B lastococcus

Abstract

Blas.to.coc'cus. Gr. masc. n. blastos bud, shoot; N.L. masc. n. coccus (from Gr. masc. n. kokkos grain, seed) coccus; N.L. masc. n. Blastococcus budding coccus. Actinobacteria / Actinobacteria / Geodermatophilales / Geodermatophilaceae / Blastococcus Gram‐stain‐positive; coccoid; occurs singly, in pairs, or in tetrads. Often reproducing by budding and multiple fission , giving rise to a variety of cell forms . Strains may form motile zoospores . Formation of buds on rods is common, but not universal. Membranous bodies, 1–4 per cell, which are linked to the cytoplasmic membrane, may be present. Aerobic; some strains may be microaerophilic. Strains have been isolated from surfaces of marble and limestone, sea and sand sediments, desert soils, and plant leaves. Peptidoglycan contains meso ‐A 2 pm as diagnostic diamino acid. The predominant menaquinone is MK‐9 ( H 4 ). The polar lipid profile consists of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, and phosphatidylinositol; phosphatidylethanolamine and several unidentified lipids may occur. The predominant fatty acid is iso‐C 16:0 . Phylogenetically, a member of the family Geodermatophilaceae . DNA G + C content ( mol %): 72.3–74.6 (HPLC, WGS). Type species : Blastococcus aggregatus Ahrens and Moll 1970, 264 AL emend. Urzì, Salamone, Schumann, Rohde and Stackebrandt 2004a, 257 emend. Hezbri, Louati, Nouioui, Gtari, Rohde, Spröer, et al. 2016, 4869.