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