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Sporosarcina saromensis sp. nov., an aerobic endospore-forming bacterium

¹ Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-Ku, Tokyo 113-0032, Japan
² Marine Biotechnology Institute Co. Ltd, 3-75-1 Heita, Kamaishi, Iwate 026-0001, Japan
³ Microbiological and Analytical Group, Food Research Laboratories, Mitsui Norin Co. Ltd, 223-1 Miyahara, Fujieda, Shizuoka 426-0133, Japan

Correspondence
Sun-Young An
an12su{at}hotmail.com

Two Gram-positive, endospore-forming, rod-shaped bacterial strains, HG645^T and HG711, were respectively isolated from surface water of a brackish lake and sediment of a fishery harbour in Japan and were subsequently characterized taxonomically using a polyphasic approach. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains HG645^T and HG711 are affiliated phylogenetically to the genus Sporosarcina, and they exhibit sequence similarities of 95.7–97.3 % to the type strains of Sporosarcina species. DNA–DNA relatedness between strain HG645^T and the type strain of the phylogenetically related species Sporosarcina aquimarina was less than 10 %. The DNA G+C content of strains HG645^T and HG711 were respectively 46.0 and 45.2 mol%. Major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The cell-wall peptidoglycan type (Lys–Glu), major cellular fatty acids (iso-C_{15 : 0} and anteiso-C_{15 : 0}) and quinone type (MK-7) of the isolates support their affiliation to the genus Sporosarcina. On the basis of phylogenetic analysis and physiological and chemotaxonomic data, the isolates represent a novel species of the genus Sporosarcina, for which the name Sporosarcina saromensis sp. nov. is proposed. The type strain is strain HG645^T (=MBIC08270^T=IAM 15429^T =KCTC 13119^T).

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