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Abstract

A novel yellow-pigmented, Gram-negative, slightly halophilic, catalase-positive, oxidase-negative, obligately aerobic bacterium, designated strain YIM-C338, was isolated from saline soil from the Qaidam Basin in north-west China. Cells were non-sporulating, non-motile, short rods, predominantly occurring singly. Coccoid bodies and slightly curved rod-shaped cells of varying length developed in older cultures. Growth occurred with 0.5–8 % (w/v) NaCl (optimally with 1–3 %, w/v), at pH 6.0–9.0 (optimally at pH 7.0) and at 4–37 °C (optimally at 28 °C). The major cellular fatty acids were C, C, C 7, C 7, iso-C 3-OH and iso-C. MK-6 was the only respiratory quinone. Non-diffusible carotenoid pigments were produced. Flexirubin-type pigments were absent. The genomic DNA G+C content was 42.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YIM-C338 was a member of the genus , having sequence similarities of 97.3 and 94.0 % with respect to BH206 and HY1. The combination of the phylogenetic data, phenotypic characteristics and chemotaxonomic differences supported the view that strain YIM-C338 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is YIM-C338 (=DSM 17865 =CGMCC 1.6308). An emended description of the genus is also provided.

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2008-11-01
2019-12-08
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vol. , part 11, pp. 2501 - 2504

Whole-cell fatty acid compositions (%) of strain YIM-C338 and type strains of the genus . [PDF](40 KB)



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