茉莉酸甲酯诱导甘蔗抗虫性中多酚氧化酶（PPO）活性分析

摘要

诱导抗虫性研究发现，应用茉莉酸甲酯（MeJA）诱导甘蔗后，其叶片及生长点组织中多酚氧化酶（PPO）活性明显提高，酶活性分别达22～50units／mg和182～218units／mg，这与模拟螟虫取食作用的机械损伤诱导作用结果相类似。%Research on induced resistance revealed that the activity of polyphenol oxidase increased considerably in the leaves and growing tips of sugarcane after methyl jasmonate induction. The activity reaches 22-50 units/mg and 182-218 units/mg respectively, similar to the induction of mechanical damage that imitates borer bites.