应用电子探针技术进行松树菌根与根际粘胶层关系的研究

STUDIES ON THE RELATION BETWEEN MYCORRHIZA OF PINE AND MUCILAGE LAYER IN RHIZOSPHERE WITHELECTRON MICROPROBE ANALYSIS

火炬松和湿地松菌根根际的粘胶层空间范围均大于其普通根根际，前者为５０μｍ×５５μｍ和９０μｍ×７０μｍ，后者力２０μｍ×（３０～４０）μｍ和５０μｍ。粘胶层范围的增大，既有真菌菌丝产生的粘胶物质，也含真菌菌丝本身。

The ranges of mucilage layer in mycorrhizosphere of loblolly pine and slash pine were foundwider than their common root rhizospheres. The former varies within a range of 50 μm× 55μm and90 μm ×70 μm, and the latter within a range of 20 μm ×(30～ 40) μm and 50 μm. The ranges of mucilsge layer expand owing to the activity of mycorrhizas, producing not only mucilages but also fungalhyphae themselves.