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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 58, Issue 7

sp. nov., an alkaliphilic actinomycete isolated from alkali lake soil in China Free

Abstract

A strain (HBUM 20028) isolated from alkali lake soil in China was studied by a polyphasic taxonomic approach. The strain produced abundant aerial and substrate mycelia. Long spore chains were borne on the aerial mycelium, and the substrate mycelium was often arranged in a shape like a fence or palisade. The special characteristic of strain HBUM 20028 was its abundant growth under alkaline conditions, at pH 8.0–14.0. The cell wall of strain HBUM 20028 contained -diaminopimelic acid but no diagnostic sugar. Major phospholipids included diphosphatidylglycerol and phosphatidylcholine. The major menaquinones were MK-10(H), MK-10(H) and MK-10(H). The major cellular fatty acids were iso-C (31.66 %), anteiso-C (14.85 %) and C 9 (14.73 %). All of these characters consistently indicated that strain HBUM 20028 belongs to the genus . DNA–DNA hybridization between the strain and type strains of related species gave relatedness values far below 70 %. Based on 16S rRNA gene sequence analysis, DNA relatedness and phenotypic characteristics, a novel species with the name sp. nov. is proposed. The type strain is HBUM 20028 (=DSM 45023 =CGMCC 4.2135).

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2008-07-01
2025-04-19
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Nocardiopsis valliformis sp. nov., an alkaliphilic actinomycete isolated from alkali lake soil in China
Int J Syst Evol Microbiol 58, 1542 (2008); https://doi.org/10.1099/ijs.0.65090-0
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