| Basic Characteristics | Properties (Corynebacterium diphtheriae) |
| CAMP | Negative (-ve) |
| Capsule | Non-Capsulated |
| Catalase | Positive (+ve) |
| Cetrimide Test | Negative (-ve) |
| Citrate | Negative (-ve) |
| Coagulase | Negative (-ve) |
| Flagella | Non-Flagellated |
| Gas | Variable |
| Gelatin Hydrolysis | Negative (-ve) |
| Gram Staining | Positive (+ve) |
| H2S | Positive (+ve) |
| Hemolysis | Weak Beta hemolysis |
| Indole | Negative (-ve) |
| Motility | Non-Motile |
| MR (Methyl Red) | Positive (+ve) |
| Nitrate Reduction | Positive (+ve) |
| OF (Oxidative-Fermentative) | Fermentative |
| Oxidase | Negative (-ve) |
| Pigment | Positive (+ve) |
| Shape | Rod/Club Shaped |
| Spore | Non-Sporing |
| Urease | Negative (-ve) |
| Arabinose | Positive (+ve) |
| Dextrose | Positive (+ve) |
| Fructose | Positive (+ve) |
| Galactose | Positive (+ve) |
| Glucose | Positive (+ve) |
| Glycogen | Negative (-ve) |
| Hippurate | Negative (-ve) |
| Lactose | Negative (-ve) |
| Maltose | Positive (+ve) |
| Mannitol | Negative (-ve) |
| Mannose | Positive (+ve) |
| Raffinose | Variable |
| Rhamnose | Positive (+ve) |
| Salicin | Positive (+ve) |
| Starch | Negative (-ve) |
| Sucrose | Negative (-ve) |
| Trehalose | Negative (-ve) |
| Xylose | Negative (-ve) |
| Alkaline Phosphatase | Negative (-ve) |
| Casein Hydrolysis | Negative (-ve) |
| Esculin Hydrolysis | Negative (-ve) |
| Ornithine Decarboxylase | Negative (-ve) |
| Tellurite | Positive (+ve) |
| Tyrosine Hydrolysis | Negative (-ve) |