Feedbacks between plant N demand and rhizosphere priming depend on type of mycorrhizal association.
Identifieur interne : 000133 ( Main/Corpus ); précédent : 000132; suivant : 000134Feedbacks between plant N demand and rhizosphere priming depend on type of mycorrhizal association.
Auteurs : Benjamin N. Sulman ; Edward R. Brzostek ; Chiara Medici ; Elena Shevliakova ; Duncan N L. Menge ; Richard P. PhillipsSource :
- Ecology letters [ 1461-0248 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- chemical : Nitrogen, Soil.
- Mycorrhizae, Rhizosphere, Soil Microbiology, Trees.
Abstract
Ecosystem carbon (C) balance is hypothesised to be sensitive to the mycorrhizal strategies that plants use to acquire nutrients. To test this idea, we coupled an optimality-based plant nitrogen (N) acquisition model with a microbe-focused soil organic matter (SOM) model. The model accurately predicted rhizosphere processes and C-N dynamics across a gradient of stands varying in their relative abundance of arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) trees. When mycorrhizal dominance was switched - ECM trees dominating plots previously occupied by AM trees, and vice versa - legacy effects were apparent, with consequences for both C and N stocks in soil. Under elevated productivity, ECM trees enhanced decomposition more than AM trees via microbial priming of unprotected SOM. Collectively, our results show that ecosystem responses to global change may hinge on the balance between rhizosphere priming and SOM protection, and highlight the importance of dynamically linking plants and microbes in terrestrial biosphere models.
DOI: 10.1111/ele.12802
PubMed: 28669138
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Brzostek</name><affiliation><nlm:affiliation>Department of Biology, West Virginia University, Morgantown, WV, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Medici, Chiara" sort="Medici, Chiara" uniqKey="Medici C" first="Chiara" last="Medici">Chiara Medici</name><affiliation><nlm:affiliation>Princeton Environmental Institute, Princeton University, Princeton, NJ, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Shevliakova, Elena" sort="Shevliakova, Elena" uniqKey="Shevliakova E" first="Elena" last="Shevliakova">Elena Shevliakova</name><affiliation><nlm:affiliation>NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Menge, Duncan N L" sort="Menge, Duncan N L" uniqKey="Menge D" first="Duncan N L" last="Menge">Duncan N L. Menge</name><affiliation><nlm:affiliation>Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, NY, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Phillips, Richard P" sort="Phillips, Richard P" uniqKey="Phillips R" first="Richard P" last="Phillips">Richard P. Phillips</name><affiliation><nlm:affiliation>Department of Biology, Indiana University, Bloomington, IN, USA.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2017">2017</date><idno type="RBID">pubmed:28669138</idno><idno type="pmid">28669138</idno><idno type="doi">10.1111/ele.12802</idno><idno type="wicri:Area/Main/Corpus">000133</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000133</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Feedbacks between plant N demand and rhizosphere priming depend on type of mycorrhizal association.</title><author><name sortKey="Sulman, Benjamin N" sort="Sulman, Benjamin N" uniqKey="Sulman B" first="Benjamin N" last="Sulman">Benjamin N. Sulman</name><affiliation><nlm:affiliation>Program in Atmospheric and Oceanic Sciences, Department of Geosciences, Princeton University, Princeton, New Jersey, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Brzostek, Edward R" sort="Brzostek, Edward R" uniqKey="Brzostek E" first="Edward R" last="Brzostek">Edward R. Brzostek</name><affiliation><nlm:affiliation>Department of Biology, West Virginia University, Morgantown, WV, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Medici, Chiara" sort="Medici, Chiara" uniqKey="Medici C" first="Chiara" last="Medici">Chiara Medici</name><affiliation><nlm:affiliation>Princeton Environmental Institute, Princeton University, Princeton, NJ, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Shevliakova, Elena" sort="Shevliakova, Elena" uniqKey="Shevliakova E" first="Elena" last="Shevliakova">Elena Shevliakova</name><affiliation><nlm:affiliation>NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Menge, Duncan N L" sort="Menge, Duncan N L" uniqKey="Menge D" first="Duncan N L" last="Menge">Duncan N L. Menge</name><affiliation><nlm:affiliation>Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, NY, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Phillips, Richard P" sort="Phillips, Richard P" uniqKey="Phillips R" first="Richard P" last="Phillips">Richard P. Phillips</name><affiliation><nlm:affiliation>Department of Biology, Indiana University, Bloomington, IN, USA.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Ecology letters</title><idno type="eISSN">1461-0248</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Mycorrhizae (MeSH)</term><term>Nitrogen (MeSH)</term><term>Rhizosphere (MeSH)</term><term>Soil (MeSH)</term><term>Soil Microbiology (MeSH)</term><term>Trees (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Nitrogen</term><term>Soil</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Mycorrhizae</term><term>Rhizosphere</term><term>Soil Microbiology</term><term>Trees</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Ecosystem carbon (C) balance is hypothesised to be sensitive to the mycorrhizal strategies that plants use to acquire nutrients. To test this idea, we coupled an optimality-based plant nitrogen (N) acquisition model with a microbe-focused soil organic matter (SOM) model. The model accurately predicted rhizosphere processes and C-N dynamics across a gradient of stands varying in their relative abundance of arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) trees. When mycorrhizal dominance was switched - ECM trees dominating plots previously occupied by AM trees, and vice versa - legacy effects were apparent, with consequences for both C and N stocks in soil. Under elevated productivity, ECM trees enhanced decomposition more than AM trees via microbial priming of unprotected SOM. Collectively, our results show that ecosystem responses to global change may hinge on the balance between rhizosphere priming and SOM protection, and highlight the importance of dynamically linking plants and microbes in terrestrial biosphere models.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">28669138</PMID><DateCompleted><Year>2017</Year><Month>12</Month><Day>08</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1461-0248</ISSN><JournalIssue CitedMedium="Internet"><Volume>20</Volume><Issue>8</Issue><PubDate><Year>2017</Year><Month>08</Month></PubDate></JournalIssue><Title>Ecology letters</Title><ISOAbbreviation>Ecol Lett</ISOAbbreviation></Journal><ArticleTitle>Feedbacks between plant N demand and rhizosphere priming depend on type of mycorrhizal association.</ArticleTitle><Pagination><MedlinePgn>1043-1053</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/ele.12802</ELocationID><Abstract><AbstractText>Ecosystem carbon (C) balance is hypothesised to be sensitive to the mycorrhizal strategies that plants use to acquire nutrients. To test this idea, we coupled an optimality-based plant nitrogen (N) acquisition model with a microbe-focused soil organic matter (SOM) model. The model accurately predicted rhizosphere processes and C-N dynamics across a gradient of stands varying in their relative abundance of arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) trees. When mycorrhizal dominance was switched - ECM trees dominating plots previously occupied by AM trees, and vice versa - legacy effects were apparent, with consequences for both C and N stocks in soil. Under elevated productivity, ECM trees enhanced decomposition more than AM trees via microbial priming of unprotected SOM. Collectively, our results show that ecosystem responses to global change may hinge on the balance between rhizosphere priming and SOM protection, and highlight the importance of dynamically linking plants and microbes in terrestrial biosphere models.</AbstractText><CopyrightInformation>© 2017 John Wiley & Sons Ltd/CNRS.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Sulman</LastName><ForeName>Benjamin N</ForeName><Initials>BN</Initials><AffiliationInfo><Affiliation>Program in Atmospheric and Oceanic Sciences, Department of Geosciences, Princeton University, Princeton, New Jersey, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Brzostek</LastName><ForeName>Edward R</ForeName><Initials>ER</Initials><AffiliationInfo><Affiliation>Department of Biology, West Virginia University, Morgantown, WV, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Medici</LastName><ForeName>Chiara</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Princeton Environmental Institute, Princeton University, Princeton, NJ, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Shevliakova</LastName><ForeName>Elena</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Menge</LastName><ForeName>Duncan N L</ForeName><Initials>DNL</Initials><AffiliationInfo><Affiliation>Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, NY, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Phillips</LastName><ForeName>Richard P</ForeName><Initials>RP</Initials><AffiliationInfo><Affiliation>Department of Biology, Indiana University, Bloomington, IN, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016422">Letter</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>07</Month><Day>02</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Ecol Lett</MedlineTA><NlmUniqueID>101121949</NlmUniqueID><ISSNLinking>1461-023X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>N762921K75</RegistryNumber><NameOfSubstance UI="D009584">Nitrogen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="Y">Mycorrhizae</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058441" MajorTopicYN="Y">Rhizosphere</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Biogeochemical model</Keyword><Keyword MajorTopicYN="Y">N-cycle feedbacks</Keyword><Keyword MajorTopicYN="Y">biogeochemistry</Keyword><Keyword MajorTopicYN="Y">carbon cycling</Keyword><Keyword MajorTopicYN="Y">forest productivity</Keyword><Keyword MajorTopicYN="Y">mycorrhizae</Keyword><Keyword MajorTopicYN="Y">plant-soil interactions</Keyword><Keyword MajorTopicYN="Y">soil carbon</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>03</Month><Day>28</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2017</Year><Month>05</Month><Day>12</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2017</Year><Month>06</Month><Day>05</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>7</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>12</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>7</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28669138</ArticleId><ArticleId IdType="doi">10.1111/ele.12802</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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