1887

Abstract

A Gram-negative bacterial isolate (designated SRC-1) was isolated from an occasional drainage system and characterized by a polyphasic approach to determine its taxonomic position. Phylogenetic analysis based on 16S rRNA gene sequences affiliated strain SRC-1 with the family ‘’ of the phylum . It showed greatest sequence similarity to KMM 6156 (95.5 %) followed by MBRG1.5 (89.0 %) and DSM 11622 (88.9 %), but it differed from these micro-organisms in many phenotypic characteristics. Strain SRC-1 was an obligate aerobe and its cells were non-motile, irregular rods. The major fatty acids included mainly unsaturated and hydroxy fatty acids, including 17 : 1 iso I/anteiso B (36.7 %), 15 : 0 iso (15.8 %) and 17 : 0 iso 3-OH (10.3 %), and the DNA G+C content was 59.5 mol%. From the phenotypic and genotypic analyses it was clear that strain SRC-1 was quite different from members other genera in the family ‘’. Therefore we conclude that strain SRC-1 represents a novel genus, for which the name gen. nov., containing a single species sp. nov., is proposed. The type species of the genus is , the type strain of which is strain SRC-1 (=MTCC 7260=DSM 17521).

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2006-07-01
2020-01-20
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