Anaerostipes is a bacterial genus under Lachnospiraceae family. Nonsporeforming, nonmotile rods, sometimes in chains of 2–4 cells. Gram positive in exponential phase but not stationary-phase cultures. Nonmotile. Strictly anaerobic and both catalase- and oxidase-negative. Nonhemolytic. Cells produce mainly acetic, lactic, and butyric acids from glucose. Arginine dihydrolase, phosphoamidase, and α-galactosidase are produced. Gelatin and urea are not hydrolyzed; indole is not produced. Positive for nitrate reduction. DNA G + C content (mol%): 45.5–46.
This genus contains microbial species that can reside in the human gastrointestinal tract. [PMC 4262072]
Microbial Abundance Data: Anaerostipes (Percent of total population with standard deviation [PMID: 22698087])