(microbiology) A genus of gram-negative, aerobic rods and cocci of uncertain affiliation; cells are motile, and species are commonly found in the intestinal tract of vertebrates.
A genus of saprophytic obligately aerobic bacilli occasionally found in the intestines of vertebrates or in dairy products and sometimes in nosocomial infections. A. fecalis is now called Bordetella avium.
(literally, “alkali-generating”) aerobic, gram-negative eubacteria, commonly found in invertebrate intestinal tracts and normally occurring on the skin.
| Alcaligenes | |
|---|---|
| Alcaligenes faecalis. Flagella stain. | |
| Scientific classification | |
| Kingdom: | Bacteria |
| Phylum: | Proteobacteria |
| Class: | Beta Proteobacteria |
| Order: | Burkholderiales |
| Family: | Alcaligenaceae |
| Genus: | Alcaligenes Castellani & Chalmers 1919 |
| Species | |
|
A. aquatilis |
|
Alcaligenes is a genus of Gram-negative, aerobic, rod-shaped bacteria. The species are motile with one or more peritrichous flagella.
Alcaligenes species have been used for the industrial production of non-standard amino acids; A. eutrophus also produces the biopolymer polyhydroxybutyrate (PHB).
They are rods,coccal rods, or cocci sized at about 0.5-1.0 x 0.5-2.6. They are obligately aerobic, but some can undergo anaerobic respiration if nitrate is present. They tend to be colorless. They typically occur in the soil and water, and some live in the intestinal tract of vertebrates. Samples from blood, urine, feces, discharge from ears, spinal fluid and wounds have produced this type of bacteria. Referenced from Holt.
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