Jianqiang Su, Yanyan Zhou, Qiliang Lai,Xinyi Li,Peiyan Dong,Xiaoru Yang,Bangzhou Zhang,Jinlong Zhang,Xiaowei Zheng,Yun Tian, Tianling Zheng,International Journal of Systematic and Evolutionary Microbiology,2013. 63: 2095-2100.

A taxonomic study was carried out on strain SCSWE24^T, isolated from a seawater sample collected from the South China Sea. Cells of strain SCSWE24^Twere Gram-negative, rod-shaped, non-motile, moderately halophilic and capable of reducing nitrate to nitrite. Growth was observed at salinities from 1.5 to 4.5% and at 4–37 °C; it was unable to degrade gelatin. The dominant fatty acids (>15%) were summed feature 3 (C_16:1ω7cand/or C_16:1ω6c; 50.4%) and C_{16: 0}(21.1%). The G+C content of the chromosomal DNA was 58.8 mol%. 16S rRNA gene sequence comparisons showed that strain SCSWE24^Twas most closely related to an uncultured bacterium clone Tun3b.F5 (98%; GenBank accession no.FJ169216), and showed 92% similarity to an endosymbiont bacterium from the bone-eating wormOsedax mucofloris(clone Omu 9 c4791; FN773233). Levels of similarity between strain SCSWE24^Tand type strains of recognized species in the familyOceanospirillaceaewere less than 93%; the highest similarity was 92%, to bothAmphriteajaponicaJAMM 1866^Tand ‘Oceanicoccus sagamiensis’ PZ-5. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain SCSWE24^Tformed a distinct evolutionary lineage within the familyOceanospirillaceae. Strain SCSWE24^Twas distinguishable from members of phylogenetically related genera by differences in several phenotypic properties. On the basis of the phenotypic and phylogenetic data, strain SCSWE24^Trepresents a novel species of a new genus, for which the nameSinobacteriumcaligoidesgen. nov., sp. nov. is proposed. The type strain ofSinobacteriumcaligoidesis SCSWE24T (=CCTCC AB 209289^T=LMG 25705^T=MCCC 1F01088^T). An emended description ofAmphriteajaponicais also provided.