【摘要】 调查研究了四川遂宁地区磨溪油田石油污染土壤中丛枝菌根(AM)真菌资源和宿主植物根系侵染状况。结果表明,所调查的14种植物中13种能形成AM,占93%。菌根侵染率为17%~69%,菌根侵染强度为2%~24%,表明石油污染区植物具有较强的菌根依赖性。分离出AM真菌16种,其中缩球囊霉(G.constrictum)和摩西球囊霉(G.mosseae)为该区域优势种;描述了种的形态学特征,并对宿主植物根际土壤AM真菌的分布状况进行了初步探讨。更多还原

【Abstract】 The arbuscular mycorrhizal(AM) fungi and their colonization on 14 plant species in petroleum contaminated soil in Moxi Oil Field,Suining area,Sichuan Province were surveyed.It was found that 93% of the plant species formed AM.The AM fungal colonization rate and colonization intensity ranged from 17%～69% and 2%～24%,respectively,indicated that plants grown in petroleum contaminated soil might be highly dependent on AM fungi.16 AM fungi species were isolated and identified.G.constrictum and G.mosseae were the dominant species.The character of these species and their distribution status were also studied.更多还原