First detection of Endogone ectomycorrhizas in natural oak forests
First detection of Endogone ectomycorrhizas in natural oak forests
复制标题
首次在天然橡树林中检测到 Endogone 外生菌根
DOI：
10.1007/s00572-016-0740-1
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发表时间：
2017
期刊：
影响因子：
3.9
通讯作者：
Yamada A
中科院分区：
文献类型：
--
作者：
Yamamoto K;Endo N;Degawa Y;Fukuda M;Yamada A
毛霉亚门的内生菌目是真菌的一个早期分支，包括外生菌根真菌。因此，该目被认为是阐明EM协会演化的关键分类单元。最近的研究表明，担子菌门和子囊菌门的EM谱系的多样性很高;然而，内生菌目及其亲属的EM协会仍然在很大程度上未知。在这项研究中，EM根尖与一个独特的真菌鞘，与无隔和高度分枝的菌丝的宽度可变，被确定在日本温带的麻栎和皱叶栎。经鉴定为内生菌，通过对核糖体RNA大小亚基和延伸因子1α基因的系统发育分析，将其定位为豌豆内生菌的姐妹分支。这是北方天然林内生真菌的首次报道，也是栎属的首次发现。
The order Endogonales in Mucoromycotina, an early divergent lineage of fungi, includes ectomycorrhizal (EM) fungi. This order is therefore considered a key taxon for elucidation of the evolution of EM associations. Recent studies have revealed high diversity of EM lineages of Basidiomycota and Ascomycota; however, EM associations of Endogonales and its relatives remain largely unknown. In this study, EM root tips with a unique fungal sheath, with aseptate and highly branched hyphae of variable widths, were identified inQuercus acutissimaandQuercus crispulaforests in the temperate zone of Japan. The mycobionts were confirmed asEndogonesp., which were placed as a sister clade ofEndogone pisiformis, based on phylogenetic analyses of the small and large subunits of the nuclear ribosomal RNA and elongation factor-1α genes. This is the first report of EM ofEndogonein natural forests of the Northern Hemisphere and the first finding onQuercus.