树木抗性与小蠹虫生存策略的进化

被引：19

作者：

陈辉

袁锋

机构：

[1] 西北农林科技大学

来源：

林业科学 | 2002年 / 05期

关键词：

小蠹虫; 共生真菌; 生存策略; 抗生; 进化;

D O I：

暂无

中图分类号：

S763 [森林病虫害及其防治];

学科分类号：

0904 ;

摘要：

小蠹虫对寄主树木的入侵危害不仅受到树木原生性抗性的直接影响 ,而且小蠹虫在寄主树木组织内的定居繁衍也受到寄主树木诱导性抗性的制约。寄主树木抗性的强弱决定小蠹虫入侵寄主树木的数量 ,也促使小蠹虫与特定的真菌共生 ,真菌通过对寄主树木生理生化代谢的影响 ,以削弱寄主树木抗虫性 ,从而为小蠹虫在寄主树木组织内的定居创造必备的生存条件。同时小蠹虫为适应真菌的共生和寄主树木的抗虫性 ,促使小蠹虫生存繁衍策略高度进化 ,从而形成小蠹虫—共生真菌—寄主树木三者协同进化共生的关系

引用

页码：147 / 151

页数：5

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