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当前位置: 首页 > 文章 > 苯并噻二唑(BTH)诱导黄瓜幼苗对霜霉病抗性的研究 园艺学报 2006,33 (2) 278-282
Position: Home > Articles > Studies on Induction Resistance to Psedoperonospora cubensis by BTH in Cucumber Seedlings Acta Horticulturae Sinica 2006,33 (2) 278-282

苯并噻二唑(BTH)诱导黄瓜幼苗对霜霉病抗性的研究

作  者：
李玉红;程智慧;陈鹏;陈晓光
单  位：
西北农林科技大学园艺学院;西北农林科技大学生命科学学院
关键词：
黄瓜;霜霉病;BTH;诱导抗性;几丁质酶;β-1,3-葡聚糖酶
摘  要：
用0.5mmol/LBTH(苯并噻二唑)溶液在接种黄瓜霜霉病菌前4、8、12、24、48、96、168h(7d)和接种后2、4d处理二叶期的黄瓜幼苗,结果表明BTH对霜霉病菌无直接的抑制作用,但能诱导黄瓜幼苗对霜霉病产生局部和系统的抗性,系统抗性的表达在处理后48h产生并持续7d以上。几丁质酶和β13葡聚糖酶活性测定结果表明,BTH处理可系统性地增强这两种酶的活性,且与黄瓜对霜霉病的诱导抗性密切相关。
译  名：
Studies on Induction Resistance to Psedoperonospora cubensis by BTH in Cucumber Seedlings
作  者：
Li Yuhong1,Cheng Zhihui1*,Chen Peng2,and Chen Xiaoguang1(1College of Horticulture, Northwest A & F University, Yangling 712100, China;2College of Life Sciences, Northwest A & F University, Yangling 712100,China)
关键词：
Cucumber downy mildew; BTH; Induced resistance;Chitinase;β-13-glucanase
摘  要：
0.5 mmol/L BTH was used in seedling with two true leaves 4, 8 and 12 h,or 1,2,4 and 7 days before or 4 and 2 days after inoculation with P.cubensis. Results obtained showed that BTH had not a curative effect but could induce local and systemic resistance in cucumber against the downy mildew. Expression of systemic resistance in leaves was detectable 48 h after treatment and continued for at least 7 days. Chitinase and β-13-glucanase activities analysis showed that induced resistance in cucumber leaves was accompanied by a systemic increasing in both enzymes activities.Two enzymes were related to resistance to downy mildew in cucumber.

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