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LautropiaRANK: GenusTAXONOMY: cellular organisms -> Bacteria -> Proteobacteria -> Betaproteobacteria -> Burkholderiales -> Burkholderiaceae -> Lautropia OVERVIEW: Cocci may occur in at least three forms: (1) encapsulated, nonmotile 1–2 µm in diameter, forming aggregates of 10 to >100 cells; (2) unencapsulated, nonaggregated 1–2 µm in diameter, motile by a tuft of three to nine flagella; and (3) large (>5 µm in diameter), spherical nonaggregated, nonmotile. Do not form endospores. Gram negative. Nonpigmented. Grow only on enriched media. Facultative, but grow best under aerobic conditions. CO2 is not required. Growth occurs between 30 and 44°C. Oxidase, catalase, and urease positive. A polysaccharide is produced on sucrose agar. Various carbohydrates are fermented. Belongs phylogenetically to a separate branch of the class Betaproteobacteria. Habitat: the oral cavity and upper respiratory tract of humans. The mol% G + C of the DNA is: 65. Type species: Lautropia mirabilis This genus contains microbial species that can reside in the human gastrointestinal tract. [PMC 4262072] |