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dc.creatorguo_chun ding
dc.creatorYvette Piceno
dc.creatorHolger Heuer
dc.creatorANGEL EDGARDO CARRILLO GARCIA
dc.creatorGary Andersen
dc.creatorTHELMA ROSA CASTELLANOS CERVANTES
dc.creatorChristoph Tebbe
dc.date2013
dc.identifierhttp://cibnor.repositorioinstitucional.mx/jspui/handle/1001/983
dc.identifier.urihttp://dspace.cibnor.mx:8080/handle/123456789/1749
dc.description"Natural scrublands in semi-arid deserts are increasingly being converted into fields. This results in losses of characteristic flora and fauna, and may also affect microbial diversity. In the present study, the long-term effect (50 years) of such a transition on soil bacterial communities was explored at two sites typical of semi-arid deserts. Comparisons were made between soil samples from alfalfa fields and the adjacent scrublands by two complementary methods based on 16S rRNA gene fragments amplified from total community DNA. Denaturing gradient gel electrophoresis (DGGE) analyses revealed significant effects of the transition on community composition of Bacteria, Actinobacteria, Alpha- and Betaproteobacteria at both sites. PhyloChip hybridization analysis uncovered that the transition negatively affected taxa such as Acidobacteria, Chloroflexi, Acidimicrobiales, Rubrobacterales, Deltaproteobacteria and Clostridia, while Alpha-, Beta- and Gammaproteo-bacteria, Bacteroidetes and Actinobacteria increased in abundance. Redundancy analysis suggested that the community composition of phyla responding to agricultural use (except for Spirochaetes) correlated with soil parameters that were significantly different between the agricultural and scrubland soil. The arable soils were lower in organic matter and phosphate concentration, and higher in salinity. The variation in the bacterial community composition was higher in soils from scrubland than from agriculture, as revealed by DGGE and PhyloChip analyses, suggesting reduced beta diversity due to agricultural practices. The long-term use for agriculture resulted in profound changes in the bacterial community and physicochemical characteristics of former scrublands, which may irreversibly affect the natural soil ecosystem."
dc.formatapplication/pdf
dc.languageeng
dc.relationinfo:eu-repo/semantics/datasetDOI/DOI:10.1371/journal.pone.0059497
dc.relationinfo:eu-repo/semantics/altIdentifier/DOI/DOI:10.1371/journal.pone.0059497
dc.relationinfo:eu-repo/semantics/reference/URL/URL: http://journals.plos.org/plosone
dc.relationcitation:Ding G-C, Piceno YM, Heuer H, Weinert N, Dohrmann AB, et al. (2013) Changes of Soil Bacterial Diversity as a Consequence of Agricultural Land Use in a Semi-Arid Ecosystem. PLoS ONE 8(3): e59497. doi:10.1371/journal.pone.0059497
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourcePlos One
dc.subjectinfo:eu-repo/classification/AUTOR/Cultural soil science, land use , alfalfa, denaturing gradient gel electrophoresis, actinobacteria, community structure, permutation, sulfates
dc.subjectinfo:eu-repo/classification/cti/2
dc.subjectinfo:eu-repo/classification/cti/24
dc.subjectinfo:eu-repo/classification/cti/2414
dc.subjectinfo:eu-repo/classification/cti/241404
dc.subjectinfo:eu-repo/classification/cti/241404
dc.titleChanges of soil bacterial diversity as a consequence of agricultural land use in a semi-arid ecosystem
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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