A quantitative synthesis of soil microbial effects on plant species coexistence

Proceedings of the National Academy of Sciences, Journal Year: 2022, Volume and Issue: 119(22)

Published: May 23, 2022

Significance Understanding the processes that maintain plant diversity is a key goal in ecology. Many previous studies have shown soil microbes can generate stabilizing or destabilizing feedback loops drive either species coexistence monodominance. However, theory shows microbial controls over also arise through microbially mediated competitive imbalances, which been largely neglected. Using data from 50 studies, we found affect dynamics primarily by generating fitness differences rather than feedbacks. Consequently, absence of other asymmetries among plants, are predicted to exclusion more coexistence. These results underscore need for measuring when evaluating

Language: Английский

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Dilution of specialist pathogens drives productivity benefits from diversity in plant mixtures

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Dec. 18, 2023

Productivity benefits from diversity can arise when compatible pathogen hosts are buffered by unrelated neighbors, diluting impacts. However, the generality of dilution has been controversial and rarely tested within biodiversity manipulations. Here, we test whether soil generates diversity- productivity relationships using a field biodiversity-manipulation experiment, greenhouse assays, feedback modeling. We find that accumulation specialist pathogens in monocultures decreases host plant yields predicts gains derived diversity. Pathogen specialization strength negative between species assays. These feedbacks significantly predict overyielding measured following year. This relationship strengthens accounting for expected mixtures. Using model, corroborate drives overyielding. Combined empirical theoretical evidence indicate suggests risk losing may be highest where environmental change decouples plant-microbe interactions.

Language: Английский

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The Chinese medicinal plants rhizosphere: Metabolites, microorganisms, and interaction

Rhizosphere, Journal Year: 2022, Volume and Issue: 22, P. 100540 - 100540

Published: May 27, 2022

Language: Английский

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Arbuscular mycorrhizal fungi equalize differences in plant fitness and facilitate plant species coexistence through niche differentiation

Nature Ecology & Evolution, Journal Year: 2024, Volume and Issue: 8(11), P. 2058 - 2071

Published: Sept. 9, 2024

Language: Английский

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Microbiome influence on host community dynamics: Conceptual integration of microbiome feedback with classical host–microbe theory

Ecology Letters, Journal Year: 2021, Volume and Issue: 24(12), P. 2796 - 2811

Published: Oct. 4, 2021

Abstract Microbiomes have profound effects on host fitness, yet we struggle to understand the implications for ecology. Microbiome influence ecology has been investigated using two independent frameworks. Classical ecological theory powerfully represents mechanistic interactions predicting environmental dependence of microbiome ecology, but these models are notoriously difficult evaluate empirically. Alternatively, host–microbiome feedback impacts dynamics fitness as simple net that easily amenable experimental evaluation. The framework enabled rapid progress in understanding microbiomes’ plant and can also be applied animal hosts. We conceptually integrate frameworks by deriving expressions terms model parameters. This generates a precise mapping between classic population modelling, thereby merging with tractability, necessary step building predictive

Language: Английский

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Rapid differentiation of soil and root microbiomes in response to plant composition and biodiversity in the field

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

Published: April 19, 2023

Research suggests that microbiomes play a major role in structuring plant communities and influencing ecosystem processes, however, the relative roles strength of change microbial components have not been identified. We measured response fungal, arbuscular mycorrhizal fungal (AMF), bacteria, oomycete composition 4 months after planting field plots varied diversity. Plots were planted using 18 prairie species from three families (Poaceae, Fabaceae, Asteraceae) monoculture, 2, 3, or 6 richness mixtures either within multiple one family. Soil cores collected homogenized per plot DNA extracted soil roots each plot. found all groups responded to design, indicating rapid microbiome composition. Fungal pathogen strongly affected by identified OTUs genera putatively pathogenic fungi increased with family, likely specificity. Bacteria differentiated family but soil. diversity richness, while diversity, as well bacterial roots, decreased. AMF differentiation was detected individual species, richness. saprotroph between plots, providing evidence for decomposer home-field advantage. The observed patterns are consistent composition, which could generate feedbacks on growth field, thereby potentially community structure, influence processes. These findings highlight importance native inoculation restoration.

Language: Английский

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Time‐dependent interaction modification generated from plant–soil feedback

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(5)

Published: May 1, 2024

Abstract Pairwise interactions between species can be modified by other community members, leading to emergent dynamics contingent on composition. Despite the prevalence of such higher‐order interactions, little is known about how they are linked timing and order species' arrival. We generate population from a mechanistic plant–soil feedback model, then apply general theoretical framework show that modification pairwise interaction third plant depends its germination phenology. These time‐dependent modifications emerge concurrent changes in microbe populations strengthened higher overlap plants' associated microbiomes. The this specificity microbiomes further determines coexistence. Our widely applicable mechanisms systems which similar emerge, highlighting need integrate temporal shifts predict natural communities.

Language: Английский

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Setting the stage for plant–soil feedback: Mycorrhizal influences over conspecific recruitment, plant and fungal communities, and coevolution

Journal of Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 28, 2024

Abstract Plant–soil feedback (PSF) plays a central role in determining plant community dynamics, yet our understanding of how different combinations plants and microbes influence PSF remains limited. Plants mycorrhizal types often exhibit contrasting outcomes, influencing recruitment spatial structure. Generalizing across species based on type creates the potential to examine broader effects ecological communities. We review mechanisms contributing outcomes between arbuscular ectomycorrhizal trees. focus fungal traits that differ interact with pathogenic saprotrophic microorganisms nutrient carbon cycling. Synthesis. Building this framework, we propose several new research directions. First, mycorrhizal‐induced changes soils can operate beyond conspecific level, spilling over from abundant onto less ones. This community‐level ‘mycorrhizal spillover’ is hypothesized affect ways are additive interactive density dependence. Second, describe could structure way communities respond global change. Third, discuss they may evolution by altering balance selection pressures genes related pathogen defence mutualism formation.

Language: Английский

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Quantifying soil microbial effects on plant species coexistence: A conceptual synthesis

American Journal of Botany, Journal Year: 2024, Volume and Issue: 111(4)

Published: April 1, 2024

Abstract Soil microorganisms play a critical role in shaping the biodiversity dynamics of plant communities. These microbial effects can arise through direct mediation fitness by pathogens and mutualists, over past two decades, numerous studies have shined spotlight on dynamic feedbacks between plants soil as key determinants species coexistence. Such occur when modify composition community, which turn affects performance. Stimulated theoretical model developed 1990s, bulk empirical evidence for controls coexistence comes from experiments that quantify growth communities were previously conditioned conspecific or heterospecific plants. revealed microbes generate strong negative to positive frequency‐dependent among Even become recognized player determining outcomes, few years seen renewed interest expanding conceptual foundations this field. New results include re‐interpretations metrics classic two‐species models, extensions plant–soil feedback theory multispecies communities, frameworks integrate with processes like intra‐ interspecific competition. Here, I review implications developments interpreting existing highlight proposed analyses designs future enable more complete understanding regulation community dynamics.

Language: Английский

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Plant-soil feedback as a driver of spatial structure in ecosystems

Physics of Life Reviews, Journal Year: 2022, Volume and Issue: 40, P. 6 - 14

Published: Jan. 20, 2022

Language: Английский

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