日本落叶松根际外生菌根真菌多样性

Ectomycorrhizal fungal diversity associate roots of Larix kaempferi

为在日本落叶松育苗和造林中科学应用外生菌根技术,研究了日本落叶松的根际外生菌根真菌群落组成。2012年和2013年共采集了40份日本落叶松根系样本,通过形态特征检测到55种外生菌根形态型,ITS序列分析显示共28种外生菌根真菌与日本落叶松根系共生。其中,土生空团菌是日本落叶松根系外生菌根真菌群落的优势物种,在95%的土壤样本中均检测到,占根尖总数的34.8%;Russula sp.3(编号),Sebacina sp.2,Tomentella sp.1,Russula sp.2和Sebacina sp.1是常见种;其余14个分类单元是稀有种。

To improve the application of mycorrhizal technology in seedling and afforestation of Larix kaempferi,ectomycorrhizal(ECM)fungi associated with L.kaempferi roots were investigated.A total of40root samples of L.kaempferi were collected in2012and2013,and55ECM morphotypes were detected and28ECM fungi identified based on ITS sequence analysis.Of these ECM fungi,Cenococcum geophilum was the most dominant species,which was detected among95%samples,occupying34.8%root tips,Russula sp.3,Sebacina sp.2,Tomentella sp.1,Russula sp.2and Sebacina sp.1were common species,the other14species were rare speces.