Deciphering the role of specialist and generalist plant–microbial interactions as drivers of plant–soil feedback

New Phytologist, Journal Year: 2022, Volume and Issue: 234(6), P. 1929 - 1944

Published: March 26, 2022

Feedback between plants and soil microbial communities can be a powerful driver of vegetation dynamics. Plants elicit changes in the microbiome that either promote or suppress conspecifics at same location, thereby regulating population density-dependence species co-existence. Such effects are often attributed to accumulation host-specific antagonistic beneficial microbiota rhizosphere. However, identity host-specificity taxa involved rarely empirically assessed. Here we review evidence for plant-associated microbes propose specific plant-soil feedbacks also driven by generalists. We outline potential mechanisms which generalist pathogens, mutualists decomposers generate differential on plant hosts synthesize existing predict these as function investments into defence, dispersal. Importantly, capacity drive depends not only traits individual but phylogenetic functional diversity communities. Identifying factors specialization generalism plant-microbial interactions modulate impact performance will advance our understanding underlying feedback ways it contributes

Language: Английский

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Resolving the intricate role of climate in litter decomposition

Nature Ecology & Evolution, Journal Year: 2023, Volume and Issue: 7(2), P. 214 - 223

Published: Jan. 9, 2023

Language: Английский

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Home‐based microbial solution to boost crop growth in low‐fertility soil

New Phytologist, Journal Year: 2023, Volume and Issue: 239(2), P. 752 - 765

Published: May 7, 2023

Soil microbial inoculants are expected to boost crop productivity under climate change and soil degradation. However, the efficiency of native vs commercialized in soils with different fertility impacts on resident communities remain unclear. We investigated differential plant growth responses synthetic community (SynCom) commercial growth-promoting rhizobacteria (PGPR). quantified colonization dynamic niche structure emphasize home-field advantages for inoculants. A SynCom 21 bacterial strains, originating from three typical agricultural soils, conferred a special advantage promoting maize low-fertility conditions. The root : shoot ratio fresh weight increased by 78-121% but only 23-86% PGPRs. This phenotype correlated potential robust positive interactions community. Niche breadth analysis revealed that inoculation induced neutral disturbance structure. even PGPRs failed colonize natural soil, they decreased overlap 59.2-62.4%, exacerbating competition. These results suggest microbes may serve as basis engineering microbiomes support food production widely distributed poor soils.

Language: Английский

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Priority effects transcend scales and disciplines in biology

Trends in Ecology & Evolution, Journal Year: 2024, Volume and Issue: 39(7), P. 677 - 688

Published: March 19, 2024

Language: Английский

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Soil fauna trophic multifunctionality mediates the release of elements from decomposing typhoon‐generated leaf litter

Functional Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Abstract Tropical cyclones (i.e. hurricanes, typhoons) cause large pulse fluxes of leaves that have not undergone senescence green litter) to forest soils, with consequences for biogeochemical cycling. Energy and mineral nutrient concentrations litter are higher than the naturally senesced litter, likely affecting rates decomposition release, as well structure composition detrital food webs, but these effects been quantified. During typhoon ‘Hagubit’, we collected from three common urban greening species, then conducted a 316‐day field experiment evaluate substrate quality affected trophic multifunctionality soil faunal communities ultimately elemental release decomposing litter. Nitrogen (N), phosphorus (P), potassium (K), sodium (Na), calcium (Ca) magnesium (Mg) were released at significantly Aluminium (Al), manganese (Mn) iron (Fe) displayed net accumulation during decomposition, immobilization elements was in Litter chemistry directly elements, its influence stronger compared Detritivores dominated relative predators, omnivores herbivores, distinct fauna functional groups showed positive correlation stimulated elements. These findings suggest typhoons dramatically alter dynamics influences mediated part by changes multifunctionality, which has significant implications magnitude timing availability after disturbances. Read free Plain Language Summary this article on Journal blog.

Language: Английский

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Substrate and climate determine terrestrial litter decomposition

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(7)

Published: Feb. 11, 2025

Litter decomposition is a fundamental biogeochemical process for carbon flux and nutrient cycling in terrestrial ecosystems, yet the global variation rates their covariations with climate substrate are not fully understood. Here, we synthesized dataset of 6,733 independent observations across six continents to illustrate climatic controls over litter decomposition. The average various types ranged from 0.74 4.01 y −1 polar tropics, showing large geographical span. directly explained 36 30% variations rates, carbon-to-nitrogen ratio identified as best predictor. In absence variables, can effectively explain variation, while model’s predictive capacity decreased significantly after was excluded. Our synthesis highlights that constraint on leads predictable global-scale patterns rates. Integrating chemistry parameters should be prioritized parameter optimization Earth system models.

Language: Английский

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Soil salinity, not plant genotype or geographical distance, shapes soil microbial community of a reed wetland at a fine scale in the Yellow River Delta

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 856, P. 159136 - 159136

Published: Sept. 30, 2022

Language: Английский

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Plant-soil feedback: incorporating untested influential drivers and reconciling terminology

Plant and Soil, Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 11, 2023

Abstract Background Plants condition the soil in which they grow, thereby altering performance of subsequent plants growing this soil. This phenomenon, known as plant-soil feedback (PSF), has garnered increasing interest. Experiments are moving from single species pairings glasshouse to community-level field trials. Consequently, our knowledge role PSF plays shaping ecosystem functions advanced. However, gaps remain. Scope Here, we explore intrinsic and extrinsic abiotic biotic drivers such maternal effects, plant functional traits, self-DNA, plant-plant competition, herbivory, interactions between organisms, temperature, drought, flooding, greenhouse gases, (micro)nutrients, plant-litter-soil priority effects. These have begun feature experiments, mechanistic understanding PSF. Nonetheless, many these topics received insufficient coverage determine general principles across larger temporal spatial scales. Further, conflicting terminology excluded studies reviews meta-analyses. We review terms sickness, Janzen-Connell hypothesis, soil-related invasive work, legacies, allelopathy succession that overlap with but generally not named such. Conclusion Holistic experimental designs consider continual reciprocal environment, soil, well unification terminologies necessary if realise full potential for steering processes. compile outstanding questions related research emphasis aforementioned suggest ways incorporate them into future order advance ecology.

Language: Английский

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Home-field advantage effects in litter decomposition is largely linked to litter quality

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 184, P. 109069 - 109069

Published: June 3, 2023

Climate change and associated environmental alterations affect plant communities, potentially decoupling links between plants their soil microbial communities. This may in turn processes like litter decomposition, an important function that controls nutrient carbon cycling as well many other ecosystem processes. Microbial decomposers have been proposed to specialize, being able easier decompose from its ‘home’ community than what is termed the home field advantage (HFA) hypothesis. We report a decomposition experiment including four alpine meadow communities spread along geographical gradient ranged Atlas Morocco Iberian Peninsula Swiss Alps. tested whether rate would differ depending on origin, expecting interactions be at core of responses. expected find HFA all very negative neutral positive our gradient, variation could attributed interaction with traits, linked relative abundance groups performing specific functions. Litter depended quality fungal community, which seemed adapted deal poor-quality, recalcitrant litter, leading HFA. plays role well, indirectly through composition. Phyllosphere competed when interaction, fact blurred results some previous experiments. In summary, there clear systems low-quality requires specialised maximize decomposition. By contrast, high-quality, easy dealt by any decomposer not showing evidence

Language: Английский

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What control home‐field advantage of foliar litter decomposition along an elevational gradient in subtropical forests?

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Language: Английский

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