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| Changes of Three Enzymes Activities in Resistance to Pepper Leveillula taurica |
| WANG Xuan1,2，WANG Li-hao1，SHI Yan-xia1，MAO Sheng-li1，LI Bao-ju1，ZHANG Bao-xi1* |
| 1Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing
100081,China;2Tianjin Agriculture Demonstration Center,Tianjin Academy of Agricultural
Sciences,Tianjin 300384,China |
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Abstract Using four pepper（Capsicum annuum L.）varieties with different resistance level to Leveillula taurica(Lev.)Arn.,we studied the activities changes of PAL,β-1,3-glucanase and chitinase in leaf tissue.The results showed that the infection of pathogen of powdery mildew induced the increase of activities of PAL,β-1,3-glucanase and chitinase.The increased extents of enzyme activities of PAL andβ-1,3-glucanase in resistant varieties were more than that in susceptible ones.It indicated that the relativity between activities changes of chitinase and
resistant to Leveillula taurica(Lev.)Arn.of pepper was not existing.
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Received: 21 December 2008
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