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Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems

Fungi regulate nutrient cycling, decomposition, symbiosis, and pathogenicity in cropland soils. However, the relative importance of generalist and specialist taxa in structuring soil fungal community remains largely unresolved. We hypothesized that generalist fungi, which are adaptable to various en...

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Autores principales: Wang, Jun-Tao, Shen, Ju-Pei, Zhang, Li-Mei, Singh, Brajesh K., Delgado-Baquerizo, Manuel, Hu, Hang-Wei, Han, Li-Li, Wei, Wen-Xue, Fang, Yun-Ting, He, Ji-Zheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8299105/
https://www.ncbi.nlm.nih.gov/pubmed/34305842
http://dx.doi.org/10.3389/fmicb.2021.678290
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author Wang, Jun-Tao
Shen, Ju-Pei
Zhang, Li-Mei
Singh, Brajesh K.
Delgado-Baquerizo, Manuel
Hu, Hang-Wei
Han, Li-Li
Wei, Wen-Xue
Fang, Yun-Ting
He, Ji-Zheng
author_facet Wang, Jun-Tao
Shen, Ju-Pei
Zhang, Li-Mei
Singh, Brajesh K.
Delgado-Baquerizo, Manuel
Hu, Hang-Wei
Han, Li-Li
Wei, Wen-Xue
Fang, Yun-Ting
He, Ji-Zheng
author_sort Wang, Jun-Tao
collection PubMed
description Fungi regulate nutrient cycling, decomposition, symbiosis, and pathogenicity in cropland soils. However, the relative importance of generalist and specialist taxa in structuring soil fungal community remains largely unresolved. We hypothesized that generalist fungi, which are adaptable to various environmental conditions, could potentially dominate the community and become the basis for fungal coexisting networks in cropping systems. In this study, we identified the generalist and habitat specialist fungi in cropland soils across a 2,200 kms environmental gradient, including three bioclimatic regions (subtropical, warm temperate, and temperate). A few fungal taxa in our database were classified as generalist taxa (~1%). These generalists accounted for >35% of the relative abundance of all fungal populations, and most of them are Ascomycota and potentially pathotrophic. Compared to the specialist taxa (5–17% of all phylotypes in three regions), generalists had a higher degree of connectivity and were often identified as hub within the network. Structural equation modeling provided further evidence that after accounting for spatial and climatic/edaphic factors, generalists had larger contributions to the fungal coexistence pattern than habitat specialists. Taken together, our study provided evidence that generalist taxa are crucial components for fungal community structure. The knowledge of generalists can provide important implication for understanding the ecological preference of fungal groups in cropland systems.
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spelling pubmed-82991052021-07-24 Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems Wang, Jun-Tao Shen, Ju-Pei Zhang, Li-Mei Singh, Brajesh K. Delgado-Baquerizo, Manuel Hu, Hang-Wei Han, Li-Li Wei, Wen-Xue Fang, Yun-Ting He, Ji-Zheng Front Microbiol Microbiology Fungi regulate nutrient cycling, decomposition, symbiosis, and pathogenicity in cropland soils. However, the relative importance of generalist and specialist taxa in structuring soil fungal community remains largely unresolved. We hypothesized that generalist fungi, which are adaptable to various environmental conditions, could potentially dominate the community and become the basis for fungal coexisting networks in cropping systems. In this study, we identified the generalist and habitat specialist fungi in cropland soils across a 2,200 kms environmental gradient, including three bioclimatic regions (subtropical, warm temperate, and temperate). A few fungal taxa in our database were classified as generalist taxa (~1%). These generalists accounted for >35% of the relative abundance of all fungal populations, and most of them are Ascomycota and potentially pathotrophic. Compared to the specialist taxa (5–17% of all phylotypes in three regions), generalists had a higher degree of connectivity and were often identified as hub within the network. Structural equation modeling provided further evidence that after accounting for spatial and climatic/edaphic factors, generalists had larger contributions to the fungal coexistence pattern than habitat specialists. Taken together, our study provided evidence that generalist taxa are crucial components for fungal community structure. The knowledge of generalists can provide important implication for understanding the ecological preference of fungal groups in cropland systems. Frontiers Media S.A. 2021-07-09 /pmc/articles/PMC8299105/ /pubmed/34305842 http://dx.doi.org/10.3389/fmicb.2021.678290 Text en Copyright © 2021 Wang, Shen, Zhang, Singh, Delgado-Baquerizo, Hu, Han, Wei, Fang and He. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Wang, Jun-Tao
Shen, Ju-Pei
Zhang, Li-Mei
Singh, Brajesh K.
Delgado-Baquerizo, Manuel
Hu, Hang-Wei
Han, Li-Li
Wei, Wen-Xue
Fang, Yun-Ting
He, Ji-Zheng
Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems
title Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems
title_full Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems
title_fullStr Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems
title_full_unstemmed Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems
title_short Generalist Taxa Shape Fungal Community Structure in Cropping Ecosystems
title_sort generalist taxa shape fungal community structure in cropping ecosystems
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8299105/
https://www.ncbi.nlm.nih.gov/pubmed/34305842
http://dx.doi.org/10.3389/fmicb.2021.678290
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