Indolic secondary metabolites protect Arabidopsis from the oomycete pathogen Phytophthora brassicae.
Identifieur interne : 001895 ( Main/Exploration ); précédent : 001894; suivant : 001896Indolic secondary metabolites protect Arabidopsis from the oomycete pathogen Phytophthora brassicae.
Auteurs : Klaus Schlaeppi [Suisse] ; Felix MauchSource :
- Plant signaling & behavior [ 1559-2324 ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
- microbiologie : Maladies des plantes.
- métabolisme : Arabidopsis, Glucosinolates, Indoles, Protéines d'Arabidopsis, Sesquiterpènes, Thiazoles.
- physiologie : Résistance à la maladie.
- Mutation, Phytophthora.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Arabidopsis Proteins, Glucosinolates, Indoles, Sesquiterpenes, Thiazoles.
- metabolism : Arabidopsis.
- microbiology : Plant Diseases.
- physiology : Disease Resistance.
- Mutation, Phytophthora.
Abstract
The model plant Arabidopsis thaliana contains a large arsenal of secondary metabolites that are not essential in development but have important ecological functions in counteracting attacks of pathogens and herbivores. Preformed secondary compounds are often referred to as phytoanticipins and metabolites, that are synthesized de novo in response to biotic stress are known as phytoalexins. Camalexin is the typical phytoalexin of Arabidopsis. It has antimicrobial activity towards some pathogens and was shown to be an important component of disease resistance in several plant pathogen interactions. Glucosinolates (GS) are characteristic phytoanticipins of the Brassicaceae family including Arabidopsis. GS are best known as repellents or attractants for herbivorous insects and their predators whereas their antimicrobial potential has received relatively little attention. The GS are glucosides and the biologically active aglycone is released upon biotic stress by glucohydrolase enzymes commenly called myrosinases. Because an Arabidopsis mutant susceptible to the oomycete pathogen Phytophthora brassicae shows a partial deficiency in both camalexin and iGS accumulation we became intrigued by the role of these secondary compounds in disease resistance. Our results show that disease resistance of Arabidopsis to P. brassicae is established by the combined action of iGS and camalexin.
DOI: 10.4161/psb.5.9.12410
PubMed: 21490418
PubMed Central: PMC3115075
Affiliations:
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essential in development but have important ecological functions in counteracting attacks of pathogens and herbivores. Preformed secondary compounds are often referred to as phytoanticipins and metabolites, that are synthesized de novo in response to biotic stress are known as phytoalexins. Camalexin is the typical phytoalexin of Arabidopsis. It has antimicrobial activity towards some pathogens and was shown to be an important component of disease resistance in several plant pathogen interactions. Glucosinolates (GS) are characteristic phytoanticipins of the Brassicaceae family including Arabidopsis. GS are best known as repellents or attractants for herbivorous insects and their predators whereas their antimicrobial potential has received relatively little attention. The GS are glucosides and the biologically active aglycone is released upon biotic stress by glucohydrolase enzymes commenly called myrosinases. Because an Arabidopsis mutant susceptible to the oomycete pathogen Phytophthora brassicae shows a partial deficiency in both camalexin and iGS accumulation we became intrigued by the role of these secondary compounds in disease resistance. Our results show that disease resistance of Arabidopsis to P. brassicae is established by the combined action of iGS and camalexin.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21490418</PMID><DateCompleted><Year>2011</Year><Month>12</Month><Day>07</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1559-2324</ISSN><JournalIssue CitedMedium="Internet"><Volume>5</Volume><Issue>9</Issue><PubDate><Year>2010</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Plant signaling & behavior</Title><ISOAbbreviation>Plant Signal Behav</ISOAbbreviation></Journal><ArticleTitle>Indolic secondary metabolites protect Arabidopsis from the oomycete pathogen Phytophthora brassicae.</ArticleTitle><Pagination><MedlinePgn>1099-101</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.4161/psb.5.9.12410</ELocationID><Abstract><AbstractText>The model plant Arabidopsis thaliana contains a large arsenal of secondary metabolites that are not essential in development but have important ecological functions in counteracting attacks of pathogens and herbivores. Preformed secondary compounds are often referred to as phytoanticipins and metabolites, that are synthesized de novo in response to biotic stress are known as phytoalexins. Camalexin is the typical phytoalexin of Arabidopsis. It has antimicrobial activity towards some pathogens and was shown to be an important component of disease resistance in several plant pathogen interactions. Glucosinolates (GS) are characteristic phytoanticipins of the Brassicaceae family including Arabidopsis. GS are best known as repellents or attractants for herbivorous insects and their predators whereas their antimicrobial potential has received relatively little attention. The GS are glucosides and the biologically active aglycone is released upon biotic stress by glucohydrolase enzymes commenly called myrosinases. Because an Arabidopsis mutant susceptible to the oomycete pathogen Phytophthora brassicae shows a partial deficiency in both camalexin and iGS accumulation we became intrigued by the role of these secondary compounds in disease resistance. 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IdType="pii">12410</ArticleId><ArticleId IdType="doi">10.4161/psb.5.9.12410</ArticleId><ArticleId IdType="pmc">PMC3115075</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Plant J. 2001 Nov;28(3):293-305</Citation><ArticleIdList><ArticleId IdType="pubmed">11722772</ArticleId></ArticleIdList></Reference><Reference><Citation>Curr Opin Plant Biol. 2005 Jun;8(3):308-16</Citation><ArticleIdList><ArticleId IdType="pubmed">15860428</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 2010 Mar;152(3):1562-73</Citation><ArticleIdList><ArticleId IdType="pubmed">20081042</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 2006 Aug;141(4):1248-54</Citation><ArticleIdList><ArticleId IdType="pubmed">16766671</ArticleId></ArticleIdList></Reference><Reference><Citation>Nature. 2001 Jun 14;411(6839):843-7</Citation><ArticleIdList><ArticleId IdType="pubmed">11459067</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 2009 Jan 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