1887

Abstract

Two novel bacteria, with an optimum growth temperature of approximately 60 °C, were isolated from Lu-shan hot springs in the central region of Taiwan. These isolates were aerobic, thermophilic, halotolerant, pink-pigmented, heterotrophic and resistant to gamma-radiation. Both pleomorphic, short, rod-shaped cells and coccoid cells were observed. Strains LS-286 (=ATCC BAA-452=BCRC 17198) and LS-293 (=ATCC BAA-406=BCRC 17173) represented a novel species of the genus , according to a phylogenetic analysis of the 16S rRNA gene, DNA–DNA hybridization, biochemical features and fatty acid composition. The name sp. nov. is proposed for this novel species, with LS-293 as the type strain.

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2004-09-01
2019-10-23
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vol. , part 5, pp. 1849 - 1855

Images from transmission electron microscopy (TEM) and atomic-force microscopy (AFM) of strain LS-293 . (a) Aggregated cells in liquid culture; (b) a single short rod-shaped cell; (c) different stages of cell division under TEM; (d) AFM image showing the smooth surface and different stages of cell division. Bar, 0.2 µm (a-c).

Effects of pH (a) and salinity (b) on the growth rates of isolates LS-286 and LS-293 , DSM 5868 and DSM 9441 .

Fatty acid compositions at different temperatures of strains LS-286 and LS-293 , DSM 9941 and DSM 5868 .

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