Table 3.
Morphological, physiological, and biochemical characteristics of strain VSM-30
| S. no | Morphological characters | Response |
|---|---|---|
| 1 | Cell shape | Mycelial |
| 2 | Sporophore morphology | Flexuous |
| 3 | Color of aerial mycelium (ISP-2) | Greyish white |
| 4 | Color of substrate mycelium (ISP-2) | Pale yellow |
| Physiological characters | ||
| 5 | Gram reaction | + |
| 6 | Acid-fast reaction | − |
| 7 | Production of melanin pigment | + |
| 8 | Range of temperature for growth | 25–40 °C |
| 9 | Optimum temperature for growth | 30 °C |
| 10 | Range of pH for growth | 6–9 |
| 11 | Optimum pH for growth | 7.5 |
| 12 | NaCl tolerance | 9% |
| Biochemical characters | ||
| 13 | Catalase production | + |
| 14 | Nitrate reduction | − |
| 15 | Hydrogen sulphide production | + |
| 16 | Starch hydrolysis | + |
| 17 | Gelatin liquefaction | − |
| 18 | Methyl red test | − |
| 19 | Vogues–Proskauer test | − |
| 20 | Indole production | − |
| 21 | Citrate utilization | + |
| 22 | Casein hydrolysis | + |
| 23 | Coagulase | + |
+, positive; −, negative