1887

Abstract

A taxonomic study was performed on strain YIM 31775, which was isolated from a soil sample collected from Yunnan Province, China. The isolate was chemo-organotrophic, aerobic and Gram-negative. Cells were short rods and motile, with one or more polar flagella. Growth temperature and pH ranged from 4 to 55 °C and 6·5 to 12·0, respectively; the optimum growth temperature and pH were 28–37 °C and 7·0–9·0, respectively. Q-8 was the predominant respiratory lipoquinone. The major fatty acids were C 7 (42·4 %) and C (28·1 %). The DNA G+C content was 62·4±0·3 mol%. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain YIM 31775 should be placed within the family ‘O’, in which it formed a distinct lineage. Based on the high 16S rRNA gene sequence divergence and phenotypic characteristics, it is proposed that strain YIM 31775 should be classified as representing a novel member of the family ‘O’, for which the name gen. nov., sp. nov. is proposed. The type strain is YIM 31775 (=CCTCC AA 204003=KCTC 12194).

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2005-05-01
2019-10-20
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