Characterization and spatial distribution of ectomycorrhizas colonizing aspen clones released in an experimental field
Characterization and spatial distribution of ectomycorrhizas colonizing aspen clones released in an experimental field
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DOI：
10.1007/s00572-003-0266-1
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发表时间：
2004-10-01
期刊：
影响因子：
3.9
通讯作者：
Buscot, F
中科院分区：
文献类型：
--
作者：
Kaldorf, M;Renker, C;Buscot, F
通过形态分型、限制性分析和内转录间隔区 (ITS) 测序对实验田中释放的白杨克隆的外生菌根 (EM) 进行了表征。此外，还分析了它们的群落结构和空间分布。在观察到的 23 种形态类型中，六种真菌生物群占主导地位，约占所有外生菌根的 90%：Cenocaccum geophilum、Laccaria sp.、Phialocephala fortinii、两种不同的 Thelephoraceae 和 Pezizales 的一种成员。三种最常见的形态类型空间分布均匀，反映了实验场的高度同质性。其他三种形态类型的分布与距试验田边界的云杉林和落叶树的距离相关。这两种模式使得外生菌根真菌（EMF）的两种入侵策略得以识别，其成功取决于 EMF 对当地生态条件的适应。
Ectomycorrhizas (EM) from aspen clones released on an experimental field were characterized by morphotyping, restriction analysis and internal transcribed spacer (ITS) sequencing. In addition, their community structure and spatial distribution was analyzed. Among the 23 observed morphotypes, six mycobionts dominated, forming roughly 90% of all ectomycorrhizas: Cenococcum geophilum, Laccaria sp., Phialocephala fortinii, two different Thelephoraceae, and one member of the Pezizales. The three most common morphotypes had an even spatial distribution, reflecting the high degree of homogeneity of the experimental field. The distribution of three other morphotypes was correlated with the distances to the spruce forest and deciduous trees bordering the experimental field. These two patterns allowed two invasion strategies of ectomycorrhizal fungi (EMF) to be recognized, the success of which depends on adaptation of the EMF to local ecological conditions.