| Composition, spatial distribution, and diversity of the bacterial communities in the rumen of cows fed different forages. | |
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MedLine Citation:
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PMID: 21044097 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The species composition, distribution, and biodiversity of the bacterial communities in the rumen of cows fed alfalfa or triticale were investigated using 16S rRNA gene clone library analyses. The rumen bacterial community was fractionated and analyzed as three separate fractions: populations in the planktonic, loosely attached to rumen digesta particles, and tightly attached to rumen digesta particles. Six hundred and thirteen operational taxonomic units (OTUs) belonging to 32 genera, 19 families, and nine phyla of the domain Bacteria were identified from 1014 sequenced clones. Four hundred and fifty one of the 613 OTUs were identified as new species. These bacterial sequences were distributed differently among the three fractions in the rumen digesta of cows fed alfalfa or triticale. Chao 1 estimation revealed that, in both communities, the populations tightly attached to particulates were more diverse than the planktonic and those loosely attached to particulates. S-Libshuff detected significant differences in the composition between any two fractions in the rumen of cows with the same diet and between the communities fed alfalfa and triticale diets. The species richness estimated for the communities fed alfalfa and triticale is 1027 and 662, respectively. The diversity of the rumen bacterial community examined in this study is greater than previous studies have demonstrated and the differences in the community composition between two high-fiber diets have implications for sample selection for downstream metagenomics applications. |
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Authors:
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Yunhong Kong; Ronald Teather; Robert Forster |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-11-02 |
Journal Detail:
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Title: FEMS microbiology ecology Volume: 74 ISSN: 1574-6941 ISO Abbreviation: FEMS Microbiol. Ecol. Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-08 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8901229 Medline TA: FEMS Microbiol Ecol Country: England |
Other Details:
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Languages: eng Pagination: 612-22 Citation Subset: IM |
Copyright Information:
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© 2010 Federation of European Microbiological Societies and Her Majesty the Queen in Right of Canada, as represented by the Minister of Agriculture and Agri-Food Canada. |
Affiliation:
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Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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