苯并噻二唑诱发水稻对稻瘟病抗性中防卫相关酶活性的变化

被引:20
作者
葛秀春
宋凤鸣
陈永叶
郑重
机构
[1] 浙江大学农业与生物技术学院植物保护系
关键词
苯并噻二唑; 稻瘟病; 诱导抗性; 肉桂醇脱氢酶; 过氧化物酶; 脂氧合酶; β-1,3-葡聚糖酶;
D O I
10.16819/j.1001-7216.2002.02.015
中图分类号
S435.11 [稻病虫害];
学科分类号
摘要
分析了苯并噻二唑 (BTH)诱导水稻对稻瘟病抗性中苯丙氨酸解氨酶 (PAL)、肉桂醇脱氢酶 (CAD)、过氧化物酶(POD)、脂氧合酶 (L OX)、β- 1,3-葡聚糖酶和几丁酶等活性的变化。结果表明 BTH诱导处理亲和性水稻品种第 3叶后提高了处理叶及其上位第 4叶中 CAD、L OX和β- 1,3-葡聚糖酶等的活性 ;经 BTH处理的幼苗接种稻瘟菌后 ,处理叶和其上位叶中CAD、POD、L OX和 β- 1,3-葡聚糖酶等活性快速增加 ,且增长幅度均显著大于对照。几丁酶活性在受稻瘟菌侵染后升高 ,但BTH诱导处理并不能促进其增加 ;PAL活性在 BTH处理及稻瘟菌接种后均无明显变化。这些结果说明 ,BTH处理能诱导CAD、POD、L OX和β- 1,3-葡聚糖酶等活性的增加 ,而且这些酶活性的升高可能与 BTH诱发系统获得抗性的表现有关
引用
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页码:74 / 78
页数:5
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