title: Microbes involved in dissimilatory nitrate reduction in the human large intestine.
abstract: Nitrate-limited batch cultures, incorporating 20 different fermentation substrates and inoculated with human faeces, mainly selected for the growth of enterobacteria. The microbial diversity involved was determined by a combination of phenotypic and genotypic procedures. Continuous culture with lactate as the sole electron donor selected for similar micro-organisms, but when antibiotics were incorporated to inhibit Escherichia coli and lactate was replaced with choline, there was a wider microbial diversity recovered. Clostridium ramosum and Bacteroides vulgatus were then isolated as well as enterobacteriaceae.
authors.affiliation: Microbiology Department, Institute of Food Research, Earley Gate, Reading, UK
authors.initials: NJ
authors.lastname: Parham
authors.initials: GR
authors.lastname: Gibson