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Effects of validamycin on some enzymatic activities in soil 总被引:1,自引:0,他引:1
There have been few investigations of the possible effects of validamycin on the enzymatic activities in soil. The objective
of this present work was to study the short-term influence of enzymatic activity in validamycin treated soils. The results
showed that high dose of validamycin introduced into soil had an significant effect on soil enzymatic activities, the degree
of inhibition or promotion of enzymatic activities was not only related to the concentration of validamycin, but also to the
remain time. Compared with the control (non treatment with validamycin), 240 ml.mg−1 validamycin treatment caused a significant decrease (14%) of soil catalase activity; validamycin also inhibited urease activity
to 67.3%, but subsequently, validamycin stimulated its activity higher than that of the control. Only the highest dose stimulated
acid phophatase activities by 29.7%, and other concentration treatments had no effects on these enzymatic activities. The
above results indicated that validamycin had effects on soil enzyme, but the effective time was short. It is also interesting
to speculate that validamycin can be easily used by the soil microorganism as carbon source and energy. 相似文献
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