Brachybacterium huguangmaarense sp nov., isolated from Lake sediment

作者：Liu Ying; Xie Qing Yi^*; Shi Wei; Li Lei; An Jun Ying; Zhao Ya Mei; Hong Kui

来源：International Journal of Systematic and Evolutionary Microbiology, 2014, 64: 1673-1678.

DOI：10.1099/ijs.0.052464-0

A Gram-stain positive strain, M1(T), was isolated from the sediment of Maar Lake in Zhanjiang, Guangdong Province, China. The diagnostic cell-wall diamino acid was meso-diaminopimelic acid, and mycolic acids were not detected. The polar lipid profile of strain M1(T) consisted of diphosphatidylglycerol, phosphatidylglycerol, an unidentified phospholipid and an unknown glycolipid. The predominant quinone was MK-7, with MK-6 as a minor component. The major fatty acids were anteiso-C-15:0 and anteiso-C-17:0, with iso-C-18:0 as a minor component. The DNA G+C content of the genomic DNA was 71.0 mol%. 16S rRNA gene sequence analysis showed that strain M1(T) belongs to the family Dermabacteraceae, sharing highest sequence similarity with Brachybacterium nesterenkovii JCM 11648(T) (98.1%). Furthermore, a combination of DNA DNA relatedness and physiological and biochemical properties indicated that the novel strain could be readily distinguished from its closest phylogenetic relatives. On the basis of these phenotypic and genotypic data, strain M1(T) represents a novel species of the genus Brachybacterium, for which the name Brachybacterium huguangmaarense sp. nov. is proposed. The type strain is M1(T) (=CCTCC AB 2012866(T)=DSM 26370(T)).

• 单位
  武汉大学; 广东海洋大学; 中国热带农业科学院; 中国热带农业科学院椰子研究所