Table 3.
Chitinolytic activity of culture filtrates ofTrichodermaisolates grown on media (broth) supplemented with colloidal chitin derived fromRhizoctoniacell wall (RCW) and Commercial chitin (Cc)
| Trichoderma isolates showing similar Chitinolytic activity (NAGA conc.) | |||
|---|---|---|---|
| Isolate Group | Low | Medium | High |
| A | 1, 6, 10, 14 | 211 | - |
| B | 28,43 | - | - |
| C | - | Gv | 38, 202 |
| D | - | 152, 261 173 | - |
| E | - | 97 | Cb4 |
| F | 91 | 111 | - |
| Isolate Group | Low / Medium preference for Cc derived colloidal chitin but Medium / High preference for RCW derived colloidal chitin | ||
| A | Tv(t), 120, 217, 207, 25, 73 | ||
| B | 24 | ||
| C | 12, 62, 48, 107, 249, 297,55, 98, 231a | ||
| D | 145b1 | ||
| E | 46, 53, 75, 2, 102 | ||
| F | 40(1)b, 106, 233b, 238, 243, 332, 125b, 204 | ||
| Isolate Group | Low / Medium preference for RCW derived colloidal chitin but Medium / High preference for Cc derived colloidal chitin | ||
| A | 4, 68, 20, 32, Th1 | ||
| B | 27, 29 | ||
| C | - | ||
| D | 85, 93, 99, 226, 326 | ||
| E | - | ||
| F | 8, 114 | ||
Chitinase activity (NAGA conc.) Low=(30–60 mg/ml); Medium=(61–80 mg/ml); High=(81 mg/ml and above); A= T. harzianum / viride; B= T. citirinoviride; C= T aureoviride; D= T. virens; E= Isolates belonging to Sec. Longibrachiatum; F= Isolates belonging to Sec. Pachybasium.