Mesonia maritima sp. nov., isolated from seawater of the South Sea of Korea.

A yellow-pigmented bacterial strain, originally designated 15-S14-6T, was isolated from the southern coastal waters of Korea and was subjected to taxonomic study using a polyphasic approach. Strain 15-S14-6T was Gram-staining-negative, flagellated, rod-shaped and aerobic. The strain grew optimally at 25-30 °C, in the presence of 2 % (w/v) NaCl and at pH 7.

Umboniibacter roseus sp. nov., isolated from coastal seawater.

A Gram-reaction-negative, non-motile, strictly aerobic, dark pink-pigmented and rod-shaped bacterial isolate, designated 14-121-B13T, was isolated from surface seawater off the coast of the South Sea at Namhae-gun, Republic of Korea. Cells were catalase- and oxidase-positive and required NaCl for growth. Strain 14-121-B13T grew optimally at 30 °C, in the presence of 2 % (w/v) NaCl and at pH 7.

Donghicola tyrosinivorans sp. nov., a tyrosine-degrading bacterium isolated from seawater.

A Gram-stain-negative, non-motile, aerobic bacterium, strain 13-93-B1T, was isolated from seawater off Jeju Island, Republic of Korea, and was subjected to polyphasic taxonomic study. Cells formed ivory colonies and were ovoid to rod-shaped. The strain was catalase-positive, oxidase-negative and grew optimally at 30 °C, in the presence of 1-2 % (w/v) NaCl and at pH 7.

Lewinella xylanilytica sp. nov., a member of the family Saprospiraceae isolated from coastal seawater.

An orange-pigmented bacterium, designated strain 13-9-B8T, was isolated from a seawater sample collected at Marado, Jeju Island, South Korea. The novel strain was Gram-staining-negative, non-motile, non-gliding, rod-shaped and aerobic. A phylogenetic analysis based on 16S rRNA gene sequences revealed that the strain clustered with members of the genus Lewinella of the family Saprospiraceae in the phylum Bacteroidetes and was most closely related to the species Lewinella marina (95.

Lutibacter oricola sp. nov., a marine bacterium isolated from seawater.

A bacterial strain, UDC377(T), was isolated from seawater samples collected at Seo-do on the coast of Dokdo island in the East Sea, and was subjected to taxonomic study using a polyphasic approach. Strain UDC377(T) was pale-yellow, Gram-staining-negative, non-motile, rod-shaped and aerobic. The strain grew optimally at 25-28 °C, in the presence of 2 % (w/v) NaCl and at pH 7.

Shewanella dokdonensis sp. nov., isolated from seawater.

A novel bacterial strain, designated UDC329(T), was isolated from a sample of seawater collected at Dong-do, on the coast of Dokdo Island, in the East Sea of the Republic of Korea. The Gram-staining-negative, motile, facultatively anaerobic, non-spore-forming rods of the strain developed into dark orange-yellow colonies. The strain grew optimally between 25 and 30 °C, with 1% (w/v) NaCl and at pH 7.