Image Source: WIKIPEDIA
Some of the characteristics are as follows:
| Basic Characteristics | Properties (Alcaligenes faecalis subsp. faecalis) |
| Bromocresol purple milk | Alkaline reaction |
| Capsule | Negative (-ve) |
| Catalase | Positive (+ve) |
| Citrate | Positive (+ve) |
| Flagella | Positive (+ve) |
| Gelatin Hydrolysis | Negative (-ve) |
| Gram Staining | Gram-negative (-ve) |
| Growth in 7% NaCl | Positive (+ve) |
| H2S | Negative (-ve) |
| Hemolysis | Positive (+ve) |
| Indole | Negative (-ve) |
| Motility | Positive (+ve) |
| Nitrate Reduction | Negative (-ve) |
| Nitrite Reduction | Positive (+ve) |
| Oxidase | Positive (+ve) |
| Pigment | Negative (-ve) |
| Shape | Rods or coccobacilli |
| Spore | Negative (-ve) |
| Tween 80 | Negative (-ve) |
| Urease | Negative (-ve) |
Fermentation of |
|
| Acetate | Positive (+ve) |
| Adonitol | Negative (-ve) |
| Adipate | Negative (-ve) |
| Alanine | Positive (+ve) |
| Arabinose | Negative (-ve) |
| Arabitol | Negative (-ve) |
| Cellulose | Negative (-ve) |
| DNase | Negative (-ve) |
| Fructose | Negative (-ve) |
| Galactose | Negative (-ve) |
| Glucose | Negative (-ve) |
| Gluconate | Negative (-ve) |
| Glutamate | Positive (+ve) |
| Glycerol | Negative (-ve) |
| Glycogen | Negative (-ve) |
| Lactate | Positive (+ve) |
| Malate | Positive (+ve) |
| Maltose | Negative (-ve) |
| Mannitol | Negative (-ve) |
| Mannose | Negative (-ve) |
| Melibiose | Negative (-ve) |
| Propionate | Positive (+ve) |
| Raffinose | Negative (-ve) |
| Rhamnose | Negative (-ve) |
| Sorbitol | Negative (-ve) |
| Starch | Negative (-ve) |
| Succinate | Positive (+ve) |
| Sucrose | Negative (-ve) |
| Tartrate | Negative (-ve) |
| Xylose | Negative (-ve) |
Enzymatic Reactions |
|
| Esculin Hydrolysis | Negative (-ve) |
| Lysine Decarboxylase | Negative (-ve) |
| Ornithine Decarboxylase | Positive (+ve) |
References
- Brenner, D. J., Krieg, N. R., Garrity, G. M., & Staley, J. T. (2005). Bergey’s manual of systematic bacteriology: Volume two. New York: Springer.
- https://catalog.hardydiagnostics.com/cp_prod/Content/hugo/Alcaligenes.htm
- https://www.sciencedirect.com/topics/medicine-and-dentistry/alcaligenes-faecalis
- https://pdfs.semanticscholar.org/b442/3b2d604a0500e043ad92f9d7c90550bf38dd.pdf
- http://www.tgw1916.net/Alcaligenaceae/alcaligenes_faecalis.html
- https://www.revolvy.com/page/Alcaligenes-faecalis
I’m currently on the crossroads of deciding to continue with my Nursing Degree or go into Biology. What would you recommend.