Mucilaginibacter polytrichastri sp nov., isolated from a moss (Polytrichastrum formosum), and emended description of the genus Mucilaginibacter

作者：Chen, Xin Yao; Zhao, Ran; Tian, Yang; Kong, Bi He; Li, Xue Dong; Chen, Zhi Ling; Li, Yan Hong^*

来源：International Journal of Systematic and Evolutionary Microbiology, 2014, 64(Pt 4): 1395-1400.

DOI：10.1099/ijs.0.055335-0

• DEOXYRIBONUCLEIC-ACID
• BASE COMPOSITION
• BACTERIA
• WEIGHT
• FAMILY

A Gram-staining-negative, rod-shaped, non-spore-forming bacterium, designated strain RG4-7(T), was isolated from the moss Polytrichastrum formosum collected from Gawalong glacier in Tibet, China, and characterized by using a polyphasic taxonomic approach. The predominant fatty acids of strain RG4-7(T) were summed feature 3 (C-16:1 omega 7c and/or C-16:1 omega 6C), iso-C-15:0 and iso-C-17:0 3-OH. The major polar lipids were phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified phospholipid, two unidentified aminolipids and one unidentified lipid. Strain RG4-7(T) contained MK-7 as the dominant menaquinone and the G+C content of its genomic DNA was 39.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain RG4-7(T) was affiliated to species of the genus Mucilaginibacter, and its closest relative was Mucilaginibacter jinjuensis YC7004(T) (97.0% sequence similarity). However, the DNA DNA relatedness between this strain and strain RG4-7(T) was only 49.1 +/- 3.7 %. Based on phylogenetic inference and phenotypic data, strain RG4-7(T) is considered to represent a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter polytrichastri sp. nov. is proposed. The type strain is RG4-7(T) (=CGMCC 1.12493(T)=DSM 26907(T)). An emended description of the genus Mucilaginibacter is also proposed.

• 出版日期2014-4
• 单位首都师范大学