Morphology | Acetovibrio |
CELLULAR |
Staining | Gram-negative |
Morphology | Straight to slightly curved rods, 0.5-0.9 by 1.5-10.0 um occurring singly, in pairs and in chains of cells up to 40 um long.,. |
Motility | Motile by means of a single flagellum located about one-third of the distance from pole to pole or by multiple flagella which are arranged linearly and often fascicled, emanating from the concave side of the cells in both cases. |
Specialized structures | nonsporeforming |
Division |
COLONIAL |
Solid surface |
Liquid |
Growth Parameters | Acetovibrio |
PHYSIOLOGICAL |
Tropism | Chemoorganotrophic May or may not metabolize peptone. Acetic acid is the sole or major organic acid end product of carbohydrate fermentation |
Oxygen | Obligately anaerobic. |
pH | |
Temperature | Optimum temperature 35- 37`C |
Requirements | |
Products | Formic acid is produced by some strains. Propionic, butyric, succinic and lactic acids are not formed. The other products of carbohydrate fermentation are H2, CO2, and ethanol. |
Enzymes | |
Unique features |
ENVIRONMENTAL |
Habitat | sewage sludge and pig feces |
Lifestyle | |
Pathogenicity |
Distribution |
Genome | Acetovibrio |
G+C Mol % | 37-40 (UV spectroscopy and Tm). |
Reference | Acetovibrio |
First citation | Patel, G.B.,A.W. Khan, B. J. Agnew and J.R. Colvin. 1980. Isolation and characterization of an anerobic, cellullytic microorganism Acetovibrio cellulolyticus gen. nov. sp. nov. IJSB 30: 179-185 |
Emended | Robinson ,I. M. and A.E. Ritchie. 1981. Emendation of Acetovibrio and description of Acetovibrio ethanolgignens, a new species from the colons of pigs with dysentry. IJSB 31:333-338 |
The Prokaryotes | p |
Bergey's Systematatic | p 658 G. B. Patel |
Bergey's Determinative | p 291 |
References |