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Alteromonas addita sp. nov.

¹ Swinburne University of Technology, PO Box 218, Hawthorn, Victoria 3122, Australia
² Pacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Pr. 100 Let Vladivostoku 159, Russian Federation
³ School of Agricultural Science, University of Tasmania, Private Bag 54, Hobart, Tasmania 7001, Australia
⁴ S. N. Winogradsky Institute of Microbiology of the Russian Academy of Sciences, 117312 Moscow, Russian Federation
⁵ Institute of Marine Biology of the Far-Eastern Branch of the Russian Academy of Sciences, 690041, Vladivostok, Russian Federation
⁶ V. I. Il'ichev Pacific Oceanological Institute of the Far-Eastern Branch of the Russian Academy of Sciences, Baltiiskaya Str. 43, 690017, Vladivostok, Russian Federation

Correspondence
Elena P. Ivanova
eivanova{at}swin.edu.au

On the basis of phenotypic, genotypic characteristics and analysis of 16S rRNA gene sequences, a novel species belonging to the genus Alteromonas is described. A non-pigmented, motile, Gram-negative bacterium designated R10SW13^T was isolated from sea water samples collected in Chazhma Bay (Sea of Japan, Pacific Ocean). The novel organism mainly grew between 4 °C and 37 °C, was neutrophilic and slightly halophilic, tolerating up to 10 % NaCl. Strain R10SW13^T was haemolytic and was able to degrade starch and Tween 80 and to degrade gelatin and agar weakly, but did not degrade casein. Phosphatidylethanolamine (44·3±0·9 %) and phosphatidylglycerol (55·7±0·9 %) were the predominant phospholipids. The major fatty acids formed were typical for the genus Alteromonas, including 16 : 0, 16 : 1-7 and 18 : 1-7. The G+C content of the DNA was 43·4 mol%. DNA–DNA hybridization experiments showed 38–53 % binding with the DNAs of type strains of phylogenetically related species of the genus Alteromonas, namely: Alteromonas macleodii, Alteromonas marina, Alteromonas stellipolaris, Alteromonas litorea, ‘Alteromonas macleodii subsp. fijiensis’ and ‘Alteromonas infernus’. Based on these results, a novel species, Alteromonas addita sp. nov., is proposed, with strain R10SW13^T (=KMM 3600^T=KCTC 12195^T=LMG 22532^T) as the type strain.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of Alteromonas addita R10SW13^T is AY682202.

DNA G+C contents and DNA–DNA relatedness values for Alteromonas species including A. addita are available as supplementary material in IJSEM Online.

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