1887

Abstract

Two strains of curved bacteria, 7-1 and 7-2, isolated from well water, were phylogenetically examined to determine their taxonomic position. Strain 7-1 is a Gram-negative, slightly curved rod. Analysis of the 16S rRNA gene sequence showed that strain 7-1 formed a cluster with [] and [] . It has some similar characteristics to [] and [] , but has sufficient distance to separate it from other genera. DNA–DNA hybridization analysis, as well as chemotaxonomic and morphological studies, demonstrated that strain 7-1, [] and [] belong to a new genus, gen. nov. Strain 7-1 (=IAM 15033=ATCC BAA-807) is classified as the type strain of gen. nov., sp. nov., and [] and [] are classified as comb. nov. and comb. nov., respectively. Strain 7-2 is a Gram-negative spirillum. Phylogenetic study based on the 16S rRNA gene sequences showed that it formed a cluster with the members of the genus , [] and [] . The classification is therefore proposed of strain 7-2 (=IAM 15032=ATCC BAA-806) as the type strain of sp. nov., and [] and [] are transferred to the genus as comb. nov. and comb. nov., respectively.

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2004-11-01
2021-04-16
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