Streptomyces hokutonensis sp. nov., a novel actinomycete isolated from the strawberry root rhizosphere.

A polyphasic approach was used to determine the taxonomic position of actinomycete strain R1-NS-10(T), which was isolated from a sample of strawberry root rhizosphere obtained from Hokuto, Yamanashi, Japan. Strain R1-NS-10(T) was Gram-staining-positive and aerobic, and formed brownish-white aerial mycelia and grayish-brown substrate mycelia on ISP-2 medium. The strain grew in the presence of 0-5% (w/v) NaCl and optimally grew without NaCl.

Actinomycetospora iriomotensis sp. nov., a novel actinomycete isolated from a lichen sample.

An actinomycete strain, IR73-Li102(T), was isolated from a lichen sample obtained from Iriomote Island, Japan, and subsequently characterized using a polyphasic approach. Comparative 16S rRNA gene sequence analysis revealed that strain IR73-Li102(T) had the highest sequence similarities with Actinomycetospora chiangmaiensis YIM 0006(T) (98.3%), A.

Actinomycetospora rishiriensis sp. nov., isolated from a lichen.

An actinomycete, strain RI109-Li102(T), was isolated from a lichen sample obtained from Rishiri Island in Japan. Cells of strain RI109-Li102(T) were Gram-positive, aerobic and non-motile and formed bud-like spore chains. The isolate grew with 0-3 % (w/v) NaCl, at pH 5-9 and at 10-30 °C (optimum 30 °C).