Host effects on ectomycorrhizal fungal communities: insight from eight host species in mixed conifer-broadleaf forests
Host effects on ectomycorrhizal fungal communities: insight from eight host species in mixed conifer-broadleaf forests
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DOI：
10.1111/j.1469-8137.2007.02016.x
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发表时间：
2007-01-01
期刊：
影响因子：
9.4
通讯作者：
Hogetsu, Taizo
中科院分区：
文献类型：
--
作者：
Ishida, Takahide A.;Nara, Kazuhide;Hogetsu, Taizo
为了进一步了解宿主对外生菌根真菌（EMF）群落结构的影响，比较了日本两片针阔混交林中不同宿主种、属和科的EMF群落，并采用分子鉴定方法检测了6属8种共存种的EMF根尖结果表明，该地区共检测到205种植物，总物种丰富度超过300种。在55个EMF物种发生三次或三次以上，8个表现出显着偏见的主机偏好。Mantel检验表明，EMF群落相似性与寄主分类距离呈显著负相关。除趋势对应分析主要依据寄主分类地位和演替地位来划分EMF群落，因此，分类地位和演替地位相似的寄主上EMF群落相似。很大比例的EMF表现出寄主特异性，这可能有助于极多样化的EMF群落在针阔混交林。
To advance our understanding of host effects on the community structure of ectomycorrhizal fungi (EMF), EMF communities were compared among different host species, genera and families in two mixed conifer-broadleaf forests in Japan.Using molecular identification methods we examined EMF root tips of eight coexisting species belonging to six genera (three families): Abies and Tsuga (Pinaceae), Betula and Carpinus (Betulaceae) and Fagus and Quercus (Fagaceae).In total, 205 EMF species were detected, and the total richness was estimated to exceed 300 species using major estimators. Of the 55 EMF species occurring three or more times, eight showed significantly biased host preference. A Mantel test showed a significantly negative correlation between EMF community similarity and host taxonomic distance. Detrended correspondence analysis separated EMF communities mainly by host taxonomic and successional status.Thus, EMF communities are similar on hosts with similar taxonomic and successional status. A significant proportion of EMF exhibited host specificity, which may contribute to the extremely diverse EMF community in conifer-broadleaf forests.