作　　者： ; ; ; ;

机构地区： 浙江大学生命科学学院

出　　处： 《科技通报》 2009年第2期233-237,247,共6页

摘　　要： 外来植物入侵对土壤微生物群落的影响一直受到关注。本文研究了外来植物加拿大一枝黄花(Solidago candensis L.)的入侵对本地丛枝菌根真菌(AMF)的影响,发现加拿大一枝黄花的入侵改变了本地植物群落物种组成,本地植物如鸡眼草(Kummerowia striata(Thunb.)Schindl.)和黑麦草(Lolium perenne L.)的菌根侵染率降低。与本地优势植物鸡眼草共生菌的种类发生变化,土壤AMF孢子密度明显降低,土壤由以摩西球囊菌(Glomus mosseae)和幼套球囊菌(Glomus etunicatum)为优势转为以地球囊菌(Glomus geosperum)和幼套球囊菌(Glomus etunicatum)为优势种。 Whether and how plant invasion affecting on soil biological community has been greatly concerned recently. The effects of invasive species Solidago candens/s L. on local arbuscular mycorrhizal fungi were examined in this study. Due to S. candens/s invasion the local plant composition was changed greatly. S. candens/s invasion reduced mycorrhizal fungal colonization rate of native plants K. striata and L. perenne. Compared to in the no invasion plant community, mycorrhizal fungi species in roots of the native plant K. striata in the S. candens/s dominated community was changed. Mycorrhizal fungal spore density in soil was reduced due to the invasion. Dominant mycorrhizal fungal species in no invasion site were Glomus mosseae and Glomus etunicatum,but in S. candensis dominated site were Glomus geosperum and G. etunicatum.

关 键 词： 外来植物 本地植物 丛枝菌根真菌

领　　域： [环境科学与工程] [生物学]