Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10870731 | FEBS Letters | 2014 | 7 Pages |
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.
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Authors
Hye Gi Kim, Sun Jae Kwon, Young Jin Jang, Joo Hee Chung, Myung Hee Nam, Ohkmae K. Park,