Elevation Matters More than Season in Shaping the Heterogeneity of Soil and Root Associated Ectomycorrhizal Fungal Community.
Elevation Matters More than Season in Shaping the Heterogeneity of Soil and Root Associated Ectomycorrhizal Fungal Community.
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在塑造土壤和根相关外生菌根真菌群落的异质性方面，海拔比季节更重要。
DOI：
10.1128/spectrum.01950-21
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发表时间：
2022-02-23
影响因子：
3.7
通讯作者：
Yang ZL
中科院分区：
文献类型：
--
作者：
Gong S;Feng B;Jian SP;Wang GS;Ge ZW;Yang ZL
外生菌根真菌在森林生态系统中具有重要作用，其丰富度和组成沿着海拔和季节变化而变化。然而，没有研究估计的相对重要性，海拔和季节性异质性预测的EcM真菌群落的分布，同时考虑不同的样本类型（根与土壤）。在这项研究中，我们收集了沿着1,500米海拔梯度的根和土壤样品，在雨季和旱季，位于“中国西南山区”，34个生物多样性热点之一，我们分析了他们使用下一代测序。无论样品类型，相似的EcM真菌丰富度模式，随着海拔的增加（下降，在森林地带，并在高寒草甸地带增加）和强大的社区之间的不同海拔带和两个季节之间的周转检测，EcM真菌群落相似性的变化400米海拔梯度相当于干湿季之间的社区周转。海拔和土壤因素对EcM真菌群落的影响最大。不同海拔带间的丰富度和群落组成的异质性均大于不同季节间的异质性，这主要是由于不同环境因子的综合作用决定了EcM真菌群落的海拔变化，而季节变化主要受温度和土壤养分的快速变化控制。重要性海拔和季节代表了两个重要的环境梯度，塑造了生物群落的结构，包括EcM真菌的异质性。以往的研究分别考虑了海拔和季节对外膜真菌群落的影响，但海拔和季节的相对重要性尚不清楚。本研究表明，海拔影响的EcM真菌群落的异质性比季节，这可能是因为环境因素的变异性更高，在不同海拔之间比跨季节。
Ectomycorrhizal (EcM) fungi play important roles in forest ecosystems, and their richness and composition can change along with elevation and season changes. However, no study has estimated the relative importance of altitudinal and seasonal heterogeneity in predicting the distribution of EcM fungal communities by simultaneously considering different sample types (root versus soil). In this study, we collected root and soil samples along a > 1,500-m elevation gradient during wet and dry seasons from Baima Snow Mountain, located in “the Mountains of Southwest China,” one of the 34 biodiversity hot spots, and we analyzed them using next-generation sequencing. Regardless of the sample type, similar EcM fungal richness pattern with increasing elevation (decline in the forest zone, and an increase at the alpine meadow zone) and strong community turnovers among different elevational zones and between two seasons were detected, and changes of EcM fungal community similarity on 400-m altitude gradient were equivalent to the community turnover between dry and wet seasons. Elevation and edaphic factors were shown to have the largest effects on EcM fungal community. The heterogeneity of richness and community composition was stronger among different elevational zones than across different seasons, mainly because the elevation variations in the EcM fungal community were shaped by the combined effects of different environmental factors, while seasonal changes were mainly controlled by temperature and fast-changing soil nutrients. IMPORTANCE Altitude and season represent two important environmental gradients that shape the structure of biome, including the heterogeneity of EcM fungi. Previous studies have separately considered the influences of altitude and season on EcM fungal communities, but the relative importance of altitude and season is still unknown. The present study revealed that elevation influences the heterogeneity of EcM fungal community more than season; this may be because the variability of environmental factors is higher across different elevations than that across seasons.
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DOI：
10.1016/j.jembe.2005.12.017
发表时间：
2006-03-07
影响因子：
2
作者：
Clarke, KR;Somerfield, PJ;Chapman, MG
通讯作者：
Chapman, MG
影响因子：
20.3
作者：
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通讯作者：
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DOI：
10.1098/rspa.1937.0109
发表时间：
1937-05-01
影响因子：
--
作者：
Bartlett, MS
通讯作者：
Bartlett, MS
影响因子：
4.4
作者：
Courty, Pierre-Emmanuel;Franc, Alain;Garbaye, Jean
通讯作者：
Garbaye, Jean
影响因子：
2.6
作者：
Cowles J;Boldgiv B;Liancourt P;Petraitis PS;Casper BB
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Casper BB