| Basic Characteristics | Properties (Actinomyces israelii) |
| CAMP | -ve |
| Capsule | -ve |
| Catalase | -ve |
| Flagella | Negative (-ve) |
| Gelatin Hydrolysis | -ve |
| Gram Staining | Gram +ve |
| H2S | Positive (+ve) |
| Hemolysis | -ve |
| Indole | -ve |
| Motility | -ve |
| MR (Methyl Red) | Variable |
| Nitrate Reduction | Variable |
| OF (Oxidative-Fermentative) | Fermentative, Anaerobic |
| Pigment | -ve |
| Shape | Branching filaments, branched rods and diphtheroidal forms |
| Urease | -ve |
| VP (Voges Proskauer) | -ve |
| Fermentation of | |
| Adonitol | Negative (-ve) |
| Arabinose | Positive (+ve) |
| Cellobiose | +ve |
| DNase | -ve |
| Dulcitol | -ve |
| Erythritol | Negative (-ve) |
| Fructose | +ve |
| Galactose | +ve |
| Glucose | +ve |
| Glycogen | Variable |
| Hippurate | -ve |
| Inositol | Variable |
| Lactose | +ve |
| Maltose | +ve |
| Mannitol | +ve |
| Mannose | +ve |
| Melibiose | Variable |
| MyoInositol | Variable |
| Raffinose | +ve |
| Rhamnose | -ve |
| Ribose | Variable |
| Salicin | Variable |
| Sorbitol | Variable |
| Starch | -ve |
| Sucrose | +ve |
| Trehalose | Variable |
| Xylose | +ve |
| Enzymatic Reactions | |
| Acetoin Production | -ve |
| Acid Phosphatase | Variable |
| Alkaline Phosphatase | Negative (-ve) |
| Arginine Dihydrolase | Positive (+ve) |
| Casein Hydrolysis | -ve |
| Esculin Hydrolysis | +ve |
| α -Fucosidase | -ve |
| α-Glucosidase | +ve |
| Lipase | -ve |
| Lysine | Positive (+ve) |
| β-NAG | -ve |
| ONPG (β-galactosidase) | +ve |
Interesting Science Videos
References
- Michael Goodfellow et.al, editors, volume 5; William B. Whitman, director of the editorial office; Aidan C. Parte, managing editor. (2012). Bergey’s manual of systematic bacteriology. Volume 5, The actinobacteria. New York :Springer
- https://www.britannica.com/science/Actinomyces-israeli
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC276822/
- Sarkonen, N., Könönen, E., Summanen, P., Könönen, M., & Jousimies-Somer, H. (2001). Phenotypic identification of Actinomyces and related species isolated from human sources. Journal of clinical microbiology, 39(11), 3955-61.
- Slack, J. M., Landfried, S., & Gerencser, M. A. (1969). Morphological, biochemical, and serological studies on 64 strains of Actinomyces israelii. Journal of bacteriology, 97(2), 873-84.
