根据植物感病过程中特异性毒素对寄主的作用原理,利用油茶炭疽病菌产生的外毒素,对不同抗性油茶物种的叶进行处理,观察毒素对细胞质膜透性的影响,测定与抗性有关的重要生理生化指标效应。高抗攸县油茶、中抗小叶油茶和高感普通油茶叶组织的电导率及各项生理生化指标的变化趋势是与林间鉴定的三种不同油茶物种抗炭疽病能力一致;并证实了油茶炭疽病菌毒素是普通油茶的专一性毒素。 According to the principle of the specific toxin in the process of plant infection, we used the exotoxin produced by the anthracnose of Camellia oleifera to treat the leaf of different resistance Camellia species, and observed the effect of the toxin on the cell plasma membrane permeability, The important physiological and biochemical indicators of effect. The trend of electric conductivity and various physiological and biochemical indexes in Gao Youxian Camellia oleifera, Zhongyi Xiaoye Youpai and Gaoyancao Camellia oleifera were consistent with the anthracnose resistance ability of three different Camellia species identified in the forest. The results showed that Camellia oleifera Anthrax toxin is a common toxin of common tea.