1887

Abstract

A halophilic actinomycete strain, designated H55, was isolated from Saharan soil sampled in the Mzab region (Ghardaïa, southern Algeria) and was characterized in a taxonomic study using a polyphasic approach. The cell wall was determined to contain -diaminopimelic acid and the characteristic whole-cell sugars were arabinose and galactose. The predominant menaquinones were found to be MK-10(H) and MK-9(H). The predominant cellular fatty acids were determined to be anteiso-C, iso-C and iso-C. The diagnostic phospholipid detected was phosphatidylcholine. The morphological and chemotaxonomic characteristics of the strain were consistent with those of members of the genus , and 16S rRNA gene sequence analysis confirmed that strain H55 was a member of this genus. DNA–DNA hybridization values between strain H55 and the type strains of the nearest species of the genus , and , were clearly below the 70 % threshold. The genotypic and phenotypic data showed that the organism represents a novel species of the genus , for which the name sp. nov. is proposed, with the type strain H55 ( = DSM 45460 = CCUG 62965).

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2013-10-01
2021-12-01
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