罗协;娄娅;崔菁苗;董锦艳;

• 1:西南大学生命科学学院

摘要(Abstract)：

从三峡库区消落带3种常见野生植物的15个根际土壤样本中共分离鉴定出24种丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF),包括球囊霉属Glomus 15种、无梗囊霉属Acaulospora 3种、近明球囊霉属Claroideoglomus 2种和多样孢霉属Diversispora、内养囊霉属Entro phospora、巨孢囊霉属Gigaspora及类球囊霉属Paraglomus各1种。其中地表多样孢囊霉D.epigaea和伯氏类球囊霉P.pernambucanum是我国的新记录种。研究发现这3种植物根际土壤中丛枝菌根真菌的优势属为球囊霉属,优势种为地球囊霉G.geosporum、单孢球囊霉G.monosporum、地表球囊霉G.versiforme、副冠球囊霉G.coronatum和黄孢球囊霉G.flavisporum。研究还发现在这3种植物根际土壤中丛枝菌根真菌的孢子密度平均为839±170个/100g土,物种丰富度在14–22种之间,Shannon-Wiener多样性指数和均匀度分别在1.97–2.21、0.409–0.479之间波动。结果表明三峡库区消落带是一个AMF多样性研究的资源库。

关键词(KeyWords)： 丛枝菌根真菌;孢子密度;物种丰富度;中国新记录种

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 罗协;娄娅;崔菁苗;董锦艳;

DOI: 10.13346/j.mycosystema.150029

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