泡桐丛枝病发生与叶片酚和氨基酸变化关系研究

The relationship between paulownia witches' broom and phenol and amino acid change in leaves

通过对不同种泡桐叶片内总酚和氨基酸含量变化的研究 ,发现健康植株叶片的酚含量皆比感病植株叶片内的高 ,其变化水平随植物种类不同而有一定的差异 ;在所分析的台湾泡桐和楸叶泡桐氨基酸中 ,只有胱氨酸和苯丙氨酸表现出随叶片感病程度的加深 ,呈现出的变化趋势相同 ,即胱氨酸的含量随叶片感病程度的加深逐渐增多 ,而苯丙氨酸的含量则逐渐减少。这些变化可能与泡桐丛枝病的发生有某种联系。

This paper dealt with the relationship between paulownia witches' broom and phenol and amino acid change in leaves. The results indicated the content of phenol in healthy leaf was higher than that in the affected leaf. At the same time, there was significant difference on the amino acids between the healthy and diseased leaves of P. catalpifolia and P. kawakamii. The amount of cystine in the affected leaves was higher than that in the healthy leaves, but the change of amount of phenylalanine in the affected and healthy leaves was contrary. The change of amino acids in the leaves might be related to the witches; broom of the Paulownia trees.