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Changes of Soluble Protein and Reducing Sugar Content in Papaya Plants Infected by PRSV
Author(s): 
Pages: 10-13,16
Year: Issue:  4
Journal: SUBTROPICAL PLANT SCIENCE

Keyword:  番木瓜环斑花叶病毒可溶性蛋白还原糖;
Abstract: 本文对番木瓜不同抗性的品种感染环斑花叶病毒后,可溶性蛋白含量和电泳谱带以及还原糖含量的变化规律进行了研究,并分析其与抗性的关系.结果表明,接种处理后,感病品种(岭南种)的可溶性蛋白含量变化率的峰值较抗病品种(穗中红48号)出现早且高;前者出现在接种后24h,高达54.6%,而后者出现在接种后48h,为38.2%.在未接种处理时,感病品种叶片可溶性蛋白谱带较抗病品种多1条;但在接种初期(接种后24h),抗病品种的蛋白谱带比感病品种多1条(Rf值为0.602).不同抗性品种在接种后的还原糖含量变化也有差异,抗病品种的还原糖含量变化率在接种后48h达到高峰,峰值为12.3%;而感病品种的还原糖含量变化率在接种后都为负值.
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