菌根与水分胁迫

被引:9
作者
吴炳云
机构
[1] 北京林业大学园林系
关键词
菌根化; 菌根菌; 寄主植物; 上壤; 菌索; 菌束; 外生菌根; 菌根真菌; 水分胁迫;
D O I
10.13332/j.1000-1522.1991.04.014
中图分类号
学科分类号
摘要
<正> 许多研究认为,菌根对于寄主植物的一种主要效益可归因于菌根通过增加吸收面积而增加对营养的吸收[1,2]。也有人提出,菌根对于低土壤水势条件下的寄主植物十分有益[3,4]。在长期的进化过程中,菌根真菌、寄主植物和环境之间形成了一种高度平衡的三角形关系(图1),这三者之间相互促进、相互制约,构成一个稳定的生态系统。水分作为该
引用
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页码:95 / 104
页数:10
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