期刊
ENVIRONMENTAL MICROBIOLOGY
卷 11, 期 12, 页码 3096-3104出版社
WILEY
DOI: 10.1111/j.1462-2920.2009.02014.x
关键词
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类别
资金
- Environment and Agronomy research division
- International Relations Department of the INRA
- Department of Microbiology of the Swedish University of Agricultural Sciences in Uppsala
- [LC 06066]
- [IAA 600660605]
P>Whether bacteria display spatial patterns of distribution and at which level of taxonomic organization such patterns can be observed are central questions in microbial ecology. Here we investigated how the total and relative abundances of eight bacterial taxa at the phylum or class level were spatially distributed in a pasture by using quantitative PCR and geostatistical modelling. The distributions of the relative abundance of most taxa varied by a factor of 2.5-6.5 and displayed strong spatial patterns at the field scale. These spatial patterns were taxon-specific and correlated to soil properties, which indicates that members of a bacterial clade defined at high taxonomical levels shared specific ecological traits in the pasture. Ecologically meaningful assemblages of bacteria at the phylum or class level in the environment provides evidence that deep branching patterns of the 16S rRNA bacterial tree are actually mirrored in nature.
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