摘要
苯丙氨酸解氨酶活性变化在玉米抗、感品种和不同生育期与叶鞘位之间存在差异。在玉米(川单10号)的不同生育期和叶鞘位中,随生育期的发展和叶鞘位的下降,苯丙氨酸解氨酶活性降低。在受纹枯病菌侵染后,抗病品种(R15)的苯丙氨酸解氨酶活性增加的速度和程度明显高于感病品种(K09)。这一结果表明,玉米对纹枯病的阶段抗性变化以及品种抗性与苯丙氨酸解氨酶活性变化相关。
Physiological and pathological changes of phenylalanine ammonialyase (PAL) activity in leaf sheath of corn were tested. The resultes show that the increase rate and degree of PAL activity in resistant variety (R15) are more rapid and higher than those in susceptible variety (K09). There are great differences in activites of PAL at different growth stages and position of leaf sheath. The differences in activity of PAL are related to the disease resistance.
出处
《四川农业大学学报》
CSCD
2003年第2期116-118,共3页
Journal of Sichuan Agricultural University
基金
四川省科技厅"九五"重点项目。
