Methanobrevibacter Phylotypes Are the Dominant Methanogens in Sheep from Venezuela

Overview

Journal Microb Ecol

Specialties Environmental Health
Microbiology

Date 2008 Jan 1

PMID 18165875

Citations 41

Authors

Andre-Denis G Wright

Xuanli Ma

Nestor E Obispo

Affiliations

Soon will be listed here.

Abstract

Rumen methanogens in sheep from Venezuela were examined using 16S rRNA gene libraries and denaturing gradient gel electrophoresis (DGGE) profiles prepared from pooled and individual PCR products from the rumen contents from 10 animals. A total of 104 clones were examined, revealing 14 different 16S rRNA gene sequences or phylotypes. Of the 14 phylotypes, 13 (99 of 104 clones) belonged to the genus Methanobrevibacter, indicating that the genus Methanobrevibacter is the most dominant component of methanogen populations in sheep in Venezuela. The largest group of clones (41 clones) was 97.9-98.5% similar to Methanobrevibacter gottschalkii. Two sequences were identified as possible new species, one belonging to the genus Methanobrevibacter and the other belonging to the genus Methanobacterium. DGGE analysis of the rumen contents from individual animals also revealed 14 different bands with a range of 4-9 bands per animal.

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