Gram stain and Colony descriptions | Haemolysis | Motility | Catalase | Oxidase | Nitrate reductase | Indole | Methyl-Red | Voges-Proskauer | Citrate Utilization | H2S Production | Gelatinase | Urea hydrolysis | O/129 disk | ONPG | Glucose | Trehalose | Lactose | Maltose | Mannitol | Esculin | Organisms and No of strains |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
GN rods, short, plump, in coccoid pairs or chains of variable length (Translucent to opaque, convex, entire colonies 1.5-2 mm) | - | - | + | - | - | - | - | - | V | - | - | - | - | - | V | - | V | - | - | - | Acinetobacter spp. n: 24 |
GN slightly curved rods, (Large, smooth, yellowish-white mucoid 2-4 mm colonies) | V | V | + | + | V | - | - | - | + | - | V | V | - | V | - | - | - | V | V | - | Pseudomonas spp. n: 72 |
GN rods (Flat, greenish, 1-2 mm colonies) | V | - | + | + | V | - | - | - | + | - | + | V | - | - | - | V | - | V | V | - | P. fluorescens n: 72 |
GN coccobacilli (Slightly, convex, cream colored 2 mm colonies) | - | - | - | + | V | - | - | - | - | - | - | V | - | - | - | - | - | - | - | - | Psychrobacter spp. n: 48 |
GN rods (Opaque, circular, convex, white to pink entire colonies 2-3 mm) | - | + | - | - | V | - | V | + | + | - | + | - | - | + | + | + | - | + | + | V | Serratia spp. n: 24 |
GN curved or comma shaped rod (smooth, moist, opaque-white\yellow green, round 2-3 mm colonies) | V | + | + | + | + | + | V | - | V | - | V | V | + | V | + | + | V | V | V | V | Vibrio spp. n; 72 |
GN regular rods (Shiny, orange-yellow, circular, smooth, concave, 2 mm colonies) | - | - | + | - | + | ND | ND | ND | + | ND | + | + | ND | ND | + | + | + | ND | ND | - | Pectobacterium carotovorum n; 48 |
GP irregular rods with jointed rods 'V-shape' (Yellow-Greenish-metallic center,1-2 mm colonies) | - | - | - | + | V | - | - | - | - | - | V | V | - | - | - | V | V | V | V | - | Arthrobacter spp. n; 48 |
GP straight long-narrow rods in chain, contain oval endospore (Gray-white, dry appearance 3-4 mm) | V | + | + | V | V | V | V | V | V | - | V | V | V | V | + | + | V | V | V | V | Bacillus spp. n; 48 |
GP slightly slender singly rods (Whitish, round, convex, 1-2 mm colonies) | - | - | - | - | - | - | - | + | + | - | - | - | - | - | V | + | + | V | + | + | Carnobacterium spp. n; 48 |
GP cocci singly, in pairs (Circular, convex to slightly peaked, smooth, glossy, opaque 1-5 mm colonies) | - | ND | + | - | - | ND | ND | ND | ND | ND | ND | + | ND | - | + | + | V | + | V | + | Staphyloccocus spp. n: 48 |
Negative Control (Sterilized 0.9% NaCl) | - | - | - | - | - | - | - | - | - | - | Â | - | - | - | - | - | - | - | - | - | - |