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Pseudochrobactrum glaciei sp. nov., isolated from sea ice collected from Peter the Great Bay of the Sea of Japan

¹ Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Prospect 100 Let Vladivostoku, 159, Russia
² NODAI Culture Collection Center, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan

Correspondence
Lyudmila A. Romanenko
romanenko1{at}yahoo.com

An aerobic, Gram-negative, non-pigmented, non-motile bacterium, KMM 3858^T, was isolated from a sea-ice sample collected from Peter the Great Bay of the Sea of Japan, Russia, and subjected to a phenotypic and phylogenetic study. Comparative analyses based on the 16S rRNA and recA gene sequences placed strain KMM 3858^T within the genus Pseudochrobactrum. The major chemotaxonomic characteristics were found to be the presence of phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, an unknown aminolipid and phosphatidylcholine, major fatty acids C_{18 : 1}7c and C_{19 : 0} cyclo, and ubiquinone Q-10, confirming the affiliation of strain KMM 3858^T to the genus Pseudochrobactrum. On the basis of the phylogenetic analysis and the physiological and biochemical characterization, strain KMM 3858^T should be classified as representing a novel species of the genus Pseudochrobactrum, for which the name Pseudochrobactrum glaciei sp. nov. is proposed. The type strain is strain Pi26^T (=KMM 3858^T=NRIC 0733^T=JCM 15115^T).

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA and recA gene sequences of strain KMM 3858^T are AB369864 and AB369865, respectively.

Maximum-parsimony phylogenetic trees based on 16S rRNA and recA gene sequences, a two-dimensional thin-layer chromatogram of polar lipids of strain KMM 3858^T and a table detailing the fatty acid composition of strain KMM 3858^T and recognized Pseudochrobactrum and Ochrobactrum species are available as supplementary material with the online version of this paper.

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