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Int J Syst Evol Microbiol 59 (2009), 2254-2259; DOI  10.1099/ijs.0.007161-0
© 2009 International Union of Microbiological Societies

Oceanobacillus kapialis sp. nov., from fermented shrimp paste in Thailand

Sirilak Namwong1, Somboon Tanasupawat2, Keun Chul Lee3 and Jung-Sook Lee3

1 Department of Biotechnology, Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok 10300, Thailand
2 Department of Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
3 Korean Collection for Type Cultures (KCTC), Biological Resource Center (BRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yusong, Daejeon 305-806, Republic of Korea

Correspondence
Somboon Tanasupawat
Somboon.T{at}chula.ac.th

A Gram-positive, rod-shaped, strictly aerobic, spore-forming, moderately halophilic bacterium, designated strain SSK2-2T, was isolated from fermented shrimp paste (ka-pi) produced in Thailand. It contained MK-7 as the predominant menaquinone and meso-diaminopimelic acid in the cell-wall peptidoglycan. The isolate grew at 8–43 °C, pH 6–9 and in 0.5–24 % (w/v) NaCl (optimum, 6–14 % NaCl). The major cellular fatty acids were anteiso-C15 : 0 and anteiso-C17 : 0. Phosphatidylglycerol and diphosphatidylglycerol were the major polar lipid components. The DNA G+C content was 39.7 mol%. Comparative 16S rRNA gene sequence analyses showed that strain SSK2-2T was most closely related to Oceanobacillus picturae KCTC 3821T with 98.7 % sequence similarity. Based on phenotypic and molecular features combined with DNA–DNA hybridization results (≤24.9 % with O. picturae KCTC 3821T), this strain represents a novel species of the genus Oceanobacillus for which the name Oceanobacillus kapialis sp. nov. is proposed; the type strain is SSK2-2T (=KCTC 13177T=PCU 300T=TISTR 1858T).

Abbreviations: DAP, diaminopimelic acid

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain SSK2-2T is AB366005.

A table showing the cellular fatty acid compositions of strain SSK2-2T and related taxa is available as supplementary material with the online version of this paper.






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