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采用人工接种的方法 ,对甜叶菊斑枯病感病生理学进行了探讨。结果表明 :斑枯病菌发生侵染时 ,在侵染点周围过氧化物酶活性急剧增强 ;蛋白质含量持续下降 ;病斑出现时脯氨酸含量大量积累 ,其后又有所下降 ;随病害的加重 ,丙二醛的含量呈直线上升 ;叶绿素的含量随病害的加重而显著减少
The method of artificial inoculation was used to study the susceptibility to the blight of stevia rebaudiana. The results showed that the activities of peroxidase increased sharply around the point of infection and the protein content continued to decrease when spotted bacteria were infected. The content of proline accumulated after the spot appeared, and then decreased. Aggravating, the content of MDA increased linearly; the content of chlorophyll decreased significantly with the increase of disease