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dc.contributor.authorKelly, John J.en_US
dc.contributor.authorJanus, Lori R.en_US
dc.contributor.authorTuchman, Nancy C.en_US
dc.contributor.authorMcCormack, Johnen_US
dc.contributor.authorRier, Steven T.en_US
dc.contributor.authorAngeloni, Nicholas L.en_US
dc.date.accessioned2006-09-11T19:47:24Z
dc.date.available2006-09-11T19:47:24Z
dc.date.issued2005-07en_US
dc.identifier.citationJanus, Lori R.; Angeloni, Nicholas L.; McCormack, John; Rier, Steven T.; Tuchman, Nancy C.; Kelly, John J.; (2005). "Elevated Atmospheric CO 2 Alters Soil Microbial Communities Associated with Trembling Aspen ( Populus tremuloides ) Roots." Microbial Ecology 50(1): 102-109. <http://hdl.handle.net/2027.42/48116>en_US
dc.identifier.issn1432-184Xen_US
dc.identifier.issn0095-3628en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/48116
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=16052378&dopt=citationen_US
dc.description.abstractGlobal atmospheric CO 2 levels are expected to double within the next 50 years. To assess the effects of increased atmospheric CO 2 on soil ecosystems, cloned trembling aspen ( Populus tremuloides ) seedlings were grown individually in 1 m 3 open bottom root boxes under either elevated (720 ppm, ELEV) or ambient CO 2 (360 ppm, AMB). After 5 years, soil cores (40 cm depth) were collected from the root boxes and divided into 0–20 cm and 20–40 cm fractions. ELEV treatment resulted in significant decreases in both soil nitrate and total soil nitrogen in both the 0–20 cm and 20–40 cm soil fractions, with a 47% decrease in soil nitrate and a 50% decrease in total soil nitrogen occurring in the 0–20 cm fraction. ELEV treatment did not result in a significant change in the amount of soil microbial biomass. However, analysis of indicator phospholipid fatty acids (PLFA) indicated that ELEV treatment did result in significant increases in PLFA indicators for fungi and Gram-negative bacteria in the 0–20 cm fraction. Terminal restriction fragment length polymorphism (T-RFLP) analysis was used to analyze the composition of the soil bacterial communities (using primers targeting the 16SrRNA gene) and the soil fungal communities (using primers targeting the intergenic transcribed spacer region). T-RFLP analysis revealed shifts in both bacterial and fungal community structure, as well as increases in both bacterial and fungal species richness with ELEV treatment. These results indicated that increased atmospheric CO 2 had significant effects on both soil nutrient availability and the community composition of soil microbes associated with aspen roots.en_US
dc.format.extent192221 bytes
dc.format.extent3115 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_US
dc.publisherSpringer-Verlag; Springer Science+Business Media, Inc.en_US
dc.subject.otherEcologyen_US
dc.subject.otherMicrobiologyen_US
dc.subject.otherGeoecology/Natural Processesen_US
dc.subject.otherLife Sciencesen_US
dc.subject.otherNature Conservationen_US
dc.titleElevated Atmospheric CO 2 Alters Soil Microbial Communities Associated with Trembling Aspen ( Populus tremuloides ) Rootsen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelNatural Resources and Environmenten_US
dc.subject.hlbsecondlevelMolecular, Cellular and Developmental Biologyen_US
dc.subject.hlbsecondlevelEcology and Evolutionary Biologyen_US
dc.subject.hlbtoplevelHealth Sciencesen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Biology, Loyola University Chicago, Chicago, Illinois, 60626, USA; The University of Michigan Biological Station, Pellston, Michigan, 49769, USAen_US
dc.contributor.affiliationumDepartment of Biology, Loyola University Chicago, Chicago, Illinois, 60626, USA; The University of Michigan Biological Station, Pellston, Michigan, 49769, USAen_US
dc.contributor.affiliationumDepartment of Biology, Loyola University Chicago, Chicago, Illinois, 60626, USA; The University of Michigan Biological Station, Pellston, Michigan, 49769, USAen_US
dc.contributor.affiliationotherDepartment of Biology, Loyola University Chicago, Chicago, Illinois, 60626, USAen_US
dc.contributor.affiliationotherDepartment of Biology, Loyola University Chicago, Chicago, Illinois, 60626, USAen_US
dc.contributor.affiliationotherDepartment of Biology, Loyola University Chicago, Chicago, Illinois, 60626, USAen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.identifier.pmid16052378en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/48116/1/248_2004_Article_120.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1007/s00248-004-0120-9en_US
dc.identifier.sourceMicrobial Ecologyen_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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