镇安板栗外生菌根真菌多样性研究  

Community Structure of Ectomycorrhizal Fungi Associated with Castanea mollissima in Zhen'an County

作　　者：宋彦君[1] 季志平[2] 吕平会[2] 王晓冰[2] 韩其晟[2] 龙东风 

机构地区：[1]华东师范大学生态与环境科学学院,上海200241 [2]西北农林科技大学林学院,陕西杨陵712100

出　　处：《西北林学院学报》2016年第4期188-194,共7页Journal of Northwest Forestry University

基　　金：国家"十二五"科技支撑计划项目(2013BAD14B404);西北农林科技大学科技创新项目(XNY2013-33)

摘　　要：为了明确秦岭山区与板栗共生的外生菌根真菌群落组成,以西北农林科技大学镇安板栗教学实验基地板栗试验林为对象,对板栗外生菌根真菌群落结构进行了研究。在形态学鉴定的基础上,综合运用ITS序列分析技术,共检测到27种外生菌根真菌与板栗共生,其中3种为子囊菌,24种为担子菌,分属8科,9属;优势种不明显,常见种有Russula sp.1、Tomentella sp.3、Inocybe sp.、Russula livescens,其他23种均属于稀有种;优势类群为Russula、Tomentella2属。Russula、Tomentella外生菌根真菌是与秦岭山区板栗共生的优势真菌类群,可能在促进板栗植株生长、提高板栗品质等方面发挥着重要作用。研究结果为秦岭山区板栗共生外生菌根筛选以及板栗林生产培育等方面提供了一定的理论依据。Taking the forests of Castanea mollissima,located in the Teaching and Experimental Base of Northwest AF University,Zhen＇an County,Shaanxi Province as research objects,the community structure of ectomycorrhizal（ECM）fungi associated with C.mollissimain Qinling Mountains was investigated.Based on the results of morphological identification,technology of ITS sequence analysis was adopted.The results indicated that there existed 27 different ECM fungi,belonging to 8families and 9generas,in which24 types belonged to Basidiomycetes,and 3to Ascomycete.No dominant species was found.The common species were Russulasp.1,Tomentellasp.3,Inocybe sp.and R.livescens,and the other 23 species were rare species.Among these ectomycorrhizal fungi,Russulaand Tomentella were the dominant group.The results would provide a theoretical basis for the selection of ECM fungi and cultivation of chestnut in Qinling Mountains.

关 键 词：板栗 外生菌根真菌 形态鉴定 ITS 群落结构 

分 类 号：S763.15[农业科学—森林保护学]