Hong Sunhee, Farrance Christine E, Russell Anne, Yi Hana
Charles River Laboratories, Endotoxin and Microbial Detection, Newark, DE, USA.
School of Biosystem and Biomedical Science, Korea University, Seoul, Republic of Korea.
Int J Syst Evol Microbiol. 2015 Mar;65(Pt 3):1083-1085. doi: 10.1099/ijs.0.000058. Epub 2015 Jan 8.
Two species of the genus Deinococcus, namely Deinococcus wulumuqiensis Wang et al. 2010 and Deinococcus xibeiensis Wang et al. 2010, were simultaneously proposed and described in the same publication. However, the identical 16S rRNA gene sequence of the two type strains strongly raised the probability of their relatedness at the species level. Thus, the genomic relatedness of the two species of the genus Deinococcus was investigated here to clarify their taxonomic status. The high (99.9 %) average nucleotide identity (ANI) between the genome sequences of the two type strains suggested that the two species are synonymous. Additional phenotypic data including enzymic activities and substrate-utilization profiles showed no pronounced differences between the type strains of the two species. Data from this study demonstrated that the two taxa constitute a single species. According to Rule 42 of the Bacteriological Code, we propose that D. xibeiensis Wang et al. 2010 should be reclassified as a subjective heterotypic synonym of D. wulumuqiensis Wang et al. 2010.
2010年，在同一篇出版物中同时提出并描述了两种嗜皮菌属（Deinococcus）的细菌，即乌鲁木齐嗜皮菌（Deinococcus wulumuqiensis Wang et al. 2010）和西北嗜皮菌（Deinococcus xibeiensis Wang et al. 2010）。然而，这两个模式菌株相同的16S rRNA基因序列极大地增加了它们在物种水平上具有相关性的可能性。因此，在此对嗜皮菌属这两个物种的基因组相关性进行了研究，以明确它们的分类地位。两个模式菌株基因组序列之间较高的（99.9%）平均核苷酸同一性（ANI）表明这两个物种是同义的。包括酶活性和底物利用谱在内的其他表型数据显示，这两个物种的模式菌株之间没有明显差异。本研究的数据表明，这两个分类单元构成一个单一物种。根据《细菌学法规》第42条，我们提议将2010年的西北嗜皮菌重新分类为2010年乌鲁木齐嗜皮菌的一个主观异名。
