三叶草体内磷通过菌丝桥向黑麦草的传递研究

应用５ 室分隔法研究了供体三叶草体内的３２Ｐ 通过菌丝桥向受体黑麦草的传递作用．结果表明，菌根侵染供体三叶草根系之后，根外菌丝可穿过中室到达受体植株根室而再度侵染受体黑麦草的根系，从而形成三叶草－ 黑麦草根系之间的菌丝桥；供体三叶草体内的３２Ｐ 可通过根间菌丝桥传递给受体黑麦草，３２Ｐ 的传递量随受体植株施磷水平的提高而降低

Phosphorus transfer via mycorrhizal hyphal links from red clover to rye grass

A five compartments system was used to examine 32 P transfer via vesicular arbuscular mycorrhizal hyphal links from red clover to rye grass. The results show that after mycorrhizal fungus were inoculated in the root compartment for donor plant, hypha out of the donor's roots penetrated the central compartment, and reached the root compartment for receiver plant and inoculated its roots. Therefore, hyphal links were formed between roots of donor red clover and receiver rye grass, and could transfer 32 P from red colver to rye grass. The amount of 32 P transfer was decreased as P supplied to the receiver plant increased.