摘要
利用大豆子叶法对人工合成的几种葡聚寡糖激发子及其衍生物的生物活性进行测定 ,比较其结构与活性之间的关系。研究证明 ,葡聚七糖的活性明显高于六糖 ,葡聚六糖及其衍生物的EC50 值高于葡聚七糖及其衍生物。葡聚七糖、葡聚六糖还原端附加烷基对其EC50 值均没有明显影响。葡聚寡糖多聚体的活性要高于单一葡聚寡糖。
Several synthetic glucosyl-oligosaccharides were tested for their biological activities to trigger the defense reactions on soybean cotyledons. The results indicated that glucohexaose and its derivants had the higher values of EC_(50) on phytoalexin induction compared to glucoheptaoside and its derivants. Alkylation on the reducing end of these inducers could not eliminate their activities. Dimer of the glucosyl-oligosaccharide showed higher activity than that of its monomer and the activity of salicyl glucoheptaoside was higher than glucoheptaoside.
出处
《植物病理学报》
CAS
CSCD
北大核心
2004年第4期336-339,共4页
Acta Phytopathologica Sinica
基金
国家重点基础研究发展计划项目 ( 2 0 0 3CB114 40 0 )
国家自然科学基金资助项目 ( 3 0 2 70 910 )
'北京市自然科学基金重点项目( 60 2 10 0 4
60 0 10 0 2 )
