1887

Abstract

A Gram-negative, non-spore-forming, ovoid to rod-shaped aerobic or microaerobic bacterium, strain 262-8, was isolated from a cavity within white rock collected in Antarctica. Strain 262-8 grew at 5–30 °C (optimum 25 °C), at pH 6–8 (optimum approximately pH 7) and with 0.1–2.0 % (w/v) NaCl (optimum 0.5 % NaCl). The addition of tryptone or yeast extract was essential for growth. Strain 262-8 was able to utilize organic compounds such as ribose, pyruvate and succinate in the presence of a low concentration of tryptone. Ubiquinone 10 was the major respiratory quinone. The major fatty acids were C, C and C. The G+C content of the genomic DNA was 69.8 mol%. Comparative analyses of 16S rRNA gene sequences and physiological characteristics indicated that strain 262-8 was a phylogenetically novel bacterium that should be classified in a new genus of the family , for which the name gen. nov., sp. nov. is proposed. The type strain of the type species is 262-8 ( = JCM 16422 = ATCC BAA-1906).

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2011-08-01
2019-10-23
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vol. , part 8, pp. 1973 - 1980

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The white rock sample in the Skallen region, Antarctica, from which gen. nov., sp. nov. 262-8 was isolated.

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