Spirosoma migulaei sp. nov., isolated from soil.

A Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, aerobic bacterium, designated 15J9-8, was isolated from soil on Jeju Island, Republic of Korea. The isolate was able to grow between 10 and 30°C, pH 6.5-8.

Spirosoma terrae sp. nov., Isolated from Soil from Jeju Island, Korea.

The taxonomic position of bacterial strain, designated 15J9-4, recovered from a beach soil sample on Jeju Island, South Korea, was established using a polyphasic approach. Strain 15J9-4 was assigned to phylum Bacteroidetes within the family Cytophagaceae based on 16S rRNA gene similarities. The closest phylogenetic relatives with validly published names were Spirosoma panaciterrae Gsoil 1519 (94.

Spirosoma litoris sp. nov., a bacterium isolated from beach soil.

A Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, aerobic bacterium, designated 15J16-2T3A, was isolated from beach soil on Jeju Island, South Korea. Strain 15J16-2T3A grew at 10-37 °C (optimum growth at 25 °C) and pH 6.5-8.

Spirosoma koreense sp. nov., a species of the family Cytophagaceae isolated from beach soil.

A Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, aerobic bacterium, designated 15J8-5, was isolated from beach soil on Jeju Island, Republic of Korea. The isolate grew at 10-37 °C (optimal 25 °C), pH 6-8 (optimal pH 7) and in the presence of 0-1 % (w/v) NaCl. The results of comparative 16S rRNA gene sequence analysis indicated that strain 15J8-5 represented a member of the family Cytophagaceae, phylum Bacteroidetes and was most closely related to Spirosoma knui 15J8-12 (93.

Flaviaesturariibacter terrae sp. nov., isolated from mountain soil.

A Gram-stain-negative, aerobic, rod-shaped, non-motile and pale yellow-pigmented bacterial strain, designated as HY03T, was isolated from mountain soil. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain HY03T belonged to the family Chitinophagaceae in the phylum Bacteroidetes and was most closely related to Flaviaesturariibacter amylovorans GCR0105T at a similarity of 95.4 %.