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甜瓜枯萎病的粗提毒素对哈密瓜幼茎愈伤组织的形成有一定的抑制作用，对抗性不同的品系，这种作用呈现出一定的差异，抗病品系所受的抑制作用小于感病的品系。另外，基培养基中毒素的浓度不同，其对愈伤组织的抑制作用也不相同，浓度越高，抑制作用越大，这说明哈密瓜对枯萎病的抗性在一定的程度上可以离体表达。
The crude toxin of Fusarium wilt had certain inhibitory effect on the formation of callus of young cantaloupe. The effects of different antagonistic strains showed some differences. The inhibition effect of resistant strain was less than the susceptible strain . In addition, the concentration of toxin in basal medium was different, and its inhibitory effect on callus was also different. The higher the concentration, the greater the inhibitory effect, indicating that the resistance of Fusarium oxmophilum to Fusarium wilt could be expressed in vitro to a certain extent .