Marinomonasvulgaris sp. nov., a marine bacterium isolated from seawater in a coastal intertidal zone of Zhoushan island

A Marinomonas-like, Gram-stain-negative, strictly aerobic and rod to ovoid-shaped bacterium, designated as strain A79(T), was isolated from the seawater mixtures of oyster shells and brown algae in a coastal intertidal zone of Zhoushan, China. The strain was positive for oxidase and catalase. Colonies grown on marine agar for 48 h were round, milky white, smooth and moist with the diameter of 2-3 mm. Growth was observed at 15-30 degrees C (optimum, 25celcius), pH 5.5-9.5 (optimum, pH 8.5) and with 0.5-8% (w/v) NaCl (optimum, 2-2.5%). The G + C content based on the genome sequence was 46.0%. The only respiratory quinone was Q-8. The main polar lipids contained phosphatidylglycerol, phosphatidylethanolamine, unidentified glycolipids, unidentified phospholipid and three unidentified lipids. The major fatty acids (> 10%) were C-16:0, Summed feature 3 (comprising C-16:1 omega 6c and/or C-16:1 omega 7c) and summed feature 8 (comprising C-18:1 omega 6c and/or C-18:1 omega 7c). The 16S rRNA gene sequence similarity between strain A79(T) and Marinomonaspollencensis IVIA-Po-185(T) was 97.4%, the similarities with other type strains of the genus Marinomonas were 93.8-96.7%. Based on the results, Marinomonas vulgaris sp. nov. was proposed as a novel species. The type strain is A79(T) (= MCCC 1K05799(T) = KCTC 82519(T) = JCM 34473(T)).

Automated summary

According to the physiological characteristics, genome sequence, and 16S rRNA gene sequence similarity of strain A79(T), a novel bacterium species named Marinomonas vulgaris sp. nov. was proposed. The type strain is A79(T) (= MCCC 1K05799(T) = KCTC 82519(T) = JCM 34473(T)).