1887

Abstract

A novel thermophilic bacterial strain, CBS-Z, was isolated from a terrestrial hot spring in the Changbai Mountains, PR China. Cells of strain CBS-Z were short straight rods without flagella and had Gram-positive cell walls. Growth was observed at 40–90 °C (optimum 75 °C) and at pH 5.6–8.6 (optimum pH 7.8). The primary end-products from the fermentation of filter paper by strain CBS-Z were acetate, lactate, H, and CO. The main cellular fatty acids were iso-C, iso-C 3-OH and C. The G+C content of the genomic DNA was 36.08 mol%. Multiple sequence alignment of the 16S rRNA gene sequence and phylogenetic analyses indicated that strain CBS-Z belongs to the genus and the most similar micro-organism was DSM 8903 (96.36 % 16S rRNA gene sequence similarity); the 16S rRNA gene sequence similarity of strain CBS-Z to other species was below 95 %. Based on its phylogenetic and phenotypic characteristics, strain CBS-Z represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is CBS-Z ( = DSM 26941 = CGMCC 1.5180).

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2015-01-01
2019-11-22
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