大孔吸附树脂纯化木麻黄单宁及对青枯菌的抑制

Purification of Tannin from Casuarina equisetifolia by Macroporous Adsorption Resin &Its Inhibition on Ralstonia solanacearum

木麻黄是我国东南沿海重要的防护林树种,青枯病是危害木麻黄的严重病害。用大孔吸附树脂对木麻黄提取物进行纯化,并用液相色谱对木麻黄中的单宁含量进行定性分析,最后通过单宁抑菌试验对木麻黄中的单宁与青枯菌抗性之间的关系进行研究,结果表明:木麻黄中提取的单宁对青枯菌具有抑制效果。

Casuarina equisetifolia is the main species as shelter forest in southeastern coast of China ,and Ralstonia solanacearum is one of the serious diseases of C .equisetifolia .Experiment for purification of C .equisetifolia tannins was conducted with macroporous adsorption resin ,and qualitative analysis of tannin content was carried out using HPLC .Bacteriostatic trial was used to explore the relationship between tannin and host resistance to bacterial wilt . The result showed that tannin extracted from C .equisetifolia had inhibited effect to R .solanacearum .