Effect of biowaste sludge maturation on the diversity of thermophilic bacteria and archaea in an anaerobic reactor.

ABSTRACT: Prokaryotic diversity was investigated near the inlet and outlet of a plug-flow reactor. After analyzing 800 clones, 50 bacterial and 3 archaeal phylogenetic groups were defined. Clostridia (>92%) dominated among bacteria and Methanoculleus (>90%) among archaea. Significant changes in pH and volatile fatty acids did not invoke a major shift in the phylogenetic groups. We suggest that the environmental filter imposed by the saline conditions (20 g liter(-1)) selected a stable community of halotolerant and halophilic prokaryotes.

SUBMITTER: Goberna M 

PROVIDER: S-EPMC2675232 | biostudies-literature | 2009 Apr

REPOSITORIES: biostudies-literature