 | |||
GordoniaRANK: GenusTAXONOMY: Bacteria -> Terrabacteria group -> Actinobacteria -> Actinobacteria -> Corynebacteriales -> Gordoniaceae -> Gordonia OVERVIEW: Aerobic, Gram-stain-positive to Gram-stain-variable, nonspore-forming actinomycetes that are usually partially acid–alcoholfast. Nonmotile, short rods and cocci (0.5–1.0 × 1.0–2.5 µm) occur singly, in pairs, in V-shaped arrangements, or as short chains. Elementary branched hyphae which fragment into rod- and coccoid-like elements are formed by some species. Colonial appearance ranges from convex, shiny and smooth to rough, matt and folded with irregular margins. Colonies may be cream, beige, light yellow, or tan through to apricot, orange, pink, or red. Chemo-organotrophic with an oxidative type of metabolism. Mycobactins are formed. Catalase-positive, arylsulfatase-negative, and sensitive to lysozyme. Most strains grow well between 20 and 37°C. DNA G+C content (mol%): 63–69 (HPLC, Tm). Type species: Gordonia bronchialis This genus contains microbial species that can reside in the human gastrointestinal tract. [PMC 4262072] |