Novel marine actinobacteria from emerald Andaman & Nicobar Islands: a prospective source for industrial and pharmaceutical byproducts

Table 2 Phenotypic characteristics of selected actinobacteria from A & N Islands

Properties	Streptomycessp. NIOT-VKKMA246	Streptomycessp. NIOT-VKKMA326	Saccharopolysporasp. NIOT-VKKMA1713,4522	Streptoverticilliumsp. NIOT-VKKMA16,234
Morphological characteristics
Spore morphology	Chain	Spiral	Hook	Chain
Colour of aerial mycelium	Green	Dark grey	Blue	Greenish grey
Colour of substrate mycelium	Grey	Brown	Brown	Grey
Soluble pigment	Greenish brown	Brown	-	-
Spore mass	Green	Dark grey	Blue	Green
Biochemical characteristics
Gram staining	+	+	+	+
Indole production	-	-	-	-
Methyl Red	+	-	-	+
Voges Proskauer	-	-	-	-
Citrate utilization	+	+	+	+
H₂S production	-	+	+	-
Nitrate reduction	+	+	+	+
Urease	+	+	+	+
Catalase	-	+	+	-
Oxidase	+	-	-	+
Melanin production	-	+	+	-
Starch hydrolysis	+	+	+	-
Haemolysis	+	+	+	+
Triple sugar iron	alk/alk	alk/alk	alk/alk	alk/alk
Survival at 50°C	Moderate	Good	Good	Moderate
Carbon source utilization
Starch	+	+	+	-
Dextrose	-	+	+	-
Fructose	+	+	+	+
Maltose	+	+	+	+
Mannitol	+	+	+	+
pH
5	+	-	-	+
6	+	+	+	+
7	+	+	+	+
8	+	+	+	+
9	+	+	+	+
10	+	+	+	+
11	+	+	+	+
NaCl tolerence (%)
5	+	+	+	+
10	+	+	+	+
15	+	+	+	+
20	+	+	+	+
25	+	+	+	+
30	+	-	-	+

ISSN: 1471-2180