Microbial community composition and function beneath temperate trees exposed to elevated atmospheric carbon dioxide and ozone.
Identifieur interne : 004560 ( Main/Exploration ); précédent : 004559; suivant : 004561Microbial community composition and function beneath temperate trees exposed to elevated atmospheric carbon dioxide and ozone.
Auteurs : Rebecca L. Phillips [États-Unis] ; Donald R. Zak [États-Unis] ; William E. Holmes [États-Unis] ; David C. White [États-Unis]Source :
- Oecologia [ 1432-1939 ] ; 2002.
Abstract
We hypothesized that changes in plant growth resulting from atmospheric CO2 and O3 enrichment would alter the flow of C through soil food webs and that this effect would vary with tree species. To test this idea, we traced the course of C through the soil microbial community using soils from the free-air CO2 and O3 enrichment site in Rhinelander, Wisconsin. We added either 13C-labeled cellobiose or 13C-labeled N-acetylglucosamine to soils collected beneath ecologically distinct temperate trees exposed for 3 years to factorial CO2 (ambient and 200 µl l-1 above ambient) and O3 (ambient and 20 µl l-1 above ambient) treatments. For both labeled substrates, recovery of 13C in microbial respiration increased beneath plants grown under elevated CO2 by 29% compared to ambient; elevated O3 eliminated this effect. Production of 13C-CO2 from soils beneath aspen (Populus tremuloides Michx.) and aspen-birch (Betula papyrifera Marsh.) was greater than that beneath aspen-maple (Acer saccharum Marsh.). Phospholipid fatty acid analyses (13C-PLFAs) indicated that the microbial community beneath plants exposed to elevated CO2 metabolized more 13C-cellobiose, compared to the microbial community beneath plants exposed to the ambient condition. Recovery of 13C in PLFAs was an order of magnitude greater for N-acetylglucosamine-amended soil compared to cellobiose-amended soil, indicating that substrate type influenced microbial metabolism and soil C cycling. We found that elevated CO2 increased fungal activity and microbial metabolism of cellobiose, and that microbial processes under early-successional aspen and birch species were more strongly affected by CO2 and O3 enrichment than those under late-successional maple.
DOI: 10.1007/s00442-002-0868-x
PubMed: 28547691
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University Avenue, Ann Arbor, MI, 48109-1115</wicri:regionArea><wicri:noRegion>48109-1115</wicri:noRegion></affiliation></author><author><name sortKey="Holmes, William E" sort="Holmes, William E" uniqKey="Holmes W" first="William E" last="Holmes">William E. Holmes</name><affiliation wicri:level="1"><nlm:affiliation>School of Natural Resources and Environment, University of Michigan, 430 E. University Avenue, Ann Arbor, MI, 48109-1115, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>School of Natural Resources and Environment, University of Michigan, 430 E. University Avenue, Ann Arbor, MI, 48109-1115</wicri:regionArea><wicri:noRegion>48109-1115</wicri:noRegion></affiliation></author><author><name sortKey="White, David C" sort="White, David C" uniqKey="White D" first="David C" last="White">David C. White</name><affiliation wicri:level="1"><nlm:affiliation>Center for Environmental Biotechnology, University of Tennessee, 10 515 Research Drive, Knoxville, TN, 37996, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Center for Environmental Biotechnology, University of Tennessee, 10 515 Research Drive, Knoxville, TN, 37996</wicri:regionArea><wicri:noRegion>37996</wicri:noRegion></affiliation></author></analytic><series><title level="j">Oecologia</title><idno type="eISSN">1432-1939</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We hypothesized that changes in plant growth resulting from atmospheric CO<sub>2</sub> and O<sub>3</sub> enrichment would alter the flow of C through soil food webs and that this effect would vary with tree species. To test this idea, we traced the course of C through the soil microbial community using soils from the free-air CO<sub>2</sub> and O<sub>3</sub> enrichment site in Rhinelander, Wisconsin. We added either <sup>13</sup>C-labeled cellobiose or <sup>13</sup>C-labeled N-acetylglucosamine to soils collected beneath ecologically distinct temperate trees exposed for 3 years to factorial CO<sub>2</sub> (ambient and 200 µl l<sup>-1</sup> above ambient) and O<sub>3</sub> (ambient and 20 µl l<sup>-1</sup> above ambient) treatments. For both labeled substrates, recovery of <sup>13</sup>C in microbial respiration increased beneath plants grown under elevated CO<sub>2</sub> by 29% compared to ambient; elevated O<sub>3</sub> eliminated this effect. Production of <sup>13</sup>C-CO<sub>2</sub> from soils beneath aspen (Populus tremuloides Michx.) and aspen-birch (Betula papyrifera Marsh.) was greater than that beneath aspen-maple (Acer saccharum Marsh.). Phospholipid fatty acid analyses (<sup>13</sup>C-PLFAs) indicated that the microbial community beneath plants exposed to elevated CO<sub>2</sub> metabolized more <sup>13</sup>C-cellobiose, compared to the microbial community beneath plants exposed to the ambient condition. Recovery of <sup>13</sup>C in PLFAs was an order of magnitude greater for N-acetylglucosamine-amended soil compared to cellobiose-amended soil, indicating that substrate type influenced microbial metabolism and soil C cycling. We found that elevated CO<sub>2</sub> increased fungal activity and microbial metabolism of cellobiose, and that microbial processes under early-successional aspen and birch species were more strongly affected by CO<sub>2</sub> and O<sub>3</sub> enrichment than those under late-successional maple.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">28547691</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1939</ISSN><JournalIssue CitedMedium="Internet"><Volume>131</Volume><Issue>2</Issue><PubDate><Year>2002</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Oecologia</Title><ISOAbbreviation>Oecologia</ISOAbbreviation></Journal><ArticleTitle>Microbial community composition and function beneath temperate trees exposed to elevated atmospheric carbon dioxide and ozone.</ArticleTitle><Pagination><MedlinePgn>236-244</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00442-002-0868-x</ELocationID><Abstract><AbstractText>We hypothesized that changes in plant growth resulting from atmospheric CO<sub>2</sub> and O<sub>3</sub> enrichment would alter the flow of C through soil food webs and that this effect would vary with tree species. To test this idea, we traced the course of C through the soil microbial community using soils from the free-air CO<sub>2</sub> and O<sub>3</sub> enrichment site in Rhinelander, Wisconsin. We added either <sup>13</sup>C-labeled cellobiose or <sup>13</sup>C-labeled N-acetylglucosamine to soils collected beneath ecologically distinct temperate trees exposed for 3 years to factorial CO<sub>2</sub> (ambient and 200 µl l<sup>-1</sup> above ambient) and O<sub>3</sub> (ambient and 20 µl l<sup>-1</sup> above ambient) treatments. For both labeled substrates, recovery of <sup>13</sup>C in microbial respiration increased beneath plants grown under elevated CO<sub>2</sub> by 29% compared to ambient; elevated O<sub>3</sub> eliminated this effect. Production of <sup>13</sup>C-CO<sub>2</sub> from soils beneath aspen (Populus tremuloides Michx.) and aspen-birch (Betula papyrifera Marsh.) was greater than that beneath aspen-maple (Acer saccharum Marsh.). Phospholipid fatty acid analyses (<sup>13</sup>C-PLFAs) indicated that the microbial community beneath plants exposed to elevated CO<sub>2</sub> metabolized more <sup>13</sup>C-cellobiose, compared to the microbial community beneath plants exposed to the ambient condition. Recovery of <sup>13</sup>C in PLFAs was an order of magnitude greater for N-acetylglucosamine-amended soil compared to cellobiose-amended soil, indicating that substrate type influenced microbial metabolism and soil C cycling. We found that elevated CO<sub>2</sub> increased fungal activity and microbial metabolism of cellobiose, and that microbial processes under early-successional aspen and birch species were more strongly affected by CO<sub>2</sub> and O<sub>3</sub> enrichment than those under late-successional maple.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Phillips</LastName><ForeName>Rebecca L</ForeName><Initials>RL</Initials><AffiliationInfo><Affiliation>School of Natural Resources and Environment, University of Michigan, 430 E. University Avenue, Ann Arbor, MI, 48109-1115, USA. rebecca@aero.und.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zak</LastName><ForeName>Donald R</ForeName><Initials>DR</Initials><AffiliationInfo><Affiliation>School of Natural Resources and Environment, University of Michigan, 430 E. University Avenue, Ann Arbor, MI, 48109-1115, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Holmes</LastName><ForeName>William E</ForeName><Initials>WE</Initials><AffiliationInfo><Affiliation>School of Natural Resources and Environment, University of Michigan, 430 E. University Avenue, Ann Arbor, MI, 48109-1115, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>White</LastName><ForeName>David C</ForeName><Initials>DC</Initials><AffiliationInfo><Affiliation>Center for Environmental Biotechnology, University of Tennessee, 10 515 Research Drive, Knoxville, TN, 37996, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2002</Year><Month>04</Month><Day>01</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Oecologia</MedlineTA><NlmUniqueID>0150372</NlmUniqueID><ISSNLinking>0029-8549</ISSNLinking></MedlineJournalInfo><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Carbon-13-phospholipid fatty acid analysis</Keyword><Keyword MajorTopicYN="N">Elevated carbon dioxide</Keyword><Keyword MajorTopicYN="N">Elevated ozone</Keyword><Keyword MajorTopicYN="N">Soil carbon cycling</Keyword><Keyword MajorTopicYN="N">Soil microorganisms</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2001</Year><Month>08</Month><Day>01</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2001</Year><Month>12</Month><Day>13</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>5</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2002</Year><Month>4</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2002</Year><Month>4</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28547691</ArticleId><ArticleId IdType="doi">10.1007/s00442-002-0868-x</ArticleId><ArticleId IdType="pii">10.1007/s00442-002-0868-x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Phillips, Rebecca L" sort="Phillips, Rebecca L" uniqKey="Phillips R" first="Rebecca L" last="Phillips">Rebecca L. Phillips</name></noRegion><name sortKey="Holmes, William E" sort="Holmes, William E" uniqKey="Holmes W" first="William E" last="Holmes">William E. Holmes</name><name sortKey="White, David C" sort="White, David C" uniqKey="White D" first="David C" last="White">David C. White</name><name sortKey="Zak, Donald R" sort="Zak, Donald R" uniqKey="Zak D" first="Donald R" last="Zak">Donald R. Zak</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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