Relationships between microbial community structure and soil processes under elevated atmospheric carbon dioxide.
Identifieur interne : 003D32 ( Main/Exploration ); précédent : 003D31; suivant : 003D33Relationships between microbial community structure and soil processes under elevated atmospheric carbon dioxide.
Auteurs : David A. Lipson [États-Unis] ; Michelle Blair ; Greg Barron-Gafford ; Kathrine Grieve ; Ramesh MurthySource :
- Microbial ecology [ 0095-3628 ] ; 2006.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Populus.
- génétique : ARN ribosomique 16S.
- métabolisme : Dioxyde de carbone.
- Biodiversité, Biomasse, Climat, Microbiologie du sol, Phylogenèse, Sol, Écologie.
English descriptors
- KwdEn :
- MESH :
- chemical , genetics : RNA, Ribosomal, 16S.
- chemical , metabolism : Carbon Dioxide.
- growth & development : Populus.
- Biodiversity, Biomass, Climate, Ecology, Phylogeny, Soil, Soil Microbiology.
Abstract
There is little current understanding of the relationship between soil microbial community composition and soil processes rates, nor of the effect climate change and elevated CO(2) will have on microbial communities and their functioning. Using the eastern cottonwood (Populus deltoides) plantation at the Biosphere 2 Laboratory, we studied the relationships between microbial community structure and process rates, and the effects of elevated atmospheric CO(2) on microbial biomass, activity, and community structure. Soils were sampled from three treatments (400, 800, and 1200 ppm CO(2)), a variety of microbial biomass and activity parameters were measured, and the bacterial community was described by 16S rRNA libraries. Glucose substrate-induced respiration (SIR) was significantly higher in the 1200 ppm CO(2) treatment. There were also a variety of complex, nonlinear responses to elevated CO(2). There was no consistent effect of elevated CO(2) on bacterial diversity; however, there was extensive variation in microbial community structure within the plantation. The southern ends of the 800 and 1200 ppm CO(2) bays were dominated by beta-Proteobacteria, and had higher fungal biomass, whereas the other areas contained more alpha-Proteobacteria and Acidobacteria. A number of soil process rates, including salicylate, glutamate, and glycine substrate-induced respiration and proteolysis, were significantly related to the relative abundance of the three most frequent bacterial taxa, and to fungal biomass. Overall, variation in microbial activity was better explained by microbial community composition than by CO(2) treatment. However, the altered diversity and activity in the southern bays of the two high CO(2) treatments could indicate an interaction between CO(2) and light.
DOI: 10.1007/s00248-006-9032-1
PubMed: 16598634
Affiliations:
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Lipson</name><affiliation wicri:level="2"><nlm:affiliation>Department of Biology, San Diego State University, San Diego, CA 92182-4614, USA. dlipson@sciences.sdsu.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biology, San Diego State University, San Diego, CA 92182-4614</wicri:regionArea><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Blair, Michelle" sort="Blair, Michelle" uniqKey="Blair M" first="Michelle" last="Blair">Michelle Blair</name></author><author><name sortKey="Barron Gafford, Greg" sort="Barron Gafford, Greg" uniqKey="Barron Gafford G" first="Greg" last="Barron-Gafford">Greg Barron-Gafford</name></author><author><name sortKey="Grieve, Kathrine" sort="Grieve, Kathrine" uniqKey="Grieve K" first="Kathrine" last="Grieve">Kathrine Grieve</name></author><author><name sortKey="Murthy, Ramesh" sort="Murthy, Ramesh" uniqKey="Murthy R" first="Ramesh" last="Murthy">Ramesh Murthy</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2006">2006</date><idno type="RBID">pubmed:16598634</idno><idno type="pmid">16598634</idno><idno type="doi">10.1007/s00248-006-9032-1</idno><idno type="wicri:Area/Main/Corpus">003E33</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003E33</idno><idno type="wicri:Area/Main/Curation">003E33</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003E33</idno><idno type="wicri:Area/Main/Exploration">003E33</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Relationships between microbial community structure and soil processes under elevated atmospheric carbon dioxide.</title><author><name sortKey="Lipson, David A" sort="Lipson, David A" uniqKey="Lipson D" first="David A" last="Lipson">David A. 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Using the eastern cottonwood (Populus deltoides) plantation at the Biosphere 2 Laboratory, we studied the relationships between microbial community structure and process rates, and the effects of elevated atmospheric CO(2) on microbial biomass, activity, and community structure. Soils were sampled from three treatments (400, 800, and 1200 ppm CO(2)), a variety of microbial biomass and activity parameters were measured, and the bacterial community was described by 16S rRNA libraries. Glucose substrate-induced respiration (SIR) was significantly higher in the 1200 ppm CO(2) treatment. There were also a variety of complex, nonlinear responses to elevated CO(2). There was no consistent effect of elevated CO(2) on bacterial diversity; however, there was extensive variation in microbial community structure within the plantation. The southern ends of the 800 and 1200 ppm CO(2) bays were dominated by beta-Proteobacteria, and had higher fungal biomass, whereas the other areas contained more alpha-Proteobacteria and Acidobacteria. A number of soil process rates, including salicylate, glutamate, and glycine substrate-induced respiration and proteolysis, were significantly related to the relative abundance of the three most frequent bacterial taxa, and to fungal biomass. Overall, variation in microbial activity was better explained by microbial community composition than by CO(2) treatment. However, the altered diversity and activity in the southern bays of the two high CO(2) treatments could indicate an interaction between CO(2) and light.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16598634</PMID><DateCompleted><Year>2006</Year><Month>08</Month><Day>10</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0095-3628</ISSN><JournalIssue CitedMedium="Print"><Volume>51</Volume><Issue>3</Issue><PubDate><Year>2006</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Microbial ecology</Title><ISOAbbreviation>Microb Ecol</ISOAbbreviation></Journal><ArticleTitle>Relationships between microbial community structure and soil processes under elevated atmospheric carbon dioxide.</ArticleTitle><Pagination><MedlinePgn>302-14</MedlinePgn></Pagination><Abstract><AbstractText>There is little current understanding of the relationship between soil microbial community composition and soil processes rates, nor of the effect climate change and elevated CO(2) will have on microbial communities and their functioning. Using the eastern cottonwood (Populus deltoides) plantation at the Biosphere 2 Laboratory, we studied the relationships between microbial community structure and process rates, and the effects of elevated atmospheric CO(2) on microbial biomass, activity, and community structure. Soils were sampled from three treatments (400, 800, and 1200 ppm CO(2)), a variety of microbial biomass and activity parameters were measured, and the bacterial community was described by 16S rRNA libraries. Glucose substrate-induced respiration (SIR) was significantly higher in the 1200 ppm CO(2) treatment. There were also a variety of complex, nonlinear responses to elevated CO(2). There was no consistent effect of elevated CO(2) on bacterial diversity; however, there was extensive variation in microbial community structure within the plantation. The southern ends of the 800 and 1200 ppm CO(2) bays were dominated by beta-Proteobacteria, and had higher fungal biomass, whereas the other areas contained more alpha-Proteobacteria and Acidobacteria. A number of soil process rates, including salicylate, glutamate, and glycine substrate-induced respiration and proteolysis, were significantly related to the relative abundance of the three most frequent bacterial taxa, and to fungal biomass. Overall, variation in microbial activity was better explained by microbial community composition than by CO(2) treatment. However, the altered diversity and activity in the southern bays of the two high CO(2) treatments could indicate an interaction between CO(2) and light.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Lipson</LastName><ForeName>David A</ForeName><Initials>DA</Initials><AffiliationInfo><Affiliation>Department of Biology, San Diego State University, San Diego, CA 92182-4614, USA. dlipson@sciences.sdsu.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Blair</LastName><ForeName>Michelle</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Barron-Gafford</LastName><ForeName>Greg</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Grieve</LastName><ForeName>Kathrine</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Murthy</LastName><ForeName>Ramesh</ForeName><Initials>R</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2006</Year><Month>04</Month><Day>06</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Microb Ecol</MedlineTA><NlmUniqueID>7500663</NlmUniqueID><ISSNLinking>0095-3628</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012336">RNA, Ribosomal, 16S</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>142M471B3J</RegistryNumber><NameOfSubstance UI="D002245">Carbon Dioxide</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D044822" MajorTopicYN="N">Biodiversity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002245" MajorTopicYN="N">Carbon Dioxide</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002980" MajorTopicYN="N">Climate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004463" MajorTopicYN="Y">Ecology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="N">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012336" MajorTopicYN="N">RNA, Ribosomal, 16S</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" 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Grieve</name><name sortKey="Murthy, Ramesh" sort="Murthy, Ramesh" uniqKey="Murthy R" first="Ramesh" last="Murthy">Ramesh Murthy</name></noCountry><country name="États-Unis"><region name="Californie"><name sortKey="Lipson, David A" sort="Lipson, David A" uniqKey="Lipson D" first="David A" last="Lipson">David A. 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