Shedding light on the role of photosynthesis in pathogen colonization and host defense.
Identifieur interne : 000818 ( PubMed/Corpus ); précédent : 000817; suivant : 000819Shedding light on the role of photosynthesis in pathogen colonization and host defense.
Auteurs : Betiana S. Garavaglia ; Ludivine Thomas ; Natalia Gottig ; Tamara Zimaro ; Cecilia G. Garofalo ; Chris Gehring ; Jorgelina OttadoSource :
- Communicative & integrative biology [ 1942-0889 ] ; 2010.
Abstract
The role of photosynthesis in plant defense is a fundamental question awaiting further molecular and physiological elucidation. To this end we investigated host responses to infection with the bacterial pathogen Xanthomonas axonopodis pv. citri, the pathogen responsible for citrus canker. This pathogen encodes a plant-like natriuretic peptide (XacPNP) that is expressed specifically during the infection process and prevents deterioration of the physiological condition of the infected tissue. Proteomic assays of citrus leaves infected with a XacPNP deletion mutant (DeltaXacPNP) resulted in a major reduction in photosynthetic proteins such as Rubisco, Rubisco activase and ATP synthase as a compared with infection with wild type bacteria. In contrast, infiltration of citrus leaves with recombinant XacPNP caused an increase in these host proteins and a concomitant increase in photosynthetic efficiency as measured by chlorophyll fluorescence assays. Reversion of the reduction in photosynthetic efficiency in citrus leaves infected with DeltaXacPNP was achieved by the application of XacPNP or Citrus sinensis PNP lending support to a case of molecular mimicry. Finally, given that DeltaXacPNP infection is less successful than infection with the wild type, it appears that reducing photosynthesis is an effective plant defense mechanism against biotrophic pathogens.
PubMed: 20798833
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Garofalo</name></author><author><name sortKey="Gehring, Chris" sort="Gehring, Chris" uniqKey="Gehring C" first="Chris" last="Gehring">Chris Gehring</name></author><author><name sortKey="Ottado, Jorgelina" sort="Ottado, Jorgelina" uniqKey="Ottado J" first="Jorgelina" last="Ottado">Jorgelina Ottado</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20798833</idno><idno type="pmid">20798833</idno><idno type="wicri:Area/PubMed/Corpus">000818</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Shedding light on the role of photosynthesis in pathogen colonization and host defense.</title><author><name sortKey="Garavaglia, Betiana S" sort="Garavaglia, Betiana S" uniqKey="Garavaglia B" first="Betiana S" last="Garavaglia">Betiana S. Garavaglia</name></author><author><name sortKey="Thomas, Ludivine" sort="Thomas, Ludivine" uniqKey="Thomas L" first="Ludivine" last="Thomas">Ludivine Thomas</name></author><author><name sortKey="Gottig, Natalia" sort="Gottig, Natalia" uniqKey="Gottig N" first="Natalia" last="Gottig">Natalia Gottig</name></author><author><name sortKey="Zimaro, Tamara" sort="Zimaro, Tamara" uniqKey="Zimaro T" first="Tamara" last="Zimaro">Tamara Zimaro</name></author><author><name sortKey="Garofalo, Cecilia G" sort="Garofalo, Cecilia G" uniqKey="Garofalo C" first="Cecilia G" last="Garofalo">Cecilia G. Garofalo</name></author><author><name sortKey="Gehring, Chris" sort="Gehring, Chris" uniqKey="Gehring C" first="Chris" last="Gehring">Chris Gehring</name></author><author><name sortKey="Ottado, Jorgelina" sort="Ottado, Jorgelina" uniqKey="Ottado J" first="Jorgelina" last="Ottado">Jorgelina Ottado</name></author></analytic><series><title level="j">Communicative & integrative biology</title><idno type="eISSN">1942-0889</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The role of photosynthesis in plant defense is a fundamental question awaiting further molecular and physiological elucidation. To this end we investigated host responses to infection with the bacterial pathogen Xanthomonas axonopodis pv. citri, the pathogen responsible for citrus canker. This pathogen encodes a plant-like natriuretic peptide (XacPNP) that is expressed specifically during the infection process and prevents deterioration of the physiological condition of the infected tissue. Proteomic assays of citrus leaves infected with a XacPNP deletion mutant (DeltaXacPNP) resulted in a major reduction in photosynthetic proteins such as Rubisco, Rubisco activase and ATP synthase as a compared with infection with wild type bacteria. In contrast, infiltration of citrus leaves with recombinant XacPNP caused an increase in these host proteins and a concomitant increase in photosynthetic efficiency as measured by chlorophyll fluorescence assays. Reversion of the reduction in photosynthetic efficiency in citrus leaves infected with DeltaXacPNP was achieved by the application of XacPNP or Citrus sinensis PNP lending support to a case of molecular mimicry. Finally, given that DeltaXacPNP infection is less successful than infection with the wild type, it appears that reducing photosynthesis is an effective plant defense mechanism against biotrophic pathogens.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">20798833</PMID><DateCreated><Year>2010</Year><Month>8</Month><Day>27</Day></DateCreated><DateCompleted><Year>2011</Year><Month>07</Month><Day>14</Day></DateCompleted><DateRevised><Year>2014</Year><Month>10</Month><Day>9</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1942-0889</ISSN><JournalIssue CitedMedium="Internet"><Volume>3</Volume><Issue>4</Issue><PubDate><Year>2010</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Communicative & integrative biology</Title><ISOAbbreviation>Commun Integr Biol</ISOAbbreviation></Journal><ArticleTitle>Shedding light on the role of photosynthesis in pathogen colonization and host defense.</ArticleTitle><Pagination><MedlinePgn>382-4</MedlinePgn></Pagination><Abstract><AbstractText>The role of photosynthesis in plant defense is a fundamental question awaiting further molecular and physiological elucidation. To this end we investigated host responses to infection with the bacterial pathogen Xanthomonas axonopodis pv. citri, the pathogen responsible for citrus canker. This pathogen encodes a plant-like natriuretic peptide (XacPNP) that is expressed specifically during the infection process and prevents deterioration of the physiological condition of the infected tissue. Proteomic assays of citrus leaves infected with a XacPNP deletion mutant (DeltaXacPNP) resulted in a major reduction in photosynthetic proteins such as Rubisco, Rubisco activase and ATP synthase as a compared with infection with wild type bacteria. In contrast, infiltration of citrus leaves with recombinant XacPNP caused an increase in these host proteins and a concomitant increase in photosynthetic efficiency as measured by chlorophyll fluorescence assays. Reversion of the reduction in photosynthetic efficiency in citrus leaves infected with DeltaXacPNP was achieved by the application of XacPNP or Citrus sinensis PNP lending support to a case of molecular mimicry. Finally, given that DeltaXacPNP infection is less successful than infection with the wild type, it appears that reducing photosynthesis is an effective plant defense mechanism against biotrophic pathogens.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Garavaglia</LastName><ForeName>Betiana S</ForeName><Initials>BS</Initials></Author><Author ValidYN="Y"><LastName>Thomas</LastName><ForeName>Ludivine</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Gottig</LastName><ForeName>Natalia</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Zimaro</LastName><ForeName>Tamara</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Garofalo</LastName><ForeName>Cecilia G</ForeName><Initials>CG</Initials></Author><Author ValidYN="Y"><LastName>Gehring</LastName><ForeName>Chris</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Ottado</LastName><ForeName>Jorgelina</ForeName><Initials>J</Initials></Author></AuthorList><Language>ENG</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Commun Integr Biol</MedlineTA><NlmUniqueID>101478473</NlmUniqueID><ISSNLinking>1942-0889</ISSNLinking></MedlineJournalInfo><CommentsCorrectionsList><CommentsCorrections RefType="Cites"><RefSource>BMC Plant Biol. 2010;10:51</RefSource><PMID Version="1">20302677</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Commun Integr Biol. 2009;2(2):89-90</RefSource><PMID Version="1">19704897</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Mol Plant Microbe Interact. 2009 May;22(5):487-97</RefSource><PMID Version="1">19348567</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Proc Natl Acad Sci U S A. 2008 Nov 25;105(47):18631-6</RefSource><PMID Version="1">19015524</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>BMC Plant Biol. 2008;8:24</RefSource><PMID Version="1">18307823</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>J Exp Bot. 2007;58(15-16):4019-26</RefSource><PMID Version="1">18182420</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Mol Cell Biol Res Commun. 1999 Jul;2(1):53-7</RefSource><PMID Version="1">10527892</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Cell Mol Life Sci. 1998 Mar;54(3):272-6</RefSource><PMID Version="1">9575339</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Cell Physiol. 2004 Aug;45(8):1093-8</RefSource><PMID Version="1">15356335</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>BMC Evol Biol. 2004 Mar 24;4:10</RefSource><PMID Version="1">15038836</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>FEBS Lett. 2004 Jan 2;556(1-3):99-103</RefSource><PMID Version="1">14706834</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Int J Biochem Cell Biol. 2003 Sep;35(9):1318-22</RefSource><PMID Version="1">12798346</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>J Exp Bot. 2003 Jun;54(387):1553-64</RefSource><PMID Version="1">12730261</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Proteomics. 2005 Jan;5(1):212-21</RefSource><PMID Version="1">15593128</PMID></CommentsCorrections></CommentsCorrectionsList><OtherID Source="NLM">PMC2928325</OtherID><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Xanthomonas</Keyword><Keyword MajorTopicYN="N">citrus canker</Keyword><Keyword MajorTopicYN="N">photosynthetic efficiency</Keyword><Keyword MajorTopicYN="N">plant natriuretic peptide</Keyword><Keyword MajorTopicYN="N">plant-pathogen interaction</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2010</Year><Month>4</Month><Day>7</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2010</Year><Month>4</Month><Day>8</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>8</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>8</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>8</Month><Day>28</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20798833</ArticleId><ArticleId IdType="pmc">PMC2928325</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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