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Syst Appl Microbiol. 2007 Jul;30(5):371-5. Epub 2007 Jan 5.

Tateyamaria omphalii gen. nov., sp. nov., an alpha-Proteobacterium isolated from a top shell Omphalius pfeifferi pfeifferi.

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Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-0032, Japan.


A Gram-negative, strictly aerobic, coccoid to short rod-shaped marine bacterium strain MKT107(T) was isolated from the molluscan top shell Omphalius pfeifferi pfeifferi collected on the coast of Japan. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain MKT107(T) constitutes a new lineage in alpha-Proteobacteria related to the genera Nereida, Roseobacter, Staleya, Oceanibulbus and Sulfitobacter. Strain MKT107(T) was found to require salt for its growth and to be mesophilic. It contained 18:1omega7c and 16:0 as major cellular fatty acids and 3-OH 10:0 and 3-OH 12:0 as hydroxy fatty acids. The DNA base composition of the isolate was 61.6 mol% G+C. The major quinone was Q-10. Sufficient differences existed to distinguish this strain from currently recognized bacterial genera. Therefore, the isolate is classified as representing a new genus and species, Tateyamaria omphalii gen. nov., sp. nov. (type strain MKT107(T) =IAM 15108(T) =KCTC 12333(T); GenBank accession no. AB193438).

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