1887

Abstract

We propose the name subsp. for a new subspecies of gram-negative, microaerophilic , which is nitrate negative and was isolated from human clinical specimens (gastric epithelium biopsies and feces). The pathogenicity of the organism is not known. Strains grow poorly at 42°C; most produce catalase, but some give weak or negative reactions; none reduces nitrate to nitrite. The guanine-plus-cytosine contents of the deoxyribonucleic acids (DNAs) of 10 strains were 29+1 mol% (mean + standard deviation). Conventional bacteriological tests and DNA-DNA hybridization experiments revealed that these strains form a tight phenotypic and genotypic cluster within . The characteristics which differentiate the new subspecies from other members of and from are given. The type strain is strain 093 (= NCTC 11951): It was isolated from the feces of a young child with diarrhoea and has a guanine-plus-cytosine content of 29 mol%.

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1988-07-01
2023-01-27
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