Streptomyces tritici sp nov., a novel actinomycete isolated from rhizosphere soil of wheat (Triticum aestivum L.)
文献类型: 外文期刊
第一作者: Shi, Linlin
作者: Shi, Linlin;Li, Wenchao;Wang, Jiabin;Wang, Han;Tian, Yuanyuan;Xiang, Wensheng;Wang, Xiangjing;Xiang, Wensheng
作者机构:
关键词: Streptomyces tritici sp nov.;polyphasic taxonomy;16S rRNA gene
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 2 期
页码:
收录情况: SCI
摘要: Two novel actinomycete isolates, designated strains NEAU-A4(T) and NEAU-A3, were isolated from rhizosphere soil of wheat (Triticumaestivum L.) and characterized using a polyphasic approach. Morphological and chemotaxonomic characteristics of the two strains coincided with those of the genus Streptomyces. The 16S rRNA gene sequence analysis showed that the two isolates exhibited 99.6% 16S rRNA gene sequence similarity with each other and that they were most closely related to Streptomyces violaceorectus DSM 40279(T) (98.8, 99.0 %). Phylogenetic analysis based on 16S rRNA gene sequences indicated that the two strains clustered together and formed a separate subclade. Furthermore, a combination of DNA-DNA hybridization results and some physiological and biochemical properties demonstrated that the two strains could be distinguished from its closest relative. Therefore, it is proposed that strains NEAU-A4(T) and NEAU-A3 should be classified as representatives of a novel species of the genus Streptomyces, for which the name Streptomyces tritici sp. nov. is proposed. The type strain is NEAU-A4(T) (=CGMCC 4.7393(T)=DSM 104540(T)).
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