Foliar endophytic fungi alter patterns of nitrogen uptake and distribution in Theobroma cacao.
Identifieur interne : 000509 ( Main/Exploration ); précédent : 000508; suivant : 000510Foliar endophytic fungi alter patterns of nitrogen uptake and distribution in Theobroma cacao.
Auteurs : Natalie Christian [États-Unis] ; Edward Allen Herre [États-Unis] ; Keith Clay [États-Unis]Source :
- The New phytologist [ 1469-8137 ] ; 2019.
Descripteurs français
- KwdFr :
- MESH :
- microbiologie : Cacaoyer, Feuilles de plante.
- métabolisme : Azote, Cacaoyer.
- physiologie : Colletotrichum, Endophytes.
- Biomasse, Isotopes de l'azote, Modèles linéaires, Phytophthora.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Nitrogen.
- metabolism : Cacao.
- microbiology : Cacao, Plant Leaves.
- physiology : Colletotrichum, Endophytes.
- Biomass, Linear Models, Nitrogen Isotopes, Phytophthora.
Abstract
Colonization by foliar endophytic fungi can affect the expression of host plant defenses and other ecologically important traits. However, whether endophyte colonization affects the uptake or redistribution of resources within and among host plant tissues remains unstudied. We inoculated leaves of Theobroma cacao with four common colonizers that range in their effect from protective to pathogenic (Colletotrichum tropicale, Pestalotiopsis sp., Colletotrichum theobromicola, or Phytophthora palmivora). We pulsed the soil with nitrogen-15 (15 N) and then traced 15 N uptake and its subsequent distribution to whole plants and individual leaves. At a whole-plant level, C. tropicale-inoculated plants showed significantly greater 15 N uptake than endophyte-free plants did in the same pot. Among leaves within plants, younger leaves were particularly enriched in 15 N, but endophyte inoculation at the individual leaf level did not alter 15 N distribution within plants. However, leaves co-inoculated with pathogenic Phytophthora and protective C. tropicale experienced significantly elevated 15 N content as pathogen damage increased, compared with leaves inoculated only with the pathogen. Further, endophyte-pathogen co-infection also increased total plant biomass. Our results indicate that colonization by foliar endophytes significantly affects N uptake and distribution among and within host plants in ways that appear to be context dependent on other microbiome components.
DOI: 10.1111/nph.15693
PubMed: 30664252
Affiliations:
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Goodwin Ave., Urbana, IL, 61801, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Plant Biology, School of Integrative Biology, University of Illinois, 505 S. Goodwin Ave., Urbana, IL, 61801</wicri:regionArea><wicri:noRegion>61801</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:affiliation>Evolution, Ecology and Behavior Program, Department of Biology, Indiana University, 1001 E. 3rd St., Bloomington, IN, 47405, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Evolution, Ecology and Behavior Program, Department of Biology, Indiana University, 1001 E. 3rd St., Bloomington, IN, 47405</wicri:regionArea><wicri:noRegion>47405</wicri:noRegion></affiliation></author><author><name sortKey="Herre, Edward Allen" sort="Herre, Edward Allen" uniqKey="Herre E" first="Edward Allen" last="Herre">Edward Allen Herre</name><affiliation wicri:level="1"><nlm:affiliation>Smithsonian Tropical Research Institute, Unit 9100 Box 0948, Miami, FL, 34002-9998, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Smithsonian Tropical Research Institute, Unit 9100 Box 0948, Miami, FL, 34002-9998</wicri:regionArea><wicri:noRegion>34002-9998</wicri:noRegion></affiliation></author><author><name sortKey="Clay, Keith" sort="Clay, Keith" uniqKey="Clay K" first="Keith" last="Clay">Keith Clay</name><affiliation wicri:level="1"><nlm:affiliation>Evolution, Ecology and Behavior Program, Department of Biology, Indiana University, 1001 E. 3rd St., Bloomington, IN, 47405, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Evolution, Ecology and Behavior Program, Department of Biology, Indiana University, 1001 E. 3rd St., Bloomington, IN, 47405</wicri:regionArea><wicri:noRegion>47405</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:affiliation>Department of Ecology and Evolutionary Biology, Tulane University, 6823 St Charles Ave., New Orleans, LA, 70118, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Ecology and Evolutionary Biology, Tulane University, 6823 St Charles Ave., New Orleans, LA, 70118</wicri:regionArea><wicri:noRegion>70118</wicri:noRegion></affiliation></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomass (MeSH)</term><term>Cacao (metabolism)</term><term>Cacao (microbiology)</term><term>Colletotrichum (physiology)</term><term>Endophytes (physiology)</term><term>Linear Models (MeSH)</term><term>Nitrogen (metabolism)</term><term>Nitrogen Isotopes (MeSH)</term><term>Phytophthora (MeSH)</term><term>Plant Leaves (microbiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Azote (métabolisme)</term><term>Biomasse (MeSH)</term><term>Cacaoyer (microbiologie)</term><term>Cacaoyer (métabolisme)</term><term>Colletotrichum (physiologie)</term><term>Endophytes (physiologie)</term><term>Feuilles de plante (microbiologie)</term><term>Isotopes de l'azote (MeSH)</term><term>Modèles linéaires (MeSH)</term><term>Phytophthora (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Nitrogen</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Cacao</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Cacaoyer</term><term>Feuilles de plante</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Cacao</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Azote</term><term>Cacaoyer</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Colletotrichum</term><term>Endophytes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Colletotrichum</term><term>Endophytes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>Linear Models</term><term>Nitrogen Isotopes</term><term>Phytophthora</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Biomasse</term><term>Isotopes de l'azote</term><term>Modèles linéaires</term><term>Phytophthora</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Colonization by foliar endophytic fungi can affect the expression of host plant defenses and other ecologically important traits. However, whether endophyte colonization affects the uptake or redistribution of resources within and among host plant tissues remains unstudied. We inoculated leaves of Theobroma cacao with four common colonizers that range in their effect from protective to pathogenic (Colletotrichum tropicale, Pestalotiopsis sp., Colletotrichum theobromicola, or Phytophthora palmivora). We pulsed the soil with nitrogen-15 (<sup>15</sup> N) and then traced <sup>15</sup> N uptake and its subsequent distribution to whole plants and individual leaves. At a whole-plant level, C. tropicale-inoculated plants showed significantly greater <sup>15</sup> N uptake than endophyte-free plants did in the same pot. Among leaves within plants, younger leaves were particularly enriched in <sup>15</sup> N, but endophyte inoculation at the individual leaf level did not alter <sup>15</sup> N distribution within plants. However, leaves co-inoculated with pathogenic Phytophthora and protective C. tropicale experienced significantly elevated <sup>15</sup> N content as pathogen damage increased, compared with leaves inoculated only with the pathogen. Further, endophyte-pathogen co-infection also increased total plant biomass. Our results indicate that colonization by foliar endophytes significantly affects N uptake and distribution among and within host plants in ways that appear to be context dependent on other microbiome components.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">30664252</PMID><DateCompleted><Year>2020</Year><Month>02</Month><Day>27</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>222</Volume><Issue>3</Issue><PubDate><Year>2019</Year><Month>05</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Foliar endophytic fungi alter patterns of nitrogen uptake and distribution in Theobroma cacao.</ArticleTitle><Pagination><MedlinePgn>1573-1583</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/nph.15693</ELocationID><Abstract><AbstractText>Colonization by foliar endophytic fungi can affect the expression of host plant defenses and other ecologically important traits. However, whether endophyte colonization affects the uptake or redistribution of resources within and among host plant tissues remains unstudied. We inoculated leaves of Theobroma cacao with four common colonizers that range in their effect from protective to pathogenic (Colletotrichum tropicale, Pestalotiopsis sp., Colletotrichum theobromicola, or Phytophthora palmivora). We pulsed the soil with nitrogen-15 (<sup>15</sup> N) and then traced <sup>15</sup> N uptake and its subsequent distribution to whole plants and individual leaves. At a whole-plant level, C. tropicale-inoculated plants showed significantly greater <sup>15</sup> N uptake than endophyte-free plants did in the same pot. Among leaves within plants, younger leaves were particularly enriched in <sup>15</sup> N, but endophyte inoculation at the individual leaf level did not alter <sup>15</sup> N distribution within plants. However, leaves co-inoculated with pathogenic Phytophthora and protective C. tropicale experienced significantly elevated <sup>15</sup> N content as pathogen damage increased, compared with leaves inoculated only with the pathogen. Further, endophyte-pathogen co-infection also increased total plant biomass. Our results indicate that colonization by foliar endophytes significantly affects N uptake and distribution among and within host plants in ways that appear to be context dependent on other microbiome components.</AbstractText><CopyrightInformation>© 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Christian</LastName><ForeName>Natalie</ForeName><Initials>N</Initials><Identifier Source="ORCID">0000-0003-1568-7645</Identifier><AffiliationInfo><Affiliation>Department of Plant Biology, School of Integrative Biology, University of Illinois, 505 S. Goodwin Ave., Urbana, IL, 61801, USA.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Evolution, Ecology and Behavior Program, Department of Biology, Indiana University, 1001 E. 3rd St., Bloomington, IN, 47405, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Herre</LastName><ForeName>Edward Allen</ForeName><Initials>EA</Initials><AffiliationInfo><Affiliation>Smithsonian Tropical Research Institute, Unit 9100 Box 0948, Miami, FL, 34002-9998, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Clay</LastName><ForeName>Keith</ForeName><Initials>K</Initials><Identifier Source="ORCID">0000-0002-3956-0887</Identifier><AffiliationInfo><Affiliation>Evolution, Ecology and Behavior Program, Department of Biology, Indiana University, 1001 E. 3rd St., Bloomington, IN, 47405, USA.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Department of Ecology and Evolutionary Biology, Tulane University, 6823 St Charles Ave., New Orleans, LA, 70118, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><Agency>National Science Foundation (NSF) Graduate Research Fellowship</Agency><Country>International</Country></Grant><Grant><Agency>NSF Graduate Research Internship Program</Agency><Country>International</Country></Grant><Grant><Agency>NSF Doctoral Dissertation Improvement Grant</Agency><Country>International</Country></Grant><Grant><Agency>Indiana University Graduate Sustainability Research Development Grant</Agency><Country>International</Country></Grant><Grant><GrantID>429440</GrantID><Agency>Simons Foundation</Agency><Country>International</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2019</Year><Month>02</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D009587">Nitrogen Isotopes</NameOfSubstance></Chemical><Chemical><RegistryNumber>N762921K75</RegistryNumber><NameOfSubstance UI="D009584">Nitrogen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002099" MajorTopicYN="N">Cacao</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D020231" MajorTopicYN="N">Colletotrichum</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D060026" MajorTopicYN="N">Endophytes</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016014" MajorTopicYN="N">Linear Models</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009587" MajorTopicYN="N">Nitrogen Isotopes</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010838" MajorTopicYN="N">Phytophthora</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Theobroma cacao
</Keyword><Keyword MajorTopicYN="Y">distribution</Keyword><Keyword MajorTopicYN="Y">endophytes</Keyword><Keyword MajorTopicYN="Y">mutualism</Keyword><Keyword MajorTopicYN="Y">nitrogen</Keyword><Keyword MajorTopicYN="Y">pathogen defense</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2018</Year><Month>10</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2019</Year><Month>01</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2019</Year><Month>1</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>2</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>1</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">30664252</ArticleId><ArticleId IdType="doi">10.1111/nph.15693</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Christian, Natalie" sort="Christian, Natalie" uniqKey="Christian N" first="Natalie" last="Christian">Natalie Christian</name></noRegion><name sortKey="Christian, Natalie" sort="Christian, Natalie" uniqKey="Christian N" first="Natalie" last="Christian">Natalie Christian</name><name sortKey="Clay, Keith" sort="Clay, Keith" uniqKey="Clay K" first="Keith" last="Clay">Keith Clay</name><name sortKey="Clay, Keith" sort="Clay, Keith" uniqKey="Clay K" first="Keith" last="Clay">Keith Clay</name><name sortKey="Herre, Edward Allen" sort="Herre, Edward Allen" uniqKey="Herre E" first="Edward Allen" last="Herre">Edward Allen Herre</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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