| Cross Index | Veillonella |
| SuperSet | Prokaryote, Eubacteria Anaerobic Gram-Negative Cocci This genus belongs in the family Veillonellaceae_. |
| Compare | Acidaminococcus fermentans, Megasphaera, Syntrophococcus sucromutans Veillonella |
| Contrast | Archaea Gram positive cocci |
| Subset |
| Morphology | Veillonella |
| CELLULAR |
| Staining | Gram-negative. |
| Morphology | Cocci, 0.3-0.5 um in diameter, appearing by light microscopy as diplococci, masses and short chains. |
| Motility | Nonmotile |
| Specialized structures | Nonsporulating. |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | Veillonella |
| PHYSIOLOGICAL |
| Tropism | Chemoorganotrophic. Pyruvate, lactate, malate, fumarate and oxaloacetate are fermented; carbohydrates and polyols are not fermented, except for one species where fructose fermentation has been detected |
| Oxygen | Anaerobic. |
| pH | Optimum pH, 6.5-8.0. |
| Temperature | Optimum temperature, 30-37`C. |
| Requirements | Nutritional requirements are complex. CO2 is required for growth |
| Products | Acetate, propionate, CO2 and H2 are produced from lactate |
| Enzymes | Oxidase-negative. Catalase-negative, but some species produce an atypical catalase lacking porphyrin. |
| Unique features | .... |
| ENVIRONMENTAL |
| Habitat | Parasitic in the mouths and in the intestinal andrespiratory tracts of man and other animals |
| Lifestyle | |
| Pathogenicity | Parasitic |
| Distribution |
| Genome | Veillonella |
| G+C Mol % | 36-43 (Tm) or 40 to 44 (Bd). |
| Reference | Veillonella |
| First citation | Prevot, A.R.1933. Etdues des systematique bacterienne. I. Lois generales. II Cocci anaerobeius. Ann. Sci. Natur. Zool. Biol. Anim. 15: 23-260 |
| Emended | Rogosa, M. 1965. The genus Veillonella IV. Serological groupings and genus and species emendations J. Bacteriol. 87: 162-170 |
| The Prokaryotes | P |
| Bergey's Systematatic | p 681 M. Rogosa |
| Bergey's Determinative | p 348 |
| References |