摘要
在抗病品种东农 9674、东农 1 5 72和感病品种黑农 3 9、东农 95 -1 65上接种大豆灰斑病菌的1号 ,2号 ,4号 ,6号 ,7号等 5个生理小种 ,测定从接种到显症前与抗性有关的苯丙氨酸解氨酶活性的变化。研究结果表明 ,抗病的大豆品种接种不同生理小种的灰斑病菌后 ,PAL的活性分别从第 6～ 7天起呈上升趋势且明显高于对照 ;相反感病品种从 8～9天起PAL活性明显低于对照。因此说明PAL的活性与大豆抗灰斑病性呈正相关关系。
Soybeans varieties that included not only resistant DN-9674 and DN-1572 but also susceptible HN-39 and DN95-165,were inoculated with No.1,No.2,No.4,No.6 and No.7 races of Cerospora sojina Hara as 3th or 4th leaves,leaves were sampled during 1～10 days after inoculating and the PAL activities in leaves of both the inoculated and the healthy plants were measured.The results showed that in the late period of disease development, the PAL activities in leaves of resistant varieties increased and were significantly higher than those in the healthy leaves of control of corresponding soybean varieties,but the PAL activities in leaves of susceptible varieties were obviously lower than those in the healthy leaves of control.Thus the relationship between the PAL activity and the resistance of soybean variety to frog-eye leaf spot was positive correlation
出处
《大豆科学》
CAS
CSCD
北大核心
2002年第3期195-198,共4页
Soybean Science
