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Streptomyces liangshanensis sp. nov., a novel actinomycete isolated from rhizosphere soil of Fagopyrum tataricum

文献类型： 外文期刊

作者： Guo, Yi-hui 1 ; Tang, Xin-ke 1 ; Hu, Si-ren 1 ; Zhou, Mei-liang 3 ; Gao, Jian 1 ;

作者机构： 1.Hunan Univ Sci & Technol, Sch Life Sci, Xiangtan 411201, Peoples R China

2.Coll Hunan Prov, Key Lab Ecol Remediat & Safe Utilizat Heavy Met P, Xiangtan 411201, Peoples R China

3.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China

关键词： Streptomyces liangshanensis sp; nov; Rhizosphere soil; Fagopyrum tataricum; Polyphasic taxonomy

期刊名称：ARCHIVES OF MICROBIOLOGY （ 影响因子：1.884； 五年影响因子：1.835 ）

ISSN： 0302-8933

年卷期：

页码：

收录情况： SCI

摘要： A novel actinomycete strain, designated strain QMT-12(T), was isolated from the rhizospheric soils of Fagopyrum tataricum and characterized using a polyphasic approach. Strain QMT-12(T) was found to have morphological features typical of the genus Streptomyces. The predominant fatty acids included C(18:1)cis9 (35.9%), Summed feature 6 (C(18:2)cis9, 12/C-18:0 a or C(18:0)anteiso/C-18:2 c) (30.6%) and C-16:0 (16.3%). The whole-cell sugars were arabinose and glucose. The whole-cell-wall amino acids included alanine, aspartate, glutamic acid, glycine and ll-diaminopimelic acid. The menaquinones were MK-9, MK-9(H-2), MK-9(H-4), MK-9(H-6) and MK-9(H-8). The diagnostic phospholipids consisted of diphosphatidyl glycerol, phosphatidylethanolamine, phosphatidyl methyl ethanolamine, phospholipids, phosphotidyl inositol, phosphotidylinositol mannosides, and phospholipids of unknown structure containing glucosamine. The full-length 16S rRNA gene sequence analysis showed that strain QMT-12(T) belonged to the genus Streptomyces and had 98.2, 98.1, 98.1 and <= 98.0% similarities to Streptomyces camponoticapitis 2H-TWYE14(T), Streptomyces scopuliridis NRRL B-24574(T), Streptomyces inhibens NEAU-D10(T) and other Streptomyces species with validly published and correct names, respectively. Phylogenetic analysis indicated that strain QMT-12(T) was closely related to Streptomyces inhibens NEAU-D10(T). However, the average nucleotide identity value and the digital DNA-DNA hybridization value between strain QMT-12(T) and S. inhibens NEAU-D10(T) were 85.0 and 22.3%, respectively, well below 95-96% and 70% cut-off point recommended for delineating species. Based on its phenotypic and genotypic characteristics, strain QMT-12(T) (= CICC 11056(T) = JCM 33963(T)) represents the type strain of a novel species, for which the name Streptomyces liangshanensis sp. nov. is proposed.

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