Within-species plant phylogeny drives ectomycorrhizal fungal community composition in tree roots along a timberline
Within-species plant phylogeny drives ectomycorrhizal fungal community composition in tree roots along a timberline
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种内植物系统发育驱动林线树根的外生菌根真菌群落组成
DOI：
10.1016/j.soilbio.2022.108880
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发表时间：
2022-11
影响因子：
9.7
通讯作者：
Haiyan Chu
中科院分区：
文献类型：
--
作者：
Teng Yang;Luyao Song;Han-Yang Lin;Ke Dong;Xiao Fu;Gui-Feng Gao;Jonathan M. Adams;Haiyan Chu
树木根部和周围土壤中的真菌群落结构受到多个物种之间的植物系统发育关系的显着约束。然而，是否植物系统发育关系在一个单一的物种可以介导真菌群落结构还没有调查。在这里，我们调查了外生菌根（EcM）和腐生（SAP）真菌群落结构细根和周边土壤中的白桦沿长白山林线。当占土壤性质，根性状和地理距离的影响，种内植物共生是唯一的驱动程序的根中的EcM真菌群落组成，而地理距离是最强的驱动程序的SAP真菌群落组成的土壤和根。根外基质真菌群落组装以确定性过程为主，SAP真菌群落组装以随机性过程为主。总的来说，研究结果表明，种内植物共生驱动根中的EcM真菌群落组成，真菌群落组装是行会和生境依赖。
Fungal community structure in tree roots and in surrounding soils is constrained significantly by plant phylogenetic relationships among multiple species. However, whether plant phylogenetic relationships within a single species can mediate fungal community structure has not been investigated. Here, we surveyed ectomycorrhizal (EcM) and saprotrophic (SAP) fungal community structure in fine roots and in neighboring soils ofBetula ermaniialong the Changbai Mountain timberline. When accounting for the effects of soil properties, root traits, and geographic distance, within-species plant phylogeny was the sole driver of EcM fungal community composition in roots, whereas geographic distance was the strongest driver of SAP fungal community composition in soils and roots. Deterministic processes were dominant in root EcM fungal community assembly, and stochastic processes were dominant in SAP fungal community assembly. Overall, the findings demonstrate that within-species plant phylogeny drives EcM fungal community composition in roots, and fungal community assembly is both guild- and habitat-dependent.
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