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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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酚类物质在棉花对枯萎病抗性中的作用
, PP. 71-75
Keywords: 棉花,棉花枯萎病(fusariumoxysporumf.sp.vasinfectum),氟乐灵,抗病性/诱导抗性,可溶性酚,黄酮醇,不溶性胞壁结合酚
Abstract:
分析了枯萎病菌侵染及氟乐灵诱发处理后,棉苗叶片和根茎部组织中可溶性酚和黄酮醇以及不溶性细胞结合酚(胞壁结合简单酚、胞壁结合复杂酚聚合物及胞壁结合黄酮醇)含量的变化.结果表明:抗病品种棉苗组织中酚类物质的含量高于感病品种棉苗中的含量,氟乐灵诱发处理促进了棉苗组织中酚类物质的积累;枯萎病菌侵染可明显提高棉苗体内的酚含量,但抗病品种棉苗及经氟乐灵诱发处理并产生诱导抗性的棉苗受侵后其组织中酚含量的增加幅度更大.由此认为,棉花体内的酚类物质与棉花对枯萎病的抗病性以及由氟乐灵诱发的诱导抗性有关.
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