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林业科学 ›› 1998, Vol. 34 ›› Issue (2): 43-50.

• 论文及研究报告 • 上一篇    下一篇

油松对赤松毛虫的诱导化学防御

李镇宇,陈华盛,袁小环,许志春,王燕   

  1. 北京林业大学 北京 100083
  • 收稿日期:1997-07-02 出版日期:1998-03-25 发布日期:1998-03-25
  • 基金资助:
    国家自然科学基金重点资助项目(923029)

INDUCED CHEMICAL DEFENSES OF PINUS TABULAEFORMIS Carr. TO DENDROLIMUS SPECTABILIS Butler

Zhenyu Li,Huasheng Chen,Xiaohuan Yuan,Zhichun Xu,Yan Wang   

  1. Beijing Forest University Beijing 100083
  • Received:1997-07-02 Online:1998-03-25 Published:1998-03-25

摘要:

对受赤松毛虫为害与未受害油松的二年生针叶及用这两种油松的完整针叶饲养的赤松毛虫幼虫生长发育情况进行了测定分析,发现植株受害后针叶异亮氨酸酪氨酸、蛋氨酸、赖氨酸、含量增加,氨基酸总量及多数游离氨基酸含量下降;水溶性总糖、粗脂肪、单宁、生物碱含量及总糖/氨基酸比例上升;脂肪酸、酚类、萜烯、矿质元素均有较大幅度变化,用受害后油松针叶饲养的幼虫摄食量减少33.5%,死亡率升高10%,产卵量减少。

关键词: 油松, 赤松毛虫, 诱导化学防御

Abstract:

According to the bioassays of the two-year needles of damaged and undamaged Pinus tabulaeformis Carr. and the situation of Dendrolimus spectabilis Butler larvaes growth, development and reproduction fed on these two kinds of leaves, it was found that the chemical components in the leaves of damaged pine had significant changes. The concentrations of isoleucine, methionine, tyrosine, lysine increased, total amino acids and other several amino acids descended. The concentrations of soluble sugar, crude fat, tannins, alkaloid and the ratio of total sugar to total amino acids all rises. There were large changes in fatty acids, phenenes, terpenoids and mineral elements. The larvae fed on leaves of damaged trees had a 33.5% lower in herbivory, a 10% growth in mortality, and fecundity dropped. Damaged P. tabulaeformis showed a significant induced chemical defenses.

Key words: Pinus tabulaeformis Carr., Dendrolimus spectabilis Butler, Induced chemical defence