浅黄根须腹菌侵染油松形成外生菌根  

Ectomycorrhiza formation on Pinus tabulaeformis through Rhizopogon luteolus infection

作　　者：邵东华[1] 杨喜平 张晓东[1] 白淑兰[1] 峥嵘[1] 王琚钢[1] 

机构地区：[1]内蒙古农业大学林学院,呼和浩特010019 [2]乌海市园林局,内蒙古乌海016000

出　　处：《生态学杂志》2013年第1期78-81,共4页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(31060110);内蒙古农业大学与中国农业大学合作基金项目资助

摘　　要：在实验室盆栽条件下,以油松(Pinus tabulaeformis)60d实生幼苗为对象,接种浅黄根须腹菌(Rhizopogon luteolus),探讨浅黄根须腹菌是否能侵染油松,并与其形成菌根,以及形成菌根后对油松的生长效应。结果表明:接种浅黄根须腹菌2个月后油松可形成典型的外生菌根,菌根侵染率超过80%,从菌根分支特征看,二叉状菌根占80%,棒状菌根占20%,菌套白色、明显,厚度达90μm,菌根分支直径0.4～0.6mm,长度1.5～2.5mm,外延菌丝白色、绒毛状,多条菌丝缠绕成菌索,长3.5～5.5mm;浅黄根须腹菌与油松形成菌根后,对油松根系生长有显著的促进作用,菌根苗根冠比是对照苗的2.7倍,形成菌根后能显著促进油松对环境中磷的吸收。Taking 60-day-old Pinus tabulaeformis seedlings as test objects, a pot culture experi- ment under laboratory condition was conducted to investigate whether the inoculation with Rhizopogon luteolus could infect P. tabulaeformis and form ectomycorrhiza as well as the effectiveness of this infection on the growth of P. tabulaeformis. After two months of inoculation, the ectomycorrhiza formed, and the mycorrhizal colonization rate was over 80%. In terms of branching characteristics, the bina ectomycorrhiza accounted for 80% , and the rod-shat）ed one shared 20%.

关 键 词：外生菌根 油松 浅黄根须腹菌 

分 类 号：S791.254[农业科学—林木遗传育种]