Massilia violaceinigra sp nov., a novel purple-pigmented bacterium isolated from glacier permafrost

文献类型： 外文期刊

第一作者： Wang, Haisheng

作者： Wang, Haisheng;Zhao, Baisuo;Zhang, Xiaoxia;Wang, Shuangyan;Lou, Kai;Xing, Xin-Hui;Xing, Xin-Hui;Xing, Xin-Hui

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关键词： new taxa; Massilia; novel species

期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）

ISSN： 1466-5026

年卷期： 2018 年 68 卷 7 期

页码：

收录情况： SCI

摘要： A Gram-stain-negative, motile and rod-shaped bacterium, designated strain B2(T), which can synthesize purple pigments of violacein and dexyoviolacein, was isolated from Tianshan glacier in Xinjiang, China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that it was grouped in the genus Massilia with Massilia glaciei B448-2(T), Massilia eurypsychrophila B528-3T and Massilia psychrophila B1555-1(T) as its closest relatives (98.2, 97.9 and 97.0 % 16S rRNA gene sequence similarity, respectively). Genomic relatedness between strain B2(T) and its closest relatives was evaluated using average nucleotide identity, digital DNA-DNA hybridization and average amino acid identity, with values of 77.93-85.08 %, 22.4-23.4 % and 71.54-72.99 %, respectively. Q-8 was the major ubiquinone. The major fatty acids (>5 %) of strain B2T were summed feature 3 (C-16 : 1 omega 7c and/or C-16 : 1 omega 6c), C12 : 0 and summed feature 8 (C-18 : 1 omega 7c and/or C18 : 1 omega 6c). The major polar lipids included phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C content of strain B2T was 63.51 mol%. Based on genomic relatedness, physiological, biochemical and chemotaxonomic data, strain B2(T) (=CGMCC 1.6993(T)=DSM 19531(T)=KCTC 32446(T)) is considered to represent a novel species within the genus Massilia, for which the name Massilia violaceinigra sp. nov. is proposed.

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