Antibacterial activity of aquatic gliding bacteria

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Table 2 Phenotypic characteristics of the aquatic gliding bacterial isolates

Characteristic	RPD001	RPD008	RPD018	RPD027	RPD049
Cell morphology	Filament	Rod	Rod	Rod	Rod
Size in length (µm)	5–10	0.2–0.5	0.2–0.4	0.2–0.4	0.2–0.6
Colony color	Yellow	Yellow	Yellow	Pale-bright	Pale-bright
Gliding motility	+	+	+	+	+
Gram’s stain	Negative	Negative	Negative	Negative	Negative
Oxidase	–	–	–	–	–
Catalase	–	–	–	+	–
Enzyme activities
Alkaline phosphatase	+	–	+	+	–
Esterase (C4)	+	+	+	+	+
Esterase lipase (C8)	+	+	+	+	+
Lipase (C14)	–	–	–	+	–
Acid phophatase	+	–	–	+	–
Naphthol-AS-BI-phosphohydrolase	+	+	+	+	+
β-Galactosidase	–	–	+	–	–
Hydrolysis of
Arginine	+	–	–	+	–
Sodium citrate	+	–	–	+	–
Urea	–	+	+	+	+
Tryptophan	–	–	–	+	–
Sodium pyruvate	+	–	–	+	–
Kohn’s gelatin	+	–	–	–	–
Acid production of
d-Arabinose	–	+	+	–	–
l-Arabinose	+	–	–	–	–
Ribose	+	+	+	–	+
d-Xylose	+	–	–	+	–
Galactose	+	–	–	–	–
Glucose	–	+	+	–	+
Fructose	+	+	+	–	+
Mannose	+	–	+	–	–
Mannitol	+	–	–	–	–
Esculin	–	–	–	+	+
Cellobiose	+	+	+	–	+
Maltose	+	+	+	–	+
Sucrose	+	+	+	–	+
Starch	+	+	+	–	+
Raffinose	+	+	+	–	–
d-Fucose	+	–	–	+	+
l-Fucose	–	+	+	–	–
5-Keto-gluconate	–	–	+	–	+
Glycerol	+	+	+	–	+