Abundant fungi adapt to broader environmental gradients than rare fungi in agricultural fields

Global Change Biology, Journal Year: 2020, Volume and Issue: 26(8), P. 4506 - 4520

Published: April 23, 2020

Abstract Soil communities are intricately linked to ecosystem functioning, and a predictive understanding of how assemble in response environmental change is great ecological importance. Little known about the assembly processes governing abundant rare fungal across agro‐ecosystems, particularly with regard their adaptation. By considering taxa, we tested thresholds phylogenetic signals for preferences complex gradients reflect adaptation, explored factors influencing based on large‐scale soil survey agricultural fields eastern China. We found that taxa exhibited remarkably broader stronger compared taxa. Neutral played key role shaping subcommunity subcommunity. Null model analysis revealed was less clustered phylogenetically governed primarily by dispersal limitation, while homogeneous selection major process available sulfur factor mediating balance between stochastic deterministic both subcommunities, as indicated an increase stochasticity higher concentration. Based macroecological spatial scale datasets, our study potential adaptation identified distinct community fields. These results contribute mechanisms underlying generation maintenance diversity global change.

Language: Английский

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Low shifts in salinity determined assembly processes and network stability of microeukaryotic plankton communities in a subtropical urban reservoir

Microbiome, Journal Year: 2021, Volume and Issue: 9(1)

Published: June 3, 2021

Abstract Background Freshwater salinization may result in significant changes of microbial community composition and diversity, with implications for ecosystem processes function. Earlier research has revealed the importance large shifts salinity on physiology ecology, whereas studies effects smaller or narrower microeukaryotic inland waters are scarce. Our aim was to unveil assembly mechanisms stability plankton networks at low salinity. Results Here, we analyzed a high-resolution time series data from an urban reservoir subtropical China over 13 consecutive months following one periodic change ranging 0 6.1‰. We found that (1) increase altered led decrease (2) influenced primarily by regulating deterministic-stochastic balance, deterministic becoming more important increased salinity, (3) core subnetwork robustness higher low-salinity levels, while satellite subnetworks had greater medium-/high-salinity levels. results suggest influence rather than successional time, is driving force shaping dynamics. Conclusions findings demonstrate salinities, even small increases sufficient exert selective pressure reduce diversity alter mechanism network stability. provide new insights into ecology impacts microbiotas architecture.

Language: Английский

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Soil pH and temperature regulate assembly processes of abundant and rare bacterial communities in agricultural ecosystems

Environmental Microbiology, Journal Year: 2019, Volume and Issue: 22(3), P. 1052 - 1065

Published: Oct. 10, 2019

Summary The factors determining stochastic and deterministic processes that drive microbial community structure, specifically the balance of abundant rare bacterial taxa, remain underexplored. Here we examined biogeographic patterns taxa explored environmental influencing their assembly in agricultural fields across eastern China. More phylogenetic turnover correlating with spatial distance was observed than sub‐communities. Homogeneous selection main process for both sub‐communities; however, sub‐community more tightly clustered phylogenetically sensitive to dispersal limitations sub‐community. Rare rice maize were governed by processes, which showed higher operational taxonomic unit richness. We propose a conceptual paradigm wherein soil pH mean annual temperature mediate sub‐communities respectively. A leads For sub‐community, dominance stochasticity low‐temperature regions indicates weaker niche‐based exclusion arrival evolutionary lineages. These findings suggest are dependent on distinct variables agro‐ecosystems.

Language: Английский

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Soil multitrophic network complexity enhances the link between biodiversity and multifunctionality in agricultural systems

Global Change Biology, Journal Year: 2021, Volume and Issue: 28(1), P. 140 - 153

Published: Oct. 7, 2021

Belowground biodiversity supports multiple ecosystem functions and services that humans rely on. However, there is a dearth of studies exploring the determinants biodiversity-ecosystem function (BEF) relationships, particularly in intensely managed agricultural ecosystems. Here, we reported significant positive relationships between soil organism groups 228 fields, relating to crop yield, nutrient provisioning, element cycling, pathogen control. The were influenced by types organisms phylotypes with larger sizes or at higher trophic levels, for example, invertebrates protist predators, appeared exhibit weaker no BEF when compared those smaller lower archaea, bacteria, fungi, phototrophs. Particularly, highlighted role network complexity, reflected co-occurrence patterns among multitrophic-level organisms, enhancing link functions. Our results represent advance forecasting impacts belowground multitrophic on systems, suggest complexity should be considered key factor productivity sustainability under land-use intensification.

Language: Английский

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Linking Bacterial-Fungal Relationships to Microbial Diversity and Soil Nutrient Cycling

mSystems, Journal Year: 2021, Volume and Issue: 6(2)

Published: March 23, 2021

The relationships between soil biodiversity and ecosystem functions are an important yet poorly understood topic in microbial ecology. This study presents exploratory effort to gain predictive understanding of the factors driving diversity potential nutrient cycling complex terrestrial ecosystems.

Language: Английский

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Assembly of abundant and rare bacterial and fungal sub-communities in different soil aggregate sizes in an apple orchard treated with cover crop and fertilizer

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 156, P. 108222 - 108222

Published: March 20, 2021

Language: Английский

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High Salinity Inhibits Soil Bacterial Community Mediating Nitrogen Cycling

Applied and Environmental Microbiology, Journal Year: 2021, Volume and Issue: 87(21)

Published: Aug. 18, 2021

Revealing the response of soil bacterial community to external environmental disturbances is an important but poorly understood topic in microbial ecology. In this study, we evaluated effect high salinity on composition and key biogeochemical processes salinized agricultural soils (0.22 19.98 dS m −1 ).

Language: Английский

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Core phylotypes enhance the resistance of soil microbiome to environmental changes to maintain multifunctionality in agricultural ecosystems

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(22), P. 6653 - 6664

Published: Aug. 13, 2022

Agricultural ecosystems are facing increasing environmental changes. Revealing ecological stability of belowground organisms is key to developing management strategies that maintain agricultural ecosystem services in a changing world. Here, we collected soils from adjacent pairs maize and rice fields along large spatial scale across Eastern Southeast China investigate the importance core microbiota as predictor resistance soil microbiome (e.g. bacteria, fungi protist) climate changes nutrient fertilization, their effect on multiple functions, representing for crop growth health agro-ecosystems. Soil exhibited stronger than soils, by considering aspects index, example, community, phylogenetic conservation network complexity. Community showed geographic pattern, with higher at lower latitudes, suggesting warmer regions. Particularly, highlighted role phylotypes enhancing community microbiome, which was essential maintenance multifunctionality ecosystems. Our results represent significant advance linking therefore forecasting agro-ecosystems dynamics response ongoing These suggest should be considered factor sustainability productivity under global change scenarios.

Language: Английский

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Ecological insights into soil health according to the genomic traits and environment-wide associations of bacteria in agricultural soils

ISME Communications, Journal Year: 2023, Volume and Issue: 3(1)

Published: Jan. 9, 2023

Soil microbiomes are sensitive to current and previous soil conditions, bacterial 'bioindicators' of biological, physical, chemical properties have considerable potential for health assessment. However, the lack ecological or physiological information most microorganisms limits our ability interpret associations bioindicators and, thus, their utility guiding management. We identified tillage intensity twelve used rate using a 16S rRNA gene-based survey farmland across North America. then inferred genomic traits evaluated environment-wide (EWAS) with respect agricultural management practice, disturbance, plant 89 studies from agroecosystems. Most were either positively correlated biological (e.g., organic matter) negatively physical properties. Higher ratings corresponded smaller genome size higher coding density, while lower larger genomes rrn copy number. Community-weighted explained variation in ratings. EWAS linked prominent impacts environmental disturbances. Our findings provide insights into relevant management, illustrating tight coupling microbiome function.

Language: Английский

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Rare microbial communities drive ecosystem multifunctionality in acidic soils of southern China

Applied Soil Ecology, Journal Year: 2023, Volume and Issue: 189, P. 104895 - 104895

Published: April 7, 2023

Language: Английский

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