文献类型: 外文期刊
作者: Xie, Qing-Yi 1 ; Ren, Jian 1 ; Li, Lei 1 ; Li, Yu 3 ; Deng, Zi-Xin 1 ; Hong, Kui 1 ;
作者机构: 1.Minist Educ, Key Lab Combinatorial Biosynth & Drug Discovery, Wuhan 430071, Peoples R China
2.Wuhan Univ, Sch Pharmaceut Sci, Wuhan 430071, Peoples R China
3.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Peoples R China
关键词: Micromonospora mangrovi sp nov.;Polyphasic taxonomy;16S rRNA
期刊名称:ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY ( 影响因子:2.271; 五年影响因子:2.707 )
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收录情况: SCI
摘要: A novel actinomycete strain 2803GPT1-18(T) was isolated from a composite mangrove soil sample collected from Beihai, Guangxi province, China. Phylogenetic analysis of the 16S rRNA gene sequence of strain 2803GPT1-18(T) indicated high similarity with 'Micromonospora harpali' NEAU-JC6(T) (99.2 %), Micromonospora haikouensis 232617(T) (99.1 %), Micromonospora wenchangensis 2602GPT1-05(T) (99.1 %), Micromonospora schwarzwaldensis HKI0641(T) (99.1 %). The gyrB gene sequence analysis also indicated that strain 2803GPT1-18(T) should be assigned to the genus Micromonospora but different from any established Micromonospora species. The strain harbored meso-DAP and glycine as major cell wall amino acids, MK-10(H-6) (53.5 %), MK-9(H-6) (25.1 %) and MK-9(H-4) (13.4 %) as predominant menaquinones. The characteristic whole cell sugars are arabinose, xylose, glucose, galactose and mannose. The polar lipid profile comprises phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylinositol and unidentified polar lipids. The major cellular fatty acids present are iso-C-16:0 (44.2 %) and iso-C-15:0 (12.4 %). The DNA G+C content is 71.2 mol%. Furthermore, a combination of DNA-DNA relatedness and some physiological and biochemical properties indicated that the novel strain could be readily distinguished from the closely related species. On the basis of these phenotypic and genotypic data, strain 2803GPT1-18(T) represents a novel species of the genus Micromonospora, for which the name Micromonospora mangrovi sp. nov. is proposed. The type strain is 2803GPT1-18(T) (=CCTCC AA2012012(T) = DSM45761(T)).
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