1887

Abstract

A novel Gram-negative, motile, aerobic rod-shaped bacterium was isolated from a sp. specimen collected from the Logatchev hydrothermal vent field at the Mid-Atlantic Ridge. The novel strain, M41, was catalase- and oxidase-positive and metabolised various carbohydrates and amino acids. It grew well in marine broth with an optimal growth temperature of 31 °C to 34 °C (range 4–40 °C) and salinity requirement of 3 % (range 0.3–9 %). The pH range for growth was pH 4.6 to 9.5, with an optimum at pH 8.0. The predominant fatty acids were C 7, C and C 7. The DNA G+C content of strain M41 was 52.2 mol%. The 16S rRNA gene sequence was 94 % similar to that of the type strain of , the closest cultivated relative. Other related type strains were (93 % gene sequence similarity), (92%) and (92 %). According to phylogenetic analysis and physiological characteristics, it is suggested that strain M41 represents a new genus and novel species for which the name gen. nov., sp. nov. is proposed. The type strain is M41 (=DSM 18887=LMG 24143).

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2008-01-01
2019-09-21
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