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PlanococcusRANK: GenusTAXONOMY: Bacteria -> Terrabacteria group -> Firmicutes -> Bacilli -> Bacillales -> Planococcaceae -> Planococcus OVERVIEW: Cells coccoid, 1.0–1.2 µm in diameter, occurring singly, in pairs, in groups of three, or as tetrads or clumps of cells. Gram-positive to Gram-variable. Motile. The cells have one or two flagella. Chemo-organotrophic, respiratory metabolism. Aerobic. Catalase-positive. Lack endospores. Colonies are circular, slightly convex, smooth, glistening, and yellow-orange in color. Halotolerant; can tolerate 1–17% NaCl and are occasionally halophilic. Most strains are oxidase-negative and hydrolyze gelatin but not starch. Do not reduce nitrate. Growth factors are usually not required. Either psychrophilic or mesophilic. Distributed in sea water, marine clams, fish, shrimp, prawns, cyanobacterial mats, freshwater ponds, sulfur springs, and glacial soil. DNA G+C content (mol%): 39–48 (Tm, Bd). Type species: Planococcus citreus This genus contains microbial species that can reside in the human gastrointestinal tract. [PMC 4262072]
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