Streptomyces polygonati sp nov., an endophytic actinomycete isolated from a root of Polygonatum odoratum (Mill.)

文献类型： 外文期刊

第一作者： Liu, Chongxi

作者： Liu, Chongxi;Liu, Shuanghe;Guan, Xuejiao;Guo, Lifeng;Jia, Feiyu;Wang, Xiangjing;Xiang, Wensheng;Xiang, Wensheng

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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 ）

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收录情况： SCI

摘要： A novel actinomycete, designated strain NEAU-G9(T), was isolated from the root of Polygonatum odoratum (Mill.) collected from Harbin, Heilongjiang province, north China, and was characterized using a polyphasic approach. Key morphological and chemotaxonomic properties confirmed the affiliation of strain NEAU-G9T to the genus Streptomyces. Strain NEAU-G9T contained LL-diaminopimelic acid as the diamino acid. The predominant menaquinones were MK-9(H-8), MK-9(H-6) and MK-9(H-4). The phospholipid profile contained diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositol mannoside. The predominant fatty acids were iso-C-16 anteiso-C-15 : 0, and C-16 : 0 .16S rRNA gene sequence similarity studies showed that strain NEAU-G9(T) belongs to the genus Streptomyces and exhibits the highest sequence similarity to Streptomyces yanglinensis JCM 13275(T) (97.75 %). However, phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain NEAU-G9(T) is most closely related to Streptomyces misakiensis JCM 4062(T) (97.1 2 % sequence similarity). A combination of DNA DNA hybridization results and some phenotypic characteristics indicated that strain NEAU-G9T can be clearly distinguished from yanglinensis JCM 13275(T) and S. misakiensis JCM 4062T. Consequently, strain NEAU-G9T represents a novel species of the genus Streptomyces, for which the name Streptomyces polygonati sp. nov. is proposed. The type strain is NEAU-G9T (=CGMCC 4.7237(T)=DSM 100521(T)).

分类号： Q

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