Affiliation:
1. School of Biological Sciences, University of Liverpool, Liverpool L69 7ZB, United Kingdom
Abstract
ABSTRACT
Primer sets specific for 16S rRNA genes were designed for four phylogenetic groups of clostridia known to contain mesophilic cellulolytic species. Specific amplification of these groups from landfill leachate DNA extracts demonstrated the widespread occurrence of clostridia from the
Clostridium thermocellum
and
C. leptum
groups. In contrast, the
C. botulinum
group was never detected, and the
C. coccoides
-
C. lentocellum
group was only occasionally detected. Amplification products were analyzed by temporal thermal gel electrophoresis to generate profiles of the clostridial groups and to identify dominant bands. Sequence analysis of 17 landfill clones confirmed that the primers were specific for the clostridial subgroups and that the cloned sequences had a close relationship with known cellulose-degrading clostridia. The primers have therefore been authenticated for use in the rapid identification of clostridia in anaerobic environments.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Cited by
116 articles.
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