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Winogradskyella poriferorum sp. nov., a novel member of the family Flavobacteriaceae isolated from a sponge in the Bahamas

¹ Coastal Marine Laboratory/Department of Biology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
² Department of Biology, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, People's Republic of China
³ Center for Marine Science, University of North Carolina at Wilmington, USA

Correspondence
Pei-Yuan Qian
boqianpy{at}ust.hk

A Gram-negative, rod-shaped bacterium (designated strain UST030701-295^T) with fast gliding motility was isolated from the surface of the sponge Lissodendoryx isodictyalis in the Bahamas. Colonies of UST030701-295^T were yellow in colour, 2–4 mm in diameter, convex with a smooth surface and entire margins. UST030701-295^T was heterotrophic, strictly aerobic and required NaCl for growth (1·0–4·0 %). Growth was observed at pH 6·0–10·0 and at 12–44 °C. Phylogenetic analysis of the 16S rRNA gene sequence placed UST030701-295^T within the genus Winogradskyella of the family Flavobacteriaceae, sharing 94·7–95·8 % similarity with the three recognized members of the genus. The G+C content of the DNA was 32·8 mol% and the predominant fatty acids were iso-C_{15 : 1}, iso-C_{15 : 0}, iso-C_{15 : 0} 2-OH, iso-C_{15 : 0} 3-OH, iso-C_{16 : 0} 3-OH, C_{16 : 1}7 and iso-C_{17 : 0} 3-OH (together representing 75·4 % of the total); these data supported the affiliation of UST030701-295^T to the genus Winogradskyella. UST030701-295^T differed from the three recognized species of Winogradskyella in 7–17 traits. Molecular evidence together with phenotypic characteristics suggests that UST030701-295^T represents a novel species within the genus Winogradskyella, for which the name Winogradskyella poriferorum sp. nov. is proposed. The type strain is UST030701-295^T (=NRRL B-41101^T=JCM 12885^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain UST030701-295^T is AY848823.

A scanning electron micrograph of cells of strain UST030701-295^T and tables detailing the primers used for construction of the 16S rRNA gene sequences and results of carbohydrate metabolism tests are available as supplementary material in IJSEM Online.

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