接种疫霉根腐病菌对大豆抗坏血酸氧化酶的影响

CHANGES OF AAO ACTIVITY IN SOYBEAN LEAVES OF DIFFERENT RESISTANT VARIETIES INOCULATED BY PHYTOPHTHORA SOJAE

对不同抗、感病品种接种疫霉根腐菌1号生理小种前及24 h、48 h、72 h、96 h后测定叶片中抗坏血酸氧化酶单位的变化特点进行分析,探讨了该酶在抗大豆疫霉根腐病的作用。结果表明,抗病品种酶单位呈现上升下降再上升的变化趋势,感病品种酶单位呈现上升再下降的变化趋势。

To investigate the effect of Phytophthora sojae on the ascorbic acid dase(AAO),varieties with different resistance were inoculated by Phytophthora sojae racer,and the changes of AAO activity was measured.Results showed that the AAO activities behared a course of raise decline and then raise again in the resistant varieties,while a course of raise and then decline was observed in susceptible one.