| 壳寡糖诱导黄瓜抗黄瓜黑星病的初步研究 |
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| 引用本文： | 解婷婷,吕淑霞,马镝,张良,王媛媛.壳寡糖诱导黄瓜抗黄瓜黑星病的初步研究[J].天然产物研究与开发,2011,23(3):508-511,555. |
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| 作者姓名： | 解婷婷 吕淑霞 马镝 张良 王媛媛 |
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| 作者单位： | 沈阳农业大学生物科学技术学院,沈阳,110866 |
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| 摘 要： | 本文研究了壳寡糖诱导黄瓜对黑星病的抗性作用。利用6 mg/mL壳寡糖溶液对苗期黄瓜诱导,进行病情调查统计及测定处理前后黄瓜叶片的主要防御酶系———苯丙氨酸解氨酶,过氧化物酶,多酚氧化酶,超氧化物歧化酶,过氧化氢酶的活性变化。结果显示,壳寡糖对黄瓜黑星病在10 d和17 d的诱抗效果分别为60.25%和47.59%,且作为诱导因子可显著提高黄瓜叶片内苯丙氨酸解氨酶(PAL)活性,过氧化物酶(POD)、多酚氧化酶(PPO)、超氧化物歧化酶(SOD)活性也有所提高,但叶片内过氧化氢酶(CAT)活性无较明显变化。研究结果表明壳寡糖对黄瓜抗黑星病产生诱导作用,为研究壳寡糖作为新型生物农药提供了依据。
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| 关 键 词： | 壳寡糖 黄瓜 黄瓜黑星病 诱导抗性 防御酶系 |
Primary Study on the Resistance to Cladosporium cueumerinum of Cucumber Induced by Chito-oligosaccharide |
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| XIE Ting-ting,LV Shu-xia,MA Di,ZHANG Liang,WANG Yuan-yuan.Primary Study on the Resistance to Cladosporium cueumerinum of Cucumber Induced by Chito-oligosaccharide[J].Natural Product Research and Development,2011,23(3):508-511,555. |
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| Authors: | XIE Ting-ting LV Shu-xia MA Di ZHANG Liang WANG Yuan-yuan |
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| Institution: | XIE Ting-ting,LV Shu-xia,MA Di,ZHANG Liang,WANG Yuan-yuan College of Biological Science and Technology,Shenyang Agricultural University,Shenyang 110866,China |
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| Abstract: | This article focused on the cucumber resistance to Cladosporium cueumerinum which was induced by chito-oligosaccharide.The state of illness of the cucumber seedlings induced by 6 mg/mL chito-oligosaccharide was investigated and the activities of major defense enzymes of phenylalanin ammo-nialyase(PAL),peroxidase(POD),polyphenol oxidase(PPO),superoxide dismutase(SOD),and catalase(CAT) were determined.The results showed that the induced resistance of cucumber scab by chito-oligosaccharide was 60.25% and 47.59... |
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| Keywords: | chito-oligosaccharide cucumber Cladosporium cueumerinum induced resistance defense enzymatic system |
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