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Climate warming promotes deterministic assembly of arbuscular mycorrhizal fungal communities.
Xu, Xinyu; Qiu, Yunpeng; Zhang, Kangcheng; Yang, Fei; Chen, Mengfei; Luo, Xi; Yan, Xuebin; Wang, Peng; Zhang, Yi; Chen, Huaihai; Guo, Hui; Jiang, Lin; Hu, Shuijin.
Afiliación
  • Xu X; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Qiu Y; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Zhang K; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Yang F; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Chen M; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Luo X; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Yan X; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Wang P; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Zhang Y; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Chen H; School of Ecology, Sun Yat-sen University, Guangzhou, China.
  • Guo H; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
  • Jiang L; School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia, USA.
  • Hu S; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China.
Glob Chang Biol ; 28(3): 1147-1161, 2022 02.
Article en En | MEDLINE | ID: mdl-34668627
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Micorrizas / Micobioma Idioma: En Revista: Glob Chang Biol Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Micorrizas / Micobioma Idioma: En Revista: Glob Chang Biol Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido