Does botrytis cinerea Ignore H(2)O(2)-induced oxidative stress during infection? Characterization of botrytis activator protein 1.
Identifieur interne : 001F87 ( Main/Exploration ); précédent : 001F86; suivant : 001F88Does botrytis cinerea Ignore H(2)O(2)-induced oxidative stress during infection? Characterization of botrytis activator protein 1.
Auteurs : Nora Temme [Allemagne] ; Paul TudzynskiSource :
- Molecular plant-microbe interactions : MPMI [ 0894-0282 ] ; 2009.
Descripteurs français
- KwdFr :
- Analyse de profil d'expression de gènes (MeSH), Botrytis (effets des médicaments et des substances chimiques), Botrytis (pathogénicité), Botrytis (physiologie), Espèces réactives de l'oxygène (pharmacologie), Facteur de transcription AP-1 (génétique), Facteur de transcription AP-1 (métabolisme), Facteur de transcription AP-1 (physiologie), Fruit (microbiologie), Peroxyde d'hydrogène (pharmacologie), Plantes (microbiologie), Protéines fongiques (génétique), Protéines fongiques (métabolisme), Protéines fongiques (physiologie), Régulation de l'expression des gènes fongiques (MeSH), Stress oxydatif (MeSH).
- MESH :
- effets des médicaments et des substances chimiques : Botrytis.
- génétique : Facteur de transcription AP-1, Protéines fongiques.
- microbiologie : Fruit, Plantes.
- métabolisme : Facteur de transcription AP-1, Protéines fongiques.
- pathogénicité : Botrytis.
- pharmacologie : Espèces réactives de l'oxygène, Peroxyde d'hydrogène.
- physiologie : Botrytis, Facteur de transcription AP-1, Protéines fongiques.
- Analyse de profil d'expression de gènes, Régulation de l'expression des gènes fongiques, Stress oxydatif.
English descriptors
- KwdEn :
- Botrytis (drug effects), Botrytis (pathogenicity), Botrytis (physiology), Fruit (microbiology), Fungal Proteins (genetics), Fungal Proteins (metabolism), Fungal Proteins (physiology), Gene Expression Profiling (MeSH), Gene Expression Regulation, Fungal (MeSH), Hydrogen Peroxide (pharmacology), Oxidative Stress (MeSH), Plants (microbiology), Reactive Oxygen Species (pharmacology), Transcription Factor AP-1 (genetics), Transcription Factor AP-1 (metabolism), Transcription Factor AP-1 (physiology).
- MESH :
- chemical , genetics : Fungal Proteins, Transcription Factor AP-1.
- drug effects : Botrytis.
- chemical , metabolism : Fungal Proteins, Transcription Factor AP-1.
- microbiology : Fruit, Plants.
- pathogenicity : Botrytis.
- chemical , pharmacology : Hydrogen Peroxide, Reactive Oxygen Species.
- physiology : Botrytis, Fungal Proteins, Transcription Factor AP-1.
- Gene Expression Profiling, Gene Expression Regulation, Fungal, Oxidative Stress.
Abstract
Botrytis cinerea is a phytopathogen infecting a broad range of plants including strawberries and grapevine. During infection, the necrotrophic fungus is exposed to reactive oxygen species (ROS) released by the oxidative burst, an early plant defense reaction. B. cinerea even produces ROS itself in planta. This raises questions about how the pathogen senses and responds to the host defense reaction and which role the pathogen's oxidative stress response systems play. Functional analysis of the AP-1 transcription factor Bap1 confirmed its role as a pivotal regulator of ROS detoxification in vitro. Macroarray analysis revealed 99 H(2)O(2)-induced Bap1 target genes, of which several genes encoded ROS-degrading enzymes as well as other central components of the cellular redox status. However, Bap1 is not essential for pathogenesis. In planta analyses revealed that the Bap1 target genes were not expressed 2 days postinoculation although H(2)O(2) was detectable, proving that the normal virulence of the Deltabap1 mutant is not due to alternative regulation of the major oxidative stress response system in planta. The fungus obviously does not suffer H(2)O(2)-induced oxidative stress in planta, questioning classical ideas about the role of the oxidative burst in the infection process.
DOI: 10.1094/MPMI-22-8-0987
PubMed: 19589074
Affiliations:
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During infection, the necrotrophic fungus is exposed to reactive oxygen species (ROS) released by the oxidative burst, an early plant defense reaction. B. cinerea even produces ROS itself in planta. This raises questions about how the pathogen senses and responds to the host defense reaction and which role the pathogen's oxidative stress response systems play. Functional analysis of the AP-1 transcription factor Bap1 confirmed its role as a pivotal regulator of ROS detoxification in vitro. Macroarray analysis revealed 99 H(2)O(2)-induced Bap1 target genes, of which several genes encoded ROS-degrading enzymes as well as other central components of the cellular redox status. However, Bap1 is not essential for pathogenesis. In planta analyses revealed that the Bap1 target genes were not expressed 2 days postinoculation although H(2)O(2) was detectable, proving that the normal virulence of the Deltabap1 mutant is not due to alternative regulation of the major oxidative stress response system in planta. The fungus obviously does not suffer H(2)O(2)-induced oxidative stress in planta, questioning classical ideas about the role of the oxidative burst in the infection process.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19589074</PMID><DateCompleted><Year>2009</Year><Month>10</Month><Day>09</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0894-0282</ISSN><JournalIssue CitedMedium="Print"><Volume>22</Volume><Issue>8</Issue><PubDate><Year>2009</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Molecular plant-microbe interactions : MPMI</Title><ISOAbbreviation>Mol Plant Microbe Interact</ISOAbbreviation></Journal><ArticleTitle>Does botrytis cinerea Ignore H(2)O(2)-induced oxidative stress during infection? Characterization of botrytis activator protein 1.</ArticleTitle><Pagination><MedlinePgn>987-98</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/MPMI-22-8-0987</ELocationID><Abstract><AbstractText>Botrytis cinerea is a phytopathogen infecting a broad range of plants including strawberries and grapevine. During infection, the necrotrophic fungus is exposed to reactive oxygen species (ROS) released by the oxidative burst, an early plant defense reaction. B. cinerea even produces ROS itself in planta. This raises questions about how the pathogen senses and responds to the host defense reaction and which role the pathogen's oxidative stress response systems play. Functional analysis of the AP-1 transcription factor Bap1 confirmed its role as a pivotal regulator of ROS detoxification in vitro. Macroarray analysis revealed 99 H(2)O(2)-induced Bap1 target genes, of which several genes encoded ROS-degrading enzymes as well as other central components of the cellular redox status. However, Bap1 is not essential for pathogenesis. In planta analyses revealed that the Bap1 target genes were not expressed 2 days postinoculation although H(2)O(2) was detectable, proving that the normal virulence of the Deltabap1 mutant is not due to alternative regulation of the major oxidative stress response system in planta. The fungus obviously does not suffer H(2)O(2)-induced oxidative stress in planta, questioning classical ideas about the role of the oxidative burst in the infection process.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Temme</LastName><ForeName>Nora</ForeName><Initials>N</Initials><AffiliationInfo><Affiliation>Institut für Botanik, Westf. 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