Abstract
Each of the antifungal compounds extracted from each of the antagonistic microorganisms was found to has an inhibitory effect on Rhizoctonia solani and Fusarium oxysporum. Four antifungal compounds were found to be the most inhibitory than the other compounds. The first one from Eupenicillium senticosum, the second from Streptomyces aurantiacus, the third from Curtobacterium pusillum and the last one from Saccharomyces unispora. The first three compounds were active against R. solani, while the last one was active against F. oxysporum. All the four compounds were found to reduce or inhibit the growth of R. solani and F. oxysporum. They also reduce the carbohydrate concentrations, as well as reducing the nitrogen content (total nitrogen, soluble nitrogen and protein nitrogen). Regarding their effect on the enzyme activity, they increase the activity of fumarase, malic dehydrogenase and succinic dehydrogenase, while they reduce the activity of catalase enzyme of both R. solani and F. oxysporum as compared to control.
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