药用植物与丛枝菌根真菌的选择性侵染研究

目的 观察丛枝菌根真菌(AMF)对植物的侵染过程及其规律.方法 采用数码显微成像系统对侵染结构进行了观察,测定6种AMF对4种药用植物的侵染率；采用湿筛法对AMF孢子进行分离并拍照.结果 试验发现不同种AMF对同种植物的侵染率有较大差别,不同植物对相同菌种的选择也有较大差别.结论 摩西球囊霉、根内球囊霉等AMF对上述药用植物均具有较高的侵染率,因此可作为药用植物的丛枝菌根研究首选菌种.

Selectivity Infection of Arbuscular Mycorrhizal Fungi in Medicinal Plants

Objective To observe the infection process and regularity of arbuscular mycorrhizal fungi （AMF） with plants. Methods The infection rate of 6 kinds of AMF （Glomus versiforme, Glomus aggregatum, Glomus mosseae, Glomus intraradices, Glomus constrictum and Glomus claroideum） in 4 kinds of medicinal plants （Scutellaria baicalensis Georgi, Ocimum basilicum non L., Artemisia annua L. and Atractylodes lancea （Thunb DC.） were studied. AMF spores were seperated with wet screening method. Results The infection rate of 4 kinds of AMF in a certain medicinal plant were different. The selectivity of different plants to a certain kind of AMF were also different. Conclusion The infection rate of G. mosseae and G. intraradices in all 4 kinds of medicinal plants were higher than the other AMF. It is suggested G. mosseae and G. intraradices are prefered AMF for medicinal plant research.