| 几种化学物质诱导马铃薯对早疫病的抗性及其机理研究 |
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| 引用本文： | 刘洋,蒋继志,杨发茂,宋海亮. 几种化学物质诱导马铃薯对早疫病的抗性及其机理研究[J]. 华北农学报, 2006, 21(2): 113-117 |
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| 作者姓名： | 刘洋 蒋继志 杨发茂 宋海亮 |
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| 作者单位： | 河北大学,生命科学学院,河北,保定,071002;河北任丘市农业局植保站,河北,任丘,062550 |
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| 基金项目： | 河北省自然科学基金项目(300081)河北省科学技术厅项目(96Z1102) |
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| 摘 要： | 以草酸,KCl,FeSO4,K2HPO4作为激发子,就诱导马铃薯块茎对早疫病的抗性及其机理进行了初步研究。结果表明,草酸,KCl,FeSO4均可诱导马铃薯块茎产生对早疫病的抗性,其中20 mmol／L草酸的保护率达到49．38％,80 mmol／L KCl的保护率达到52．94％,40 mmol／L FeSO4的保护率达到51．51％,K2HPO4不能诱导马铃薯块茎抗早疫病。经草酸、 KCl、FeSO4诱导处理后的马铃薯块茎中,POD,PAL,PPO的活性明显高于对照,表明化学物质可能通过提高这3种酶的活性来发挥其诱导抗病作用。
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| 关 键 词： | 化学激发子 马铃薯早疫病 过氧化物酶 苯丙氨酸解氨酶 多酚氧化酶 |
| 文章编号： | 1000-7091（2006）02-0113-05 |
| 收稿时间： | 2005-12-01 |
| 修稿时间： | 2005-12-01 |
Resistance in Potato Against Early Blight and Its Mechanism Induced by Chemical Substances |
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| LIU Yang,JIANG Ji-zhi,YANG Fa-mao,SONG Hai-liang. Resistance in Potato Against Early Blight and Its Mechanism Induced by Chemical Substances[J]. Acta Agriculturae Boreali-Sinica, 2006, 21(2): 113-117 |
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| Authors: | LIU Yang JIANG Ji-zhi YANG Fa-mao SONG Hai-liang |
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| Affiliation: | 1.College of Life Sciences, Hebei University, Baoding 071002,China; 2.Renqui Plant Protection Institute of Agriculiural Bureau of Hebei Province,Renqui 062550,China |
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| Abstract: | Oxalic acid, potassium chloride (KCl), ferrous sulfate (FeSO4) and dipotassium hydrogen phosphate (K2HPO4) were used to induce resistance in potato tubers(Solarium tuberosum L.) against early blight, respectively.The results were as follows: oxalic acid, KCl, and FeSO4 were effective elicitors of inducing resistance in potato tubers against early blight, but K2HPO4 could not do that. Preliminary research on the induced resistance mechanisms showed that the activities of POD, PPO, PAL in potato tubers were enhanced by oxalic acid, KCl, and FeSO4, while they couldn' t inhibit the growth of Alternaria solani in vitro. |
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| Keywords: | Chemical elicitor Potato early blight POD PAL PPO |
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