A Gram-positive, rod-shaped, strictly aerobic, spore-forming, moderately halophilic bacterium, designated strain SSK2-2, was isolated from fermented shrimp paste (ka-pi) produced in Thailand. It contained MK-7 as the predominant menaquinone and -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-C and anteiso-C. 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 SSK2-2 was most closely related to KCTC 3821 with 98.7 % sequence similarity. Based on phenotypic and molecular features combined with DNA–DNA hybridization results (≤24.9 % with KCTC 3821), this strain represents a novel species of the genus for which the name sp. nov. is proposed; the type strain is SSK2-2 (=KCTC 13177=PCU 300=TISTR 1858).


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Cellular fatty acid compositions of strain SSK2-2 and related taxa. [PDF](45 KB)

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