杨树单宁与酚类物质种类及含量与光肩星天牛危害之间关系的研究

The relation between tannin and phenol constituents and resistance to Anoplophora glabripennis of various poplar tree species

通过对不同杨树木质部和韧皮部的单宁及酚类物质的种类及含量的测定,分析了两类主要次生代谢物质的差异与天牛危害之间的关系。结果表明,不同无性系间木质部单宁含量与其抗虫性呈正相关;树木酚及酚酸含量越高,对天牛的抗性越强,但不同酚酸间的变化趋势不同。

Through the measure of tannin and phenol constituents of 6 poplars,the relation between the resistance of poplars and contents and components of them was studied. The results showed that: the contents of tannin in xylem is positively related to the resistance of poplars,but those in phloem have nothing to do with the resistance . The resistance of poplars is higher with higher contents of phenol constituents,and there is a different trend with the different phenol.