Lysinibacillus meyeri sp. nov., isolated from a medical practice.

A gram-positive, oxidase- and catalase-positive, strictly aerobic and motile bacterium, designated WS 4626(T), was isolated from a medical practice. Spherical endospores were formed terminally in swollen rods. The genomic DNA G+C content was 37.1 mol%. Cells contained iso-C15 : 0, anteiso-C15 : 0, iso-C17 : 1ω10c, anteiso-C17 : 0 and iso-C17 : 0 as the predominant cellular fatty acids and MK-7 and MK-6 as the major isoprenoid quinones. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol, the cell-wall peptidoglycan was type A4α, L-Lys-D-Asp and the major cell-wall sugar was xylose. The closest phylogenetic relatives were Lysinibacillus xylanilyticus XDB9(T) (96.7 % 16S rRNA gene sequence similarity) and Lysinibacillus odysseyi 34hs-1(T) (96.5 %). DNA-DNA relatedness between the isolate and L. odysseyi DSM 18869(T) was very low (6 %). On the basis of the data presented, strain WS 4626(T) represents a novel species of the genus Lysinibacillus, for which the name Lysinibacillus meyeri sp. nov. is proposed. The type strain is WS 4626(T) ( = DSM 25057(T) = LMG 26643(T)).

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