Cross Index | Acidaminococcus fermentans |
SuperSet | Prokaryote, Eubacteria Anaerobic Gram-Negative Cocci |
Compare | Acidaminococcus fermentans, Megasphaera, Syntrophococcus sucromutans Veillonella |
Contrast | Archaea Gram positive cocci |
Subset |
Morphology | Acidaminococcus fermentans |
CELLULAR |
Staining | Gram-negative |
Morphology | Cocci, 0.6-1.0 um in diameter, often occurring as oval or kidney-shaped diplococci. |
Motility | Non-motile; flagella are not present |
Specialized structures | Nonsporulating.. |
Division |
COLONIAL |
Solid surface |
Liquid |
Growth Parameters | Acidaminococcus fermentans |
PHYSIOLOGICAL |
Tropism | Chemoorganotrophic; amino acids, especially glutamate, are the main energy sources. Pyruvate, lactate, fumarate, malate, succinate and citrate are not used as energy sources |
Oxygen | Anaerobic; no growth on the surface of agar media incubated in the air |
pH | Optimum pH, 7.0 |
Temperature | Optimum temperature, 30-37`C. |
Requirements | Nutritional requirements are complex |
Products | Only 40% of strains catabolize glucose and the reaction is weak. In amino acid-containing media, acetic and butyric acids accumulate in a molar ratio of 2:1; CO2 is also formed, but H2 and propionate are not detectable |
Enzymes | Oxidase- and catalase-negative |
Unique features |
ENVIRONMENTAL |
Habitat | Isolated from the intestinal tract of the pig and man |
Lifestyle | |
Pathogenicity |
Distribution |
Genome | Acidaminococcus fermentans |
G+C Mol % | 56 (Bd) |
Reference | Acidaminococcus fermentans |
First citation | Rogosa, M. 1969. Acidominococcus fermentans sp. nov., anaerobic Gram-negative diplococci using amino acids as the sole energy source for growth. J. Bacteriol 98: 756-766 |
The Prokaryotes | p |
Bergey's Systematatic | p 684 Rogosa, M |
Bergey's Determinative | p 347 |
References |