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林业科学 ›› 2014, Vol. 50 ›› Issue (10): 181-187.doi: 10.11707/j.1001-7488.20141025

• 研究简报 • 上一篇    下一篇

油松毛虫体内酶系对油松诱导抗性的响应机制

张雄帅, 周国娜, 高宝嘉   

  1. 河北农业大学林学院 保定 071000
  • 收稿日期:2013-04-23 修回日期:2014-03-27 出版日期:2014-10-25 发布日期:2014-11-12
  • 通讯作者: 高宝嘉
  • 基金资助:

    国家自然科学基金项目(30771739)。

Response Mechanisms of Pine Caterpillar Enzymatic System to Pine Induced Resistance

Zhang Xiongshuai, Zhou Guona, Gao Baojia   

  1. Forestry College, Agricultural University of Hebei Baoding 071000
  • Received:2013-04-23 Revised:2014-03-27 Online:2014-10-25 Published:2014-11-12

关键词: 油松, 油松毛虫, 诱导抗性, 解毒酶, 保护酶, 消化酶

Abstract:

To explore counter-defense response mechanism of pine caterpillar (Dendrolinus punctatus tabulaeformis Tsai et Liu) to the induced insect-resistance of Chinese pine (Pinus tabulaeformis), the Chinese pine was fed by different amount pine caterpillars to obtain induced insect-resistance in Pingquan of Hebei Province, and main detoxifying enzymes, protective enzymes and digestive enzymes of pine caterpillars fed on the Chinese pine leaf were determined. The results showed that most of enzymes in the pine caterpillars changed obviously after feeding various induced resistant pine leaves. Carboxylesterase, glutathione-transferase, superoxide dismutase, peroxidase and protease activity of the lavae increased significantly with the increasing feeding stimulation. Acetylcholinesterase, lipase and amylase activity of the lavae had some change but no obviously linear variation, and acetylcholinesterase activity had no change. The results indicated that carboxyl esterase, glutathione-s-transferees, superoxide dismutase, peroxidase and protease were important enzymes with that pine caterpillar responded to the pine defense. Within a certain range, the adaptive enzymes activity in the pine caterpillar increased as the increasing of the action strength and time of the pine induced defensive products to pine caterpillar.

Key words: Chinese pine, pine caterpillar, induced resistance, detoxifying enzymes, protective enzymes, digestive enzymes

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