Abstract
An.ae.ro.co.lum'na. Gr. prep. an not; Gr. n. aer air; anaero not living in air; L. fem. n. columna column; N.L. fem. n. Anaerocolumna a column not living in air.
Firmicutes / Clostridia / Clostridiales / Lachnospiraceae / Anaerocolumna
The genus Anaerocolumna includes four species. Cells stain Gram-positive. Motile. Strictly anaerobic, fermentative metabolism. Slightly curved to straight rods, occurring singly or in pairs. Produces terminal, spherical spores, swelling cells. Optimum temperature for growth is 30–35°C. Chemoorganotrophic, using a wide variety of compounds including sugars and organic acids as energy sources. Produces acetate, ethanol, and H2 from glucose as fermentation end products. Decomposes cellulose or xylan. Catalase is absent. C16:0, C16:0 dimethylacetal (DMA), C16:1 ω7c DMA, or C18:1 ω7c DMA are present as predominant cellular fatty acids (CFAs). The cell-wall peptidoglycan contains meso-DAP as a diagnostic amino acid. Belongs to the family Lachnospiraceae. Members of the genus have been isolated mainly from methanogenic reactors or sewage sludge.
DNA G + C content (mol%): 33–41 (HPLC, T m, genome).
Type species: Anaerocolumna cellulosilytica Ueki, Ohtaki, Kaku and Ueki 2016, 2942VP.
