1887

Abstract

A thermophilic strain, designated YIM 10002, was isolated from a soil sample of Big Empty Volcano in Tengchong county, Yunnan province, south-west China, and a polyphasic approach was used to investigate its taxonomic position. Strain YIM 10002 formed endospores on both aerial and substrate mycelia. Whole-cell hydrolysates contained -diaminopimelic acid, ribose, xylose and glucose. The major fatty acids were iso-C and anteiso-C. The predominant menaquinone was MK-9. The polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositol mannosides, together with some unknown phospholipids. The GC content of its genomic DNA was 48.6 mol%. All of these chemotaxonomic data together with morphological characters consistently assigned strain YIM 10002 to the genus . 16S rRNA gene sequence analysis showed that strain YIM 10002 was most closely related to KCTC 9790 and KCTC 3666 (99.9 and 98.0 % 16S rRNA gene sequence similarity, respectively). However, strain YIM 10002 showed relatively low DNA–DNA relatedness (34.0 and 39.0 %, respectively) with the above strains. Therefore, strain YIM 10002 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is YIM 10002 (=DSM 45262 =CCTCC AA 208050).

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2010-09-01
2021-04-14
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