Streptomyces tritolerans sp. nov., a novel actinomycete isolated from soil in Karnataka, India

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Streptomyces tritolerans sp. nov., a novel actinomycete isolated from soil in Karnataka, India
D G Syed; D Agasar; Chang-Jin Kim; W J Li; Jae-Chan Lee; Dong Jin park; L H Xu; X P Tian; C L Jiang
Bibliographic Citation
Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, vol. 92, no. 4, pp. 391-397
Publication Year
A Gram-positive, nonmotile, moderately halophilic, alkali and thermotolerant strain designated DAS 165T, was isolated from a dry land soil sample from the Gulbarga region, Karnataka province, India. The isolate produced yellow substrate mycelia and gray aerial mycelia on most tested media. Strain DAS 165T showed growth in the presence of 5 to 7% NaCl and at 45°C. The DNA G + C content was 69.7%. 16S rRNA gene sequence analysis together with these characteristics consistently assigned strain DAS 165T to the genus Streptomyces. The 16S rRNA gene sequence analysis revealed that strain DAS 165T was most closely related to S. tendae ATCC 19812T (D 63873) with a sequence similarity of 99.6% (three nucleotide differences out of 1,517). Strain DAS 165T formed a distinct clade based on analysis of the almost complete sequence and 120-nucleotide variable γ region of the 16S rRNA gene. Despite the high sequence similarity, strain DAS 165T was phenotypically different from S. tendae ATCC 19812T. DNA-DNA hybridization between these strains was 47% showing that strain DAS 165T is a distinct genomic species. Phenetic and genetic results support the classification of strain DAS 165T as a new species, for which the name S. tritolerans is proposed, with strain DAS 165T as the type strain (=DSM 41899T = CCTCCAA 206013T).
16S rRNApolyphasic taxonomystreptomyces tritolerans sp. Nov
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Division of Biomedical Research > Microbiome Convergence Research Center > 1. Journal Articles
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