Characteristics |
Lactobacillus |
Pseudomonas |
Saccharomyces |
Aspergillus |
Streptomyces |
Colony morphology |
White, mucoid |
Fluorescent, mucoid |
Creamy white, mucoid, smooth |
Black fuzzy mat |
White, dry, powdery |
Cell shape |
Rods |
Rods |
Ovoid budding cells |
Conidia arising from conidiophore |
Filamentous rods |
Gram stain |
Gram positive |
Gram negative |
|
|
Gram Positive |
Motility |
Non-motile |
Motile |
|
|
|
Catalase |
- |
+ |
|
|
|
Oxidase |
- |
+ |
|
|
|
Indole production |
- |
- |
|
|
|
Methyl Red |
- |
- |
|
|
|
Voges-Proskauer |
- |
- |
|
|
|
Citrate utilization |
- |
+ |
|
|
|
Glucose fermentation |
+ |
- |
+ |
- |
|
Lactose fermentation |
+ |
- |
+ |
- |
|
Sucrose fermentation |
+ |
- |
+ |
- |
|
Triple Sugar Iron |
Acid butt, acid slant |
Alkaline butt, alkaline slant |
|
|
|
Urease |
- |
+ |
|
|
|
Casein hydrolysis |
|
|
|
|
+ |
Tyrosine hydrolysis |
|
|
|
|
+ |
Xanthine hydrolysis |
|
|
|
|
+ |
+ = positive, - = negative |