1887

Abstract

Two Gram-staining-negative, rod-shaped, non-spore-forming bacterial strains, 1-2 and 1-4 were isolated from dry riverbed soil collected from the Xietongmen area of Tibet, China. On the basis of 16S rRNA gene sequence similarity, the novel strains were shown to belong to the genus , sharing <95 % sequence similarity with all recognized species of the genus . The major respiratory quinone was MK-7 and the predominant cellular fatty acids were iso-C15 : 0, iso-C 3-OH and summed feature 3 (comprising iso-C 7 and/or C 6). The DNA GC contents were 37.2–37.6 mol%. Chemotaxonomic data supported the affiliation of the two new isolates to the genus and the results of physiological and biochemical tests confirmed that the new strains differed significantly from the recognized species of the genus . Therefore, the new isolates represent a novel species within the genus , for which the name sp. nov. is proposed. The type strain is 1-2 (=CCTCC AB 206110=KCTC 22438).

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2010-01-01
2019-10-20
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vol. , part 1, pp. 229 - 233

Phase-contrast micrograph of cells of strain 1-2 in exponential phase. The strain was cultivated on 0.1× TSA (Difco) after 40h. Cells were suspended in sterilized water. Bar, 10 µm.



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