GDSL lipase 1 regulates ethylene signaling and ethylene-associated systemic immunity in Arabidopsis

Hye Gi Kim, Sun Jae Kwon, Young Jin Jang, Joo Hee Chung, Myung Hee Nam, Ohkmae Kim

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Arabidopsis GDSL lipase 1 (GLIP1) has been shown to modulate systemic immunity through the regulation of ethylene signaling components. Here we demonstrate that the constitutive triple response mutant ctr1-1 requires GLIP1 for the ethylene response, gene expression, and pathogen resistance. The glip1-1 mutant was defective in induced resistance following primary inoculation of necrotrophic pathogens, whereas GLIP1-overexpressing plants showed resistance to multiple pathogens. Necrotrophic infection triggered the downregulation of EIN3 and the activation of ERF1 and SID2 in a GLIP1-dependent manner. These results suggest that GLIP1 positively and negatively regulates ethylene signaling, resulting in an ethylene-associated, necrotroph-induced immune response.

Original languageEnglish
Pages (from-to)1652-1658
Number of pages7
JournalFEBS Letters
Volume588
Issue number9
DOIs
Publication statusPublished - 2014 May 2

Keywords

  • EIN3
  • ERF1
  • Ethylene
  • GLIP1
  • Salicylic acid
  • Systemic immunity

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Cell Biology
  • Genetics
  • Molecular Biology
  • Structural Biology

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