Caiyun Yang,Yi

Li,Qian Guo,Qiliang Lai,Jun Wei,Tianling Zheng, Yun Tian.International Journal of

Systematic and Evolutionary Microbiology, 2013. 63: 2320-2325.

A Gram-staining-negative, rod-shaped and

non-motile bacterial strain, designated 12C25^T, was isolated from

the crude-oil-degrading bacterial consortium enriched from mangrove sediment

collected in Fujian Province, China. Optimal growth was observed at 25–28 °C,

at pH 7.0 and in the presence of 2% (w/v) NaCl + 2% (w/v) KCl. Comparative 16S

rRNA gene sequence analysis demonstrated that strain 12C25^Tshared

the highest sequence similarity with members of the genusMuricauda(97.7–93.9%), exhibiting 97.7% sequence similarity and

33.7±4% DNA–DNA relatedness toMuricauda aquimarinaSW-63T. The DNA G+C

content of strain 12C25^Twas 39.9 mol%. The dominant fatty acids

were iso-C_15:1G, iso-C_17:03-OH, iso-C_{15: 0},

C_18:0and iso-C_15:03-OH, and menaquinone with six

isoprene units (MK-6) was the only respiratory quinone. On the basis of

phenotypic data and phylogenetic inference, the novel strain belongs to the

genusMuricauda, but can readily be distinguished from known species of this

genushttp://dx.doi.org/10.1601/nm.8170and thus represents a novel species of the genusMuricauda. The nameMuricaudazhangzhouensissp. nov. is proposed and the type strain is

12C25^T(=CGMCC 1.11028^T=MCCC 1F01096^T=DSM

25030^T).

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