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着重研究了玉米青枯病病原禾生腐霉（PythiumgraminicolaSubram）和肿囊腐霉（P．inflatumMatth．）与其伴生病原禾谷镰刀菌（FusariumgramineariumSchw．）间代谢水平上的互作关系。结果表明：腐霉代谢产物对禾谷镰刀菌的生长有刺激作用，而禾谷镰刀菌代谢物对腐霉有明显的抑制作用；腐霉代谢产物对寄主的致萎能力比禾谷镰刀菌更强。
The interactions between Pythium graminicola Subram and P.inflatum Matth. And their associated pathogen Fusarium graminearum Schw. Were studied emphatically. The results showed that the metabolites of Pythium could stimulate the growth of Fusarium graminearum, while the metabolites of Fusarium graminearum had a significant inhibitory effect on Pythium; the wilting ability of the metabolites of Pythium to host was more than that of Fusarium graminearum Strong.