AM真菌在煤矿废弃物中生态适应性的初步研究

以粉煤灰、草炭、蛭石、河沙为培养基质,分别对4种不同AM真菌:Glomus mosseae,G.diaphanum,G.intraradices和G.versiforme的生态适应性进行研究。结果表明,菌根的侵染率、孢子密度和菌丝长度分别与菌根真菌种类、培养基质状况及寄主植物种类有关。4种基质的扩繁效果顺序为:河沙>粉煤灰>草炭>蛭石。G.mosseae和G.diaphanum在基质中的产孢量和菌丝长度优于G.intraradices和G.versiforme,可作为优势菌株。4种菌根真菌在粉煤灰中对寄主的侵染率均达到60%以上,粉煤灰作为菌根真菌培养基质具有更大潜力和实际应用价值。

PRELIMINARY STUDY ON ECOLOGICAL ADAPTABILITY OF ARBUSCULAR MYCORRHIZAL FUNGI IN COAL SOLID WASTES

Four different substances, fly ash, peat, vermiculite and sand were used as AM fungal culture mediums to investigate the ecological adaptability of four species of arbuscular mycorrhizal fungi, Glomus mosseae, G diaphanum, G intraradices and G versiforme. The result showed that mycorrhizal colonization rate, spore density and hyphal length depended on the species of AM fungi, the status of culture medium and the host species. Sand was the best culture medium for AM fungi, and next came fly ash, peat and vermiculite. The spore density and hyphal length of G mosseae and G diaphanum were prior to G imraradices and G versiforme. G mosseae and G diaphanum could be regarded as dominant mycorrhizal fungus. The colonization rate of four species of mycorrhizal fungi was over 60% for fly ash. It showed a great potential and application value for fly ash used as AM culture substance.