Abstract
An.ae.ro.ar'cus. Gr. pref. an not; Gr. n. aer air, anaero not (living) in air; L. masc. n. arcus a bow, arc; N.L. masc. n. Anaeroarcus a bow not living in air.
Firmicutes / “Clostridia” / Clostridiales / Veillonellaceae / Anaeroarcus
Cells are curved or spiral-shaped rods, motile and Gram-stain-negative. Endospores are not formed. Obligately anaerobic chemo-organotroph. A limited range of organic acids, amino acids, carbohydrates, and alcohols are fermented mainly to acetate, propionate, succinate, and propanol. Yeast extract, Casamino acids, peptone, and Biotrypticase support growth. The modified naphthoquinone “Lipid F”, with octa- and nona-prenologues (ratio 4:1) as the predominating isoprenologues, and b-type cytochromes are present. Ferric iron, but not sulfate or nitrate, is reduced. Mesophilic.
DNA G+C content (mol%): ~48.
Type species: Anaeroarcus burkinensis (Outtara, Traore and Garcia 1992) Strömpl, Tindall, Jarvis, Lünsdorf, Moore and Hippe 1999, 1870VP (Anaerovibrio burkinabensis Outtara, Traore and Garcia 1992, 395).
