GDSL LIPASE1 Modulates Plant Immunity through Feedback Regulation of Ethylene Signaling

Ethylene is a key signal in the regulation of plant defense responses. It is required for the expression and function of GDSL LIPASE1 (GLIP1) in Arabidopsis (Arabidopsis thaliana), which plays an important role in plant immunity. Here, we explore molecular mechanisms underlying the relationship betw...

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Veröffentlicht in:Plant physiology (Bethesda) 2013-12, Vol.163 (4), p.1776-1791
Hauptverfasser: Kim, Hye Gi, Kwon, Sun Jae, Jang, Young Jin, Nam, Myung Hee, Chung, Joo Hee, Na, Yun-Cheol, Guo, Hongwei, Park, Ohkmae K.
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container_issue 4
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container_title Plant physiology (Bethesda)
container_volume 163
creator Kim, Hye Gi
Kwon, Sun Jae
Jang, Young Jin
Nam, Myung Hee
Chung, Joo Hee
Na, Yun-Cheol
Guo, Hongwei
Park, Ohkmae K.
description Ethylene is a key signal in the regulation of plant defense responses. It is required for the expression and function of GDSL LIPASE1 (GLIP1) in Arabidopsis (Arabidopsis thaliana), which plays an important role in plant immunity. Here, we explore molecular mechanisms underlying the relationship between GLIP1 and ethylene signaling by an epistatic analysis of ethylene response mutants and GLIP1-overexpressing (35S:GLIP1) plants. We show that GLIP1 expression is regulated by ethylene signaling components and, further, that GLIP1 expression or application of petiole exudates from 35S:GLIP1 plants affects ethylene signaling both positively and negatively, leading to ETHYLENE RESPONSE FACTOR1 activation and ETHYLENE INSENSITIVE3 (EIN3) down-regulation, respectively. Additionally, 35S:GLIP1 plants or their exudates increase the expression of the salicylic acid biosynthesis gene SALICYLIC ACID INDUCTION-DEFICIENT2, known to be inhibited by EIN3 and EIN3-LIKE1. These results suggest that GLIP1 regulates plant immunity through positive and negative feedback regulation of ethylene signaling, and this is mediated by its activity to accumulate a systemic signal(s) in the phloem. We propose a model explaining how GLIP1 regulates the fine-tuning of ethylene signaling and ethylene-salicylic acid cross talk.
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It is required for the expression and function of GDSL LIPASE1 (GLIP1) in Arabidopsis (Arabidopsis thaliana), which plays an important role in plant immunity. Here, we explore molecular mechanisms underlying the relationship between GLIP1 and ethylene signaling by an epistatic analysis of ethylene response mutants and GLIP1-overexpressing (35S:GLIP1) plants. We show that GLIP1 expression is regulated by ethylene signaling components and, further, that GLIP1 expression or application of petiole exudates from 35S:GLIP1 plants affects ethylene signaling both positively and negatively, leading to ETHYLENE RESPONSE FACTOR1 activation and ETHYLENE INSENSITIVE3 (EIN3) down-regulation, respectively. Additionally, 35S:GLIP1 plants or their exudates increase the expression of the salicylic acid biosynthesis gene SALICYLIC ACID INDUCTION-DEFICIENT2, known to be inhibited by EIN3 and EIN3-LIKE1. 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It is required for the expression and function of GDSL LIPASE1 (GLIP1) in Arabidopsis (Arabidopsis thaliana), which plays an important role in plant immunity. Here, we explore molecular mechanisms underlying the relationship between GLIP1 and ethylene signaling by an epistatic analysis of ethylene response mutants and GLIP1-overexpressing (35S:GLIP1) plants. We show that GLIP1 expression is regulated by ethylene signaling components and, further, that GLIP1 expression or application of petiole exudates from 35S:GLIP1 plants affects ethylene signaling both positively and negatively, leading to ETHYLENE RESPONSE FACTOR1 activation and ETHYLENE INSENSITIVE3 (EIN3) down-regulation, respectively. Additionally, 35S:GLIP1 plants or their exudates increase the expression of the salicylic acid biosynthesis gene SALICYLIC ACID INDUCTION-DEFICIENT2, known to be inhibited by EIN3 and EIN3-LIKE1. These results suggest that GLIP1 regulates plant immunity through positive and negative feedback regulation of ethylene signaling, and this is mediated by its activity to accumulate a systemic signal(s) in the phloem. 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Psychology</topic><topic>Gene expression regulation</topic><topic>Gene Expression Regulation, Plant</topic><topic>Genes, Plant - genetics</topic><topic>immunity</topic><topic>Leaves</topic><topic>Models, Biological</topic><topic>Mutation - genetics</topic><topic>Pathogens</topic><topic>Petioles</topic><topic>Phenotype</topic><topic>Phenotypes</topic><topic>Plant cells</topic><topic>Plant Diseases - genetics</topic><topic>Plant Diseases - immunology</topic><topic>Plant Diseases - microbiology</topic><topic>Plant Exudates - metabolism</topic><topic>Plant immunity</topic><topic>Plant Immunity - genetics</topic><topic>Plant physiology and development</topic><topic>Plants</topic><topic>Protein Binding</topic><topic>Salicylic Acid - metabolism</topic><topic>Seedlings</topic><topic>Signal Transduction - genetics</topic><topic>Signal Transduction - immunology</topic><topic>SIGNALING AND RESPONSE</topic><topic>Up-Regulation - genetics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Hye Gi</creatorcontrib><creatorcontrib>Kwon, Sun Jae</creatorcontrib><creatorcontrib>Jang, Young Jin</creatorcontrib><creatorcontrib>Nam, Myung Hee</creatorcontrib><creatorcontrib>Chung, Joo Hee</creatorcontrib><creatorcontrib>Na, Yun-Cheol</creatorcontrib><creatorcontrib>Guo, Hongwei</creatorcontrib><creatorcontrib>Park, Ohkmae K.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Plant physiology (Bethesda)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Hye Gi</au><au>Kwon, Sun Jae</au><au>Jang, Young Jin</au><au>Nam, Myung Hee</au><au>Chung, Joo Hee</au><au>Na, Yun-Cheol</au><au>Guo, Hongwei</au><au>Park, Ohkmae K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>GDSL LIPASE1 Modulates Plant Immunity through Feedback Regulation of Ethylene Signaling</atitle><jtitle>Plant physiology (Bethesda)</jtitle><addtitle>Plant Physiol</addtitle><date>2013-12-01</date><risdate>2013</risdate><volume>163</volume><issue>4</issue><spage>1776</spage><epage>1791</epage><pages>1776-1791</pages><issn>0032-0889</issn><issn>1532-2548</issn><eissn>1532-2548</eissn><coden>PPHYA5</coden><abstract>Ethylene is a key signal in the regulation of plant defense responses. It is required for the expression and function of GDSL LIPASE1 (GLIP1) in Arabidopsis (Arabidopsis thaliana), which plays an important role in plant immunity. Here, we explore molecular mechanisms underlying the relationship between GLIP1 and ethylene signaling by an epistatic analysis of ethylene response mutants and GLIP1-overexpressing (35S:GLIP1) plants. We show that GLIP1 expression is regulated by ethylene signaling components and, further, that GLIP1 expression or application of petiole exudates from 35S:GLIP1 plants affects ethylene signaling both positively and negatively, leading to ETHYLENE RESPONSE FACTOR1 activation and ETHYLENE INSENSITIVE3 (EIN3) down-regulation, respectively. Additionally, 35S:GLIP1 plants or their exudates increase the expression of the salicylic acid biosynthesis gene SALICYLIC ACID INDUCTION-DEFICIENT2, known to be inhibited by EIN3 and EIN3-LIKE1. These results suggest that GLIP1 regulates plant immunity through positive and negative feedback regulation of ethylene signaling, and this is mediated by its activity to accumulate a systemic signal(s) in the phloem. We propose a model explaining how GLIP1 regulates the fine-tuning of ethylene signaling and ethylene-salicylic acid cross talk.</abstract><cop>Rockville, MD</cop><pub>American Society of Plant Biologists</pub><pmid>24170202</pmid><doi>10.1104/pp.113.225649</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Jstor Complete Legacy; Oxford University Press Journals All Titles (1996-Current)
subjects Alternaria - physiology
Arabidopsis - enzymology
Arabidopsis - genetics
Arabidopsis - immunology
Arabidopsis - microbiology
Arabidopsis Proteins - genetics
Arabidopsis Proteins - metabolism
Biological and medical sciences
carboxylic ester hydrolases
Carboxylic Ester Hydrolases - metabolism
Disease Resistance - genetics
Disease Resistance - immunology
Down regulation
Down-Regulation - genetics
Epistasis, Genetic
ethylene
Ethylenes - metabolism
Feedback, Physiological
Fundamental and applied biological sciences. Psychology
Gene expression regulation
Gene Expression Regulation, Plant
Genes, Plant - genetics
immunity
Leaves
Models, Biological
Mutation - genetics
Pathogens
Petioles
Phenotype
Phenotypes
Plant cells
Plant Diseases - genetics
Plant Diseases - immunology
Plant Diseases - microbiology
Plant Exudates - metabolism
Plant immunity
Plant Immunity - genetics
Plant physiology and development
Plants
Protein Binding
Salicylic Acid - metabolism
Seedlings
Signal Transduction - genetics
Signal Transduction - immunology
SIGNALING AND RESPONSE
Up-Regulation - genetics
title GDSL LIPASE1 Modulates Plant Immunity through Feedback Regulation of Ethylene Signaling
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