Molecular characterization of marine bacterial isolates of Visakhapatnam coast—efficacy in dye decolorization and bioremediation of cadmium

Journal of Genetic Engineering and Biotechnology

Table 2 Biochemical characterization of isolated bacterial strain

S. No	Name of the Test	M1	M2	M3	M4	M5	M6	M7	M8	M9	M10
1.	Catalase activity	-	+	+	+	+	+	-	+	-	+
2.	Hemolysis	α	Α	β	γ	α	β	β	β	α	γ
3.	Oxidase	+	+	+	-	+	+	-	+	-	-
4.	Urease	+	-	-	-	-	-	-	-	-	-
5.	Methyl red	+	+	+	+	+	+	+	-	+	+
6.	Voges-Proskauer reaction	+	-	-	-	-	-	-	-	-	-
7.	Indole	-	-	-	-	-	-	-	-	-	-
8.	Starch hydrolysis	+	+	+	+	+	+	+	+	+	+
9.	Gelatin liquefaction	+	+	+	+	+	+	+	+	+	+
10.	Motility	M	NM	M	NM	M	NM	M	M	M	NM
11.	Nitrate reduction	+	_	+	+	+	+	-	+	-	+
12.	H₂s production	+	+	+	+	+	+	+ -	-	+	+
13.	Citrate utilization	+	-	-	+	-	-	+	-	+	+
14.	Carbohydrate utilization test
	Sucrose	A	A	A	A/G	A	A	A	A	A	A
	Maltose	A	A	A	A	A/G	A	A	-	A	A
	Glucose	A	A	-	A	A	A	A	A/G	A	A/G
	Lactose	A	-	A	A	A/G	-	A	-	A	A
	Mannitol	A	-	-	A	-	-	-	-	-	A
	Mannose	-	-	A	A	A	A	A		A	A

+ positive, – negative, M motile, NM non-motile, A acid producer, G gas producer, A/G acid and gas producer