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

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

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 + - - +