通过光学显微镜和扫描电镜,研究了哈茨木霉对甜椒疫霉的重寄生性。当哈茨木霉接仲于甜椒疫霉培养平板上24～48h后,其在接触部位通过菌丝缠绕和形成吸器或一种类似附着胞的结构寄生疫霉菌丝。借助扫描电镜,进一步证实寄生菌形成吸器用于穿入病原菌丝体。在对峙培养中,还看到甜椒疫霉的菌丝原生质发生集聚,最后空化。 The parasitism of T. harzianum against Phytophthora capsici was studied by light microscopy and scanning electron microscopy. When Trichoderma harzianum was subcutaneously suspended in Phytophthora capsici culture plates for 24-48 h, it was entangled at the contact site by hyphae and formed aspirate or a parasitic mosaic-like structural parasiticidomycosis. With scanning electron microscopy, parasites were further established as aspirators for penetrating pathogenic mycelia. In confrontation training, also saw Phytophthora capsici protoplasm gather, and finally cavitation.