sp. nov. and sp. nov., two novel with antimicrobial activity isolated from lake sediment.

Two novel , designated strains YC419 and YC504, were isolated from a sediment sample collected from Lake Yeniçağa, Bolu Province, Turkey. Chemotaxonomic and morphological characteristics of isolates were found to be typical of members of the genus . Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain YC419 was most closely related to NBRC 13094 (99.

sp. nov., isolated from hazelnut orchard soil.

A novel actinobacteria, isolate A7024, was isolated from commercial hazelnut orchard soil sample which was collected at Duzce, West Black Sea region, Turkey. A polyphasic taxonomic study was carried out to determine the status of this isolate. The phylogenetic tree reconstructed using the neighbour-joining algorithm based on 16S rRNA gene sequences indicated that isolate A7024 was positioned within the members of the genus with the highest sequence similarity (97.

Streptomyces boluensis sp. nov., isolated from lake sediment.

A novel Gram-stain positive, aerobic, non-motile actinobacterium, designated strain YC537, was isolated from lake sediment collected from Yenicaga Lake, Bolu, Turkey, and subjected to a polyphasic taxonomic approach. The organism had phylogenetic, chemotaxonomic, cultural and morphological properties consistent with its classification in the genus Streptomyces. 16S rRNA gene sequence analysis of strain YC537 showed that it is closely related to the type strain of Streptomyces ziwulingensis F22 (97.