Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15945 |
Climate warming promotes deterministic assembly of arbuscular mycorrhizal fungal communities | |
Xinyu Xu; Yunpeng Qiu; Kangcheng Zhang; Fei Yang; Mengfei Chen; Xi Luo; Xuebin Yan; Peng Wang; Yi Zhang; Huaihai Chen; Hui Guo; Lin Jiang; Shuijin Hu | |
2021-11-08 | |
发表期刊 | Global Change Biology |
出版年 | 2021 |
英文摘要 | Arbuscular mycorrhizal fungi (AMF) significantly contribute to plant resource acquisition and play important roles in mediating plant interactions and soil carbon (C) dynamics. However, it remains unclear how AMF communities respond to climate change. We assessed impacts of warming and precipitation alterations (30% increase or decrease) on soil AMF communities, and examined major ecological processes shaping the AMF community assemblage in a Tibetan alpine meadow. Our results showed that warming significantly increased root biomass, and available nitrogen (N) and phosphorus (P) in soil. While precipitation alterations increased AMF abundances, they did not significantly affect the composition or diversity of AMF communities. In contrast, warming altered the composition of AMF communities and reduced their Shannon–Wiener index and Pielou's evenness. In particular, warming shifted the AMF community composition in favor of Diversisporaceae over Glomeraceae, likely through its impact on soil N and P availability. In addition, AMF communities were phylogenetically random in the unwarmed control but clustered in warming plots, implying more deterministic community assembly under climate warming. Warming enhancement of root growth, N and P availability likely reduced plant C-allocation to AMF, imposing stronger environmental filtering on AMF communities. We further proposed a conceptual framework that integrates biological and geochemical processes into a mechanistic understanding of warming and precipitation changes’ effects on AMF. Taken together, these results suggest that soil AMF communities may be more sensitive to warming than expected, highlighting the need to monitor their community structure and associated functional consequences on plant communities and soil C dynamics under the future warmer climate. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/340922 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Xinyu Xu,Yunpeng Qiu,Kangcheng Zhang,et al. Climate warming promotes deterministic assembly of arbuscular mycorrhizal fungal communities[J]. Global Change Biology,2021. |
APA | Xinyu Xu.,Yunpeng Qiu.,Kangcheng Zhang.,Fei Yang.,Mengfei Chen.,...&Shuijin Hu.(2021).Climate warming promotes deterministic assembly of arbuscular mycorrhizal fungal communities.Global Change Biology. |
MLA | Xinyu Xu,et al."Climate warming promotes deterministic assembly of arbuscular mycorrhizal fungal communities".Global Change Biology (2021). |
条目包含的文件 | 条目无相关文件。 |
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