Antimicrobial Potential of Extract from a Pseudomonas aeruginosa Isolate

Table 3

Morphological and biochemical properties of isolate DO5.

Characteristics	Results
Colour of colonies	Gray
Gram reaction	Negative
Motility	+
Cell shape	Rod
Oxidase test	+
Catalase test	+
Starch hydrolysis	+
Biochemical characteristics
H2S production	−
Nitrate reduction	+
Urease test	+
Citrate test	+
Indole test	−
Methyl red test	+
Voges-Proskauer test	−
Reaction with 3% KOH	+
Acid Production
Glucose	+
Maltose	+
Galactose	+
Sucrose	+
Mannitol	+
Glycerol	+
Lactose	+
Fructose	+
Xylose	+
Gelatin	+
Starch	+
Acid production
Pectin	−
L-sorbose	−
L-arabinose	−
Raffinose	−
DL-alanine	+
D (+) mannose	−
Chitin	+
Dextrin	+
Insulin	−
Inositol	+
NaCl (1–3%)	+
NaCl (5–7%)	−
pH (4–6)	−
pH (7–9)	+
Growth on selective media
MacConkey agar	+ (Brown)
Mannitol agar	−
Sabouraud dextrose agar	+ (yellow)
Bismuth sulphite agar	+ (green)
Cetrimide agar	+ (green)

(+) = Positive activity, (−) = Negative activity.