首页|Distinguishing ectomycorrhizal and saprophytic fungi using carbon and nitrogen isotopic compositions
Distinguishing ectomycorrhizal and saprophytic fungi using carbon and nitrogen isotopic compositions
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Ectomycorrhizal fungi,a group of widcspread symbiotic fungi with plant,obtain carbon source from trees and improve plant mineral nutrient uptake with their widespread hyphal network.Ectomycorrhizal fungi can be used as inoculants to improve the survival ratcs of plantation.Saprophytic fungi use the nutrition from the debris of plant or animals,and it is difficult to distinguish the saprophytic and ectomycorrhizal fungi by morphological and anatomic methods.In this research,the differences of stable carbon and nitrogen isotopic compositions of these fungi were analyzed.The results showed that the abundances of 13C of were higher than those of ectomycorrhizal fungi and the abundances of 15N of saprophytic fungi were lower than those of ectomycorrhizal fungi.Such differences of stable carbon and nitrogen isotopic compositions between ectomycorrhizal fungi and saprophytic fungi can be ascribed to their different nutrition sources and ecological functions.These results collectively indicate that stable carbon and nitrogen isotopic compositions are an effective proxy for distinguishing between ectomycorrhizal and saprophytic fungi.
Ectomycorrhizal fungiSaprophytic fungiStable isotopic compositionsEcological function
State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Beijing 100083,China
State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China
Department of Geology and Environmental Earth Science,Miami University,Oxford,OH 45056,USA
Guizhou Academy of Sciences,Guiyang 550001,China
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National Science Fund for Creative Research GroupsNational Science Fund for Creative Research GroupsCentral University Basic Scientific Research Business Expenses Special Funds
NETL
NSTL
万方数据
维普
