斑竹丛枝病过氧化物酶和多酚氧化酶的研究

Study on Peroxidase and Polyphenol Oxidase of Bamboo of Witches' Broom

斑竹正常健叶(用A表示)、病枝健叶(用B表示)、丛枝(用C表示)的过氧化化物酶(POD)和多酚氧化酶(PPO)进行比较分析,结果表明健叶(A)与丛枝(C)的酶活性有显著差异,健叶(A)的POD活性总是低于丛枝(C)对照,健叶与丛枝达0·01显著差异;而PPO活性健康叶片明显高于丛枝活性,达0·01显著差异。病健叶(B)的两种酶的活性很不稳定,测定值时高时低,但在总体趋势上,病健叶(B)POD、PPO活性处于健叶(A)和丛枝(C)两者中间;在0·05水平,病健叶POD活性与健叶之间无差异,病健叶PPO活性与丛枝之间无差异。

Peroxidase and Polyphenol oxidase of healthy leaf （A）, healthy leaf of infected branches （B） and bamboo witches broom （C） were compared. The results show that： PODA〈PODC. there is significant difference of POD activity between A and C at 0.01 level, whereas, PPOA〉PPOc, there is significant difference at 0.01 level. Each enzyme activity of B is unstable, on the whole, between A and C. At 0.01 level, there is insignificant difference of POD between A and B, and also no difference of PPO between B and C.