulates vegetative growth and is required for a rapid JA burst after wounding. During wounding, DGL and DAD1 have partially redundant functions for JA production, but they show different induction kinetics, indicating temporally separated roles: DGL plays a role in the early phase of JA production, and DAD1 plays a role in the late phase of JA production. Whereas DGL and DAD1 are necessary and sufficient for JA production, phospholipase D appears to modulate wound response by stimulating DGL and DAD1 expression.

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