|
| Table 3. Effect of plant growth regulators and of T. harzianum on the secretion of endo-PGase from A. alternata. |
|
Additions to the submerged culture |
PGase activity from A. alternata (mM reducing sugars min-1) |
% PGase activity |
|
None1 |
21.3 + 1.9a |
100 |
|
40 ppm GA3 |
17.1 + 1.2b |
80 |
|
40 ppm IAA |
16.0 + 1.3b |
75 |
|
40 ppm BAP |
16.4 + 1.5b |
77 |
|
T. harzianum (heat inactive) |
21.5 + 1.7a |
100 |
|
T. harzianum2 |
11.5 + 1.2c |
54 |
| 140
ppm of either GA3, IAA or BAP did not alter endo-PGase
activity, when added to the assay medium of control. 2T. harzianum did not show PGase activity at day 4. Means within the column followed by the same letter are not significantly different at p<0.05. |
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