金沙江干热河谷宾川、永胜段的丛枝菌根

用碱解离、酸性品红染色法对金沙江干热河谷宾川、永胜段 6 5种植物的丛枝菌根状况进行了调查 ,结果发现干热河谷不同河段植物根系的丛枝菌根真菌感染率、感染程度有一定的差异 ;干热河谷中大多数常见植物在不同河段中都形成丛枝菌根 ,同种植物在不同河段中的丛枝菌根状况可能与植物对丛枝菌根的依赖性有关。

Arbuscular Mycorrhizae in the Dry-hot Valley of Jinsha River(Binchuan and Yongsheng)

The arbuscular mycorrhizal status of 65 plant species growing in the dry-hot valley of Jinsha River (Binchuan and Yongsheng Counties) was surveyed by means of acid stain after the roots were lysised in alkaline solution.It was found that plants growing in different areas of the dry-hot valley of Jinsha River shown a different arbuscular mycorrhizal fungal infection and infection intensity.Most of common plant species growing in the dry-hot valley of Jinsha River usually formed arbuscular mycorrhizae.The arbuscular mycorrhizal status of a definite plant species in different parts of the river may be relative to its mycorrhizal dependency.