Table 3.
Morphological, physiological, and biochemical characters of the four selected isolates.
| Strains | CG3 | A79 | A111 | A93 |
|---|---|---|---|---|
| Morphological Characters | ||||
| ISP 2-G | ++ | - | ++ | ++ |
| ISP 2-R | Golden yellow | - | Orange | Narcissus yellow |
| ISP 2-A | White | - | - | - |
| ISP 3-G | ++ | + | ++ | ++ |
| ISP 3-R | Zinc yellow | White | Orange | Colorless |
| ISP 3-A | White | Cream | - | - |
| ISP 4-G | ++ | + | ++ | - |
| ISP 4-R | Zinc yellow | Colorless | Orange | - |
| ISP 4-A | White | - | - | - |
| ISP 5-G | ++ | - | ++ | - |
| ISP 5-R | Cream | - | Colorless | - |
| ISP 5-A | White | - | - | - |
| ISP 6-G | + | - | ++ | ++ |
| ISP 6-R | Golden yellow | - | Honey yellow | Colorless |
| ISP 6-A | White | - | - | - |
| ISP 7-G | ++ | + | ++ | ++ |
| ISP 7-R | Golden yellow | Colorless | Pearlescent copper | Colorless |
| ISP 7-A | White | Colorless | - | - |
| Physiological Characters | ||||
| Temperature range for growth (°C) | 25–50 °C/Opt37 °C | 25–35 °C/Opt 30 °C | 25–35 °C/Opt30 °C | 25–35 °C/Opt 30 °C |
| % NaCl tolerance | (0–18)%/Opt(3–7) % | (0–2.5)%/Opt 0% | (0–2.5)%/Opt 0% | (0–2.5)%/Opt 0% |
| pH range for growth | 6–12/Opt 7 | 6–9/Opt 7–8 | 6–9/Opt 7 | 6–9/Opt 7 |
| Biochemical characters | ||||
| Glucose (positive control) | + | + | + | + |
| Arabinose | - | + | + | - |
| Sucrose | + | ++ | + | - |
| Xylose | - | + | + | + |
| Inositol | + | - | ++ | + |
| Mannose | - | ++ | ++ | + |
| Fructose | + | ++ | + | ++ |
| Rhamnose | - | - | + | ++ |
| Raffinose | - | - | + | + |
| Cellulose | - | - | + | - |
| Urease | + | + | - | - |
| Gelatin | + | + | + | - |
Morphological characters: G, growth; R, reverse color; A, aerial mycelium; ++, good growth; +, sparse growth; -, no growth. Biochemical characters: -, less than negative control (water); +, similar to positive control (glucose); ++, better than positive control. Opt, optimum.