1887

Abstract

A Gram-negative, oxidase- and catalase-positive, moderately halophilic strain, designated YCSA40, was isolated from sediment of Daqiao saltern in Qingdao, on the east coast of China. Growth occurred at 10–45 °C, at pH 5–9 and with 1–15 % NaCl. Strain YCSA40 showed the highest 16S rRNA gene sequence similarity to SS011B1-4 (97 %) and SL014B61A (96.9 %) and 16S rRNA gene sequence phylogenetic analysis assigned the isolate to the genus . Strain YCSA40 contained Cω9 (34.8 %), C (11.6 %), C cyclo ω10/Cω6 (10.5 %), Cω9 (8.4 %), C (6.3 %) and C 3-OH (5.8 %) as the predominant fatty acids. The DNA GC content was 60.8 mol% and the major ubiquinone was Q-9. These chemotaxonomic characters were all consistent with membership of the genus . DNA–DNA relatedness between the isolate and CGMCC 1.6489, CGMCC 1.6294 and other type strains of species of the genus was ≤30 %. On the basis of the aforementioned data, it was concluded that strain YCSA40 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is YCSA40 ( = CGMCC 1.9167  = NCCB 100308  = LMG 25365).

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2011-12-01
2019-10-14
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vol. , part 12, pp. 3003 - 3008

Transmission electron micrograph of a cell of sp. nov. YCSA40 cultivated for 24 h on MA.

Minimum-evolution phylogenetic dendrogram based on 16S rRNA gene sequences, showing the position of sp. nov. YCSA40 with respect to other members of the genus .

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