Shedding light on the role of photosynthesis in pathogen colonization and host defense
Identifieur interne : 000A03 ( Pmc/Corpus ); précédent : 000A02; suivant : 000A04Shedding 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
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PubMed: 20798833
PubMed Central: 2928325
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<record><TEI><teiHeader><fileDesc><titleStmt><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>
<affiliation><nlm:aff id="A1"> Molecular Biology Division; Instituto de Biología Molecular y Celular de Rosario; Consejo Nacional de Investigaciones Científicas y Técnicas; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="A2"> Consejo de Investigaciones de la Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Thomas, Ludivine" sort="Thomas, Ludivine" uniqKey="Thomas L" first="Ludivine" last="Thomas">Ludivine Thomas</name>
<affiliation><nlm:aff id="A3"> Department of Biotechnology; University of the western Cape; Bellville, South Africa</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Gottig, Natalia" sort="Gottig, Natalia" uniqKey="Gottig N" first="Natalia" last="Gottig">Natalia Gottig</name>
<affiliation><nlm:aff id="A2"> Consejo de Investigaciones de la Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Zimaro, Tamara" sort="Zimaro, Tamara" uniqKey="Zimaro T" first="Tamara" last="Zimaro">Tamara Zimaro</name>
<affiliation><nlm:aff id="A1"> Molecular Biology Division; Instituto de Biología Molecular y Celular de Rosario; Consejo Nacional de Investigaciones Científicas y Técnicas; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
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<author><name sortKey="Garofalo, Cecilia G" sort="Garofalo, Cecilia G" uniqKey="Garofalo C" first="Cecilia G" last="Garofalo">Cecilia G. Garofalo</name>
<affiliation><nlm:aff id="A3"> Department of Biotechnology; University of the western Cape; Bellville, South Africa</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Gehring, Chris" sort="Gehring, Chris" uniqKey="Gehring C" first="Chris" last="Gehring">Chris Gehring</name>
<affiliation><nlm:aff id="A4"> CBRC; 4700 King Abdullah University of Science and Technology; Thuwal, Kingdom of Saudi Arabia</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Ottado, Jorgelina" sort="Ottado, Jorgelina" uniqKey="Ottado J" first="Jorgelina" last="Ottado">Jorgelina Ottado</name>
<affiliation><nlm:aff id="A1"> Molecular Biology Division; Instituto de Biología Molecular y Celular de Rosario; Consejo Nacional de Investigaciones Científicas y Técnicas; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
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<idno type="pmid">20798833</idno>
<idno type="pmc">2928325</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2928325</idno>
<idno type="RBID">PMC:2928325</idno>
<date when="2010">2010</date>
<idno type="wicri:Area/Pmc/Corpus">000A03</idno>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">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>
<affiliation><nlm:aff id="A1"> Molecular Biology Division; Instituto de Biología Molecular y Celular de Rosario; Consejo Nacional de Investigaciones Científicas y Técnicas; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="A2"> Consejo de Investigaciones de la Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Thomas, Ludivine" sort="Thomas, Ludivine" uniqKey="Thomas L" first="Ludivine" last="Thomas">Ludivine Thomas</name>
<affiliation><nlm:aff id="A3"> Department of Biotechnology; University of the western Cape; Bellville, South Africa</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Gottig, Natalia" sort="Gottig, Natalia" uniqKey="Gottig N" first="Natalia" last="Gottig">Natalia Gottig</name>
<affiliation><nlm:aff id="A2"> Consejo de Investigaciones de la Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Zimaro, Tamara" sort="Zimaro, Tamara" uniqKey="Zimaro T" first="Tamara" last="Zimaro">Tamara Zimaro</name>
<affiliation><nlm:aff id="A1"> Molecular Biology Division; Instituto de Biología Molecular y Celular de Rosario; Consejo Nacional de Investigaciones Científicas y Técnicas; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Garofalo, Cecilia G" sort="Garofalo, Cecilia G" uniqKey="Garofalo C" first="Cecilia G" last="Garofalo">Cecilia G. Garofalo</name>
<affiliation><nlm:aff id="A3"> Department of Biotechnology; University of the western Cape; Bellville, South Africa</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Gehring, Chris" sort="Gehring, Chris" uniqKey="Gehring C" first="Chris" last="Gehring">Chris Gehring</name>
<affiliation><nlm:aff id="A4"> CBRC; 4700 King Abdullah University of Science and Technology; Thuwal, Kingdom of Saudi Arabia</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Ottado, Jorgelina" sort="Ottado, Jorgelina" uniqKey="Ottado J" first="Jorgelina" last="Ottado">Jorgelina Ottado</name>
<affiliation><nlm:aff id="A1"> Molecular Biology Division; Instituto de Biología Molecular y Celular de Rosario; Consejo Nacional de Investigaciones Científicas y Técnicas; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; Rosario, Argentina</nlm:aff>
</affiliation>
</author>
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<series><title level="j">Communicative & Integrative Biology</title>
<idno type="eISSN">1942-0889</idno>
<imprint><date when="2010">2010</date>
</imprint>
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<front><div type="abstract" xml:lang="en"><p>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 <italic>Xanthomonas axonopodis</italic>
pv. <italic>citri</italic>
, 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 <italic>XacPNP</italic>
deletion mutant (ΔXacPNP) 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 ΔXacPNP was achieved by the application of XacPNP or <italic>Citrus sinensis</italic>
PNP lending support to a case of molecular mimicry. Finally, given that ΔXacPNP infection is less successful than infection with the wild type, it appears that reducing photosynthesis is an effective plant defense mechanism against biotrophic pathogens.</p>
</div>
</front>
</TEI>
<pmc article-type="article-commentary"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Commun Integr Biol</journal-id>
<journal-id journal-id-type="publisher-id">CIB</journal-id>
<journal-title-group><journal-title>Communicative & Integrative Biology</journal-title>
</journal-title-group>
<issn pub-type="epub">1942-0889</issn>
<publisher><publisher-name>Landes Bioscience</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">20798833</article-id>
<article-id pub-id-type="pmc">2928325</article-id>
<article-id pub-id-type="publisher-id">1942-0889-3-4-24</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Article Addendum</subject>
</subj-group>
</article-categories>
<title-group><article-title>Shedding light on the role of photosynthesis in pathogen colonization and host defense</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Garavaglia</surname>
<given-names>Betiana S</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
<xref ref-type="aff" rid="A2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Thomas</surname>
<given-names>Ludivine</given-names>
</name>
<xref ref-type="aff" rid="A3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Gottig</surname>
<given-names>Natalia</given-names>
</name>
<xref ref-type="aff" rid="A2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Zimaro</surname>
<given-names>Tamara</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Garofalo</surname>
<given-names>Cecilia G</given-names>
</name>
<xref ref-type="aff" rid="A3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Gehring</surname>
<given-names>Chris</given-names>
</name>
<xref ref-type="aff" rid="A4">4</xref>
</contrib>
<contrib contrib-type="author" corresp="yes"><name><surname>Ottado</surname>
<given-names>Jorgelina</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<aff id="A1"><label>1</label>
Molecular Biology Division; Instituto de Biología Molecular y Celular de Rosario; Consejo Nacional de Investigaciones Científicas y Técnicas; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; Rosario, Argentina</aff>
<aff id="A2"><label>2</label>
Consejo de Investigaciones de la Universidad Nacional de Rosario; Rosario, Argentina</aff>
<aff id="A3"><label>3</label>
Department of Biotechnology; University of the western Cape; Bellville, South Africa</aff>
<aff id="A4"><label>4</label>
CBRC; 4700 King Abdullah University of Science and Technology; Thuwal, Kingdom of Saudi Arabia</aff>
</contrib-group>
<author-notes><corresp>Correspondence to: Jorgelina Ottado; Email: <email>ottado@ibr.gov.ar</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><season>Jul-Aug</season>
<year>2010</year>
</pub-date>
<volume>3</volume>
<issue>4</issue>
<fpage>382</fpage>
<lpage>384</lpage>
<history><date date-type="received"><day>7</day>
<month>4</month>
<year>2010</year>
</date>
<date date-type="accepted"><day>8</day>
<month>4</month>
<year>2010</year>
</date>
</history>
<permissions><copyright-statement>© 2010 Landes Bioscience</copyright-statement>
<copyright-year>2010</copyright-year>
</permissions>
<abstract><p>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 <italic>Xanthomonas axonopodis</italic>
pv. <italic>citri</italic>
, 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 <italic>XacPNP</italic>
deletion mutant (ΔXacPNP) 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 ΔXacPNP was achieved by the application of XacPNP or <italic>Citrus sinensis</italic>
PNP lending support to a case of molecular mimicry. Finally, given that ΔXacPNP infection is less successful than infection with the wild type, it appears that reducing photosynthesis is an effective plant defense mechanism against biotrophic pathogens.</p>
</abstract>
<kwd-group><title>Key words</title>
<kwd>plant-pathogen interaction</kwd>
<kwd>plant natriuretic peptide</kwd>
<kwd>citrus canker</kwd>
<kwd>Xanthomonas</kwd>
<kwd>photosynthetic efficiency</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>
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