抗病和感病黄瓜品种感染白粉病菌后几种酶活性的变化 THE CHANGES OF SOME ENZYMES ACTIVITIES FROM CUCUMBER LEAVES AFTER INOCULATION WITH CUCUMBER POWDER MILDEW期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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抗病和感病黄瓜品种感染白粉病菌后几种酶活性的变化

引用本文：	董毅敏,徐建华.抗病和感病黄瓜品种感染白粉病菌后几种酶活性的变化[J].Acta Botanica Sinica,1990,32(2):160-164.

作者姓名：	董毅敏徐建华

作者单位：	中国科学院植物研究所，中国科学院植物研究所，中国科学院植物研究所北京 100044，北京 100044，北京 100044

摘要：
关键词：	黄瓜黄瓜白粉病酶活性
THE CHANGES OF SOME ENZYMES ACTIVITIES FROM CUCUMBER LEAVES AFTER INOCULATION WITH CUCUMBER POWDER MILDEW

Authors:	Dang Yi-min Xu Jian-hua Guo Ji-fang

Abstract:	Polyphenoloxidase peroxidase and phenylalanine ammonia lyase from cucumber cucumis sativus L.leaves were studied during the period of 22 days after inoculation with cucumber powder mildew. These results suggest that early rapid increase of polyphenoloxidase,peroxidase and phe- nylalanine ammonia lyase activities is of great significance in the disease resistance.Thus it may provide as one of the physiological indexes for the selection of cucumber resistant culti- var.The mechnism of disease resistance may be shown by toxic role of phenol oxidates and cell wall lignification.

Keywords:	Cucumber cucumber powder mildew polyphenoloxidase peroxidase phenylalanine ammonia lyase
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