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  • Title: Streptomonospora halophila sp. nov., a halophilic actinomycete isolated from a hypersaline soil.
    Author: Cai M, Zhi XY, Tang SK, Zhang YQ, Xu LH, Li WJ.
    Journal: Int J Syst Evol Microbiol; 2008 Jul; 58(Pt 7):1556-60. PubMed ID: 18599694.
    Abstract:
    An actinomycete strain, designated YIM 91355(T), was isolated from a soil sample collected from a hypersaline soil in Xinjiang Province, China, and its taxonomic position was investigated by using a polyphasic approach. The strain grew well on most media tested and no diffusible pigment was produced. The aerial mycelium of this organism was well developed but not fragmented and, at maturity, formed short chains of spores. Substrate mycelium was branched with non-fragmenting hyphae and single, oval to round spores were formed, borne on sporophores. Strain YIM 91355(T) contained meso-diaminopimelic acid as the diagnostic amino acid. The purified cell-wall hydrolysate contained galactose. The predominant menaquinones were MK-10(H(8)) (43.2 %), MK-10(H(6)) (17.7 %) and MK-11(H(8)) (10.4 %). Phospholipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol mannosides, phosphatidylcholine, phosphatidylinositol and an unidentified phospholipid. The major fatty acids were i-C(16 : 0), ai-C(17 : 0), 10-methyl C(17 : 0) and 10-methyl C(18 : 0). The G+C content of the genomic DNA was 72.1 mol%. Phylogenetic analysis indicated that the isolate belongs to the genus Streptomonospora of the family Nocardiopsaceae. Based on phenotypic and genotypic data, it is concluded that strain YIM 91355(T) represents a novel species of the genus Streptomonospora, for which the name Streptomonospora halophila sp. nov. (type strain YIM 91355(T) =DSM 45075(T) =KCTC 19236(T)) is proposed.
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