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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Arbuscular mycorrhizal symbiosis increases relative apoplastic water flow in roots of the host plant under both well-watered and drought stress conditions</title><author><name sortKey="Barzana, Gloria" sort="Barzana, Gloria" uniqKey="Barzana G" first="Gloria" last="Bárzana">Gloria Bárzana</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Aroca, Ricardo" sort="Aroca, Ricardo" uniqKey="Aroca R" first="Ricardo" last="Aroca">Ricardo Aroca</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Paz, Jose Antonio" sort="Paz, Jose Antonio" uniqKey="Paz J" first="José Antonio" last="Paz">José Antonio Paz</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Chaumont, Francois" sort="Chaumont, Francois" uniqKey="Chaumont F" first="François" last="Chaumont">François Chaumont</name><affiliation><nlm:aff id="af2"><addr-line>Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud 4-15, B-1348, Louvain-la-Neuve, Belgium</addr-line></nlm:aff></affiliation></author><author><name sortKey="Martinez Ballesta, Mari Carmen" sort="Martinez Ballesta, Mari Carmen" uniqKey="Martinez Ballesta M" first="Mari Carmen" last="Martinez-Ballesta">Mari Carmen Martinez-Ballesta</name><affiliation><nlm:aff id="af3"><addr-line>Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Department of Plant Nutrition, PO Box 164, Campus de Espinardo 30100-Murcia, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Carvajal, Micaela" sort="Carvajal, Micaela" uniqKey="Carvajal M" first="Micaela" last="Carvajal">Micaela Carvajal</name><affiliation><nlm:aff id="af3"><addr-line>Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Department of Plant Nutrition, PO Box 164, Campus de Espinardo 30100-Murcia, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Ruiz Lozano, Juan Manuel" sort="Ruiz Lozano, Juan Manuel" uniqKey="Ruiz Lozano J" first="Juan Manuel" last="Ruiz-Lozano">Juan Manuel Ruiz-Lozano</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22294476</idno><idno type="pmc">3310489</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3310489</idno><idno type="RBID">PMC:3310489</idno><idno type="doi">10.1093/aob/mcs007</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">000126</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000126</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Arbuscular mycorrhizal symbiosis increases relative apoplastic water flow in roots of the host plant under both well-watered and drought stress conditions</title><author><name sortKey="Barzana, Gloria" sort="Barzana, Gloria" uniqKey="Barzana G" first="Gloria" last="Bárzana">Gloria Bárzana</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Aroca, Ricardo" sort="Aroca, Ricardo" uniqKey="Aroca R" first="Ricardo" last="Aroca">Ricardo Aroca</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Paz, Jose Antonio" sort="Paz, Jose Antonio" uniqKey="Paz J" first="José Antonio" last="Paz">José Antonio Paz</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Chaumont, Francois" sort="Chaumont, Francois" uniqKey="Chaumont F" first="François" last="Chaumont">François Chaumont</name><affiliation><nlm:aff id="af2"><addr-line>Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud 4-15, B-1348, Louvain-la-Neuve, Belgium</addr-line></nlm:aff></affiliation></author><author><name sortKey="Martinez Ballesta, Mari Carmen" sort="Martinez Ballesta, Mari Carmen" uniqKey="Martinez Ballesta M" first="Mari Carmen" last="Martinez-Ballesta">Mari Carmen Martinez-Ballesta</name><affiliation><nlm:aff id="af3"><addr-line>Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Department of Plant Nutrition, PO Box 164, Campus de Espinardo 30100-Murcia, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Carvajal, Micaela" sort="Carvajal, Micaela" uniqKey="Carvajal M" first="Micaela" last="Carvajal">Micaela Carvajal</name><affiliation><nlm:aff id="af3"><addr-line>Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Department of Plant Nutrition, PO Box 164, Campus de Espinardo 30100-Murcia, Spain</addr-line></nlm:aff></affiliation></author><author><name sortKey="Ruiz Lozano, Juan Manuel" sort="Ruiz Lozano, Juan Manuel" uniqKey="Ruiz Lozano J" first="Juan Manuel" last="Ruiz-Lozano">Juan Manuel Ruiz-Lozano</name><affiliation><nlm:aff id="af1"><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></nlm:aff></affiliation></author></analytic><series><title level="j">Annals of Botany</title><idno type="ISSN">0305-7364</idno><idno type="eISSN">1095-8290</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background and Aims</title><p>The movement of water through mycorrhizal fungal tissues and between the fungus and roots is little understood. It has been demonstrated that arbuscular mycorrhizal (AM) symbiosis regulates root hydraulic properties, including root hydraulic conductivity. However, it is not clear whether this effect is due to a regulation of root aquaporins (cell-to-cell pathway) or to enhanced apoplastic water flow. Here we measured the relative contributions of the apoplastic versus the cell-to-cell pathway for water movement in roots of AM and non-AM plants.</p></sec><sec><title>Methods</title><p>We used a combination of two experiments using the apoplastic tracer dye light green SF yellowish and sodium azide as an inhibitor of aquaporin activity. Plant water and physiological status, root hydraulic conductivity and apoplastic water flow were measured.</p></sec><sec><title>Key Results</title><p>Roots of AM plants enhanced significantly relative apoplastic water flow as compared with non-AM plants and this increase was evident under both well-watered and drought stress conditions. The presence of the AM fungus in the roots of the host plants was able to modulate the switching between apoplastic and cell-to-cell water transport pathways.</p></sec><sec><title>Conclusions</title><p>The ability of AM plants to switch between water transport pathways could allow a higher flexibility in the response of these plants to water shortage according to the demand from the shoot.</p></sec></div></front></TEI><pmc article-type="research-article"><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">Ann Bot</journal-id><journal-id journal-id-type="iso-abbrev">Ann. Bot</journal-id><journal-id journal-id-type="publisher-id">annbot</journal-id><journal-id journal-id-type="hwp">annbot</journal-id><journal-title-group><journal-title>Annals of Botany</journal-title></journal-title-group><issn pub-type="ppub">0305-7364</issn><issn pub-type="epub">1095-8290</issn><publisher><publisher-name>Oxford University Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">22294476</article-id><article-id pub-id-type="pmc">3310489</article-id><article-id pub-id-type="doi">10.1093/aob/mcs007</article-id><article-id pub-id-type="publisher-id">mcs007</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Articles</subject></subj-group></article-categories><title-group><article-title>Arbuscular mycorrhizal symbiosis increases relative apoplastic water flow in roots of the host plant under both well-watered and drought stress conditions</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Bárzana</surname><given-names>Gloria</given-names></name><xref ref-type="aff" rid="af1">1</xref></contrib><contrib contrib-type="author"><name><surname>Aroca</surname><given-names>Ricardo</given-names></name><xref ref-type="aff" rid="af1">1</xref></contrib><contrib contrib-type="author"><name><surname>Paz</surname><given-names>José Antonio</given-names></name><xref ref-type="aff" rid="af1">1</xref></contrib><contrib contrib-type="author"><name><surname>Chaumont</surname><given-names>François</given-names></name><xref ref-type="aff" rid="af2">2</xref></contrib><contrib contrib-type="author"><name><surname>Martinez-Ballesta</surname><given-names>Mari Carmen</given-names></name><xref ref-type="aff" rid="af3">3</xref></contrib><contrib contrib-type="author"><name><surname>Carvajal</surname><given-names>Micaela</given-names></name><xref ref-type="aff" rid="af3">3</xref></contrib><contrib contrib-type="author"><name><surname>Ruiz-Lozano</surname><given-names>Juan Manuel</given-names></name><xref ref-type="aff" rid="af1">1</xref><xref ref-type="corresp" rid="cor1">*</xref></contrib></contrib-group><aff id="af1"><label>1</label><addr-line>Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (EEZ-CSIC), Profesor Albareda no. 1, 18008 Granada, Spain</addr-line></aff><aff id="af2"><label>2</label><addr-line>Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud 4-15, B-1348, Louvain-la-Neuve, Belgium</addr-line></aff><aff id="af3"><label>3</label><addr-line>Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Department of Plant Nutrition, PO Box 164, Campus de Espinardo 30100-Murcia, Spain</addr-line></aff><author-notes><corresp id="cor1"><label>*</label>For correspondence. E-mail <email>juanmanuel.ruiz@eez.csic.es</email></corresp></author-notes><pub-date pub-type="ppub"><month>4</month><year>2012</year></pub-date><pub-date pub-type="epub"><day>31</day><month>1</month><year>2012</year></pub-date><volume>109</volume><issue>5</issue><fpage>1009</fpage><lpage>1017</lpage><history><date date-type="received"><day>23</day><month>9</month><year>2011</year></date><date date-type="rev-request"><day>21</day><month>11</month><year>2011</year></date><date date-type="accepted"><day>19</day><month>12</month><year>2011</year></date></history><permissions><copyright-statement>© The Author 2012. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com</copyright-statement><copyright-year>2012</copyright-year></permissions><self-uri content-type="pdf" xlink:type="simple" xlink:href="mcs007.pdf"></self-uri><abstract><sec><title>Background and Aims</title><p>The movement of water through mycorrhizal fungal tissues and between the fungus and roots is little understood. It has been demonstrated that arbuscular mycorrhizal (AM) symbiosis regulates root hydraulic properties, including root hydraulic conductivity. However, it is not clear whether this effect is due to a regulation of root aquaporins (cell-to-cell pathway) or to enhanced apoplastic water flow. Here we measured the relative contributions of the apoplastic versus the cell-to-cell pathway for water movement in roots of AM and non-AM plants.</p></sec><sec><title>Methods</title><p>We used a combination of two experiments using the apoplastic tracer dye light green SF yellowish and sodium azide as an inhibitor of aquaporin activity. Plant water and physiological status, root hydraulic conductivity and apoplastic water flow were measured.</p></sec><sec><title>Key Results</title><p>Roots of AM plants enhanced significantly relative apoplastic water flow as compared with non-AM plants and this increase was evident under both well-watered and drought stress conditions. The presence of the AM fungus in the roots of the host plants was able to modulate the switching between apoplastic and cell-to-cell water transport pathways.</p></sec><sec><title>Conclusions</title><p>The ability of AM plants to switch between water transport pathways could allow a higher flexibility in the response of these plants to water shortage according to the demand from the shoot.</p></sec></abstract><kwd-group><kwd>Apoplastic pathway</kwd><kwd>arbuscular mycorrhiza</kwd><kwd>cell-to-cell pathway</kwd><kwd>drought</kwd><kwd>root hydraulic conductivity</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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