1887

Abstract

A novel actinomycete, strain X4, was isolated from a phosphate mine in Youssoufia, 100 km north of Marrakesh, Morocco. The taxonomic status of this strain was evaluated by a polyphasic approach. Strain X4 had white aerial mycelium with spore chains bearing smooth-surfaced spores and did not produce diffusible pigments. Chemotaxonomic analysis showed that the cell wall of strain X4 contained -diaminopimelic acid and glycine. Phylogenetic analysis based on the almost complete 16S rRNA gene sequence indicated that strain X4 belongs to the Group I streptomycetes, branching off next to NRRL B-2714 and M338-M1. DNA–DNA relatedness and phenotypic data enabled strain X4 to be distinguished from the phylogenetically most closely related type strains. It is therefore proposed that strain X4 represents a novel species of the genus, for which the name sp. nov. is proposed; the type strain is X4 ( = CCMM B709  = DSM 41920).

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2011-05-01
2020-01-18
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