Streptomyces bullii sp. nov., isolated from a hyper-arid Atacama Desert soil
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A Streptomyces strain isolated from a hyper-arid Atacama Desert soil was characterised using a polyphasic taxonomic approach. The strain, designated C2T, had chemical and morphological properties typical of the genus Streptomyces. The isolate formed a branch in the Streptomyces 16S rRNA gene tree together with the type strain of Streptomyces chromofuscus and was also loosely related to Streptomyces fragilis NRRL 2424T. DNA:DNA relatedness values between the isolate and its two phylogenetic neighbours showed that it formed a distinct genomic species. The strain was readily distinguished from these organisms using a combination of morphological and phenotypic data. Based on the genotypic and phenotypic results, isolate C2T represents a novel species in the genus Streptomyces, for which the name Streptomyces bullii sp. nov. is proposed. The type strain is C2T (=CGMCC 4.7019T = KACC 15426T).
KeywordsStreptomyces Polyphasic taxonomy
M. G. thanks the Leverhulme Trust for an Emeritus Fellowship and Y. H. and X. R. are grateful for support from the National Science Foundation of China (Grant 31100003). We are all indebted to Dr. Hang-Yeon Weon (Korea Agricultural Culture Collection, Suwon, Korea) for the fatty acid data.
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