Morphological Diversity Of Ectomycorrhizae Of Eight Dominant Tree Species In The Khentii Region In Mongolia

In this paper,we mainly studied of ectomycorrhizal morphological characteristics of eight dominant tree species in the Khentii Mountain region in Mongolia country.The Khentii Mountain is located in the northeast of Mongolia,covers an area of 122.7074 million km2,There are abundant vegetation types formed its unique species diversity.In this study selected major symbiotic mycorrhizal trees species,taking mycorrhizal symbiosis as the study object,from one tree species starting and from the morphological and anatomical angle,studied these ectomycorrhizal types systematicly and comprehensive characteristic of 59 ectomycorrhizal types were described using photograph.In the research method innovatively established in mycorrhizal microstructure of mantle set of outer and inner hyphae arrangement scheme as the main feature on the basis of classification and identification,increases the reliability of mycorrhizal types based on cell morphology.The main conclusions are as follows:1.From the eight dominant trees identified 59 species of mycorrhizal morphological types,Siberian Pine and Scots Pine have 11 types,Siberian larch has 10 types,Siberian Spruce has 8 types,Birch and Willow have 6 types,Poplar has 4 types and Elm has 3 types.Indicates that forest ecosystems with high mycorrhizal diversity in the Khentii Mountain.2.In the investigation of 8 dominant trees species,Cenococcum geophilum occured in 5 trees species which were Siberian Larch,Siberian Spruce,Scots Pine,Aspen and Birch.It shown that the C.g.is the dominant fungal species in the Khentii Mountain forest ecosystem.3.Basidiomycotina is priority among of investigated ectomycorrhizal fungi in the Khentii region forest and Ascomycotina is less.The study on mycorrhizae field in the Khentii Mountain in Mongolia was firstly conducted,the result would fill the empty in this field in Mongolia.