These varieties of differentresistances were infected by Plasmopara viticola, the content of PAL, chlorogenic acid and lignin in the resistant variety, Cabernet Sauvignonwas longer than those in susceptible varieties.

• 不同抗性的葡萄品种感染霜霉病菌后，葡萄叶片中的苯丙氨酸解氨酶（PAL）、绿原酸、木质素的含量，抗病品种比感病品种高。