Soil microbial diversity–biomass relationships are driven by soil carbon content across global biomes

The ISME Journal, Год журнала: 2021, Номер 15(7), С. 2081 - 2091

Опубликована: Фев. 9, 2021

Abstract The relationship between biodiversity and biomass has been a long standing debate in ecology. Soil are essential drivers of ecosystem functions. However, unlike plant communities, little is known about how the diversity soil microbial communities interlinked across globally distributed biomes, variations this influence function. To fill knowledge gap, we conducted field survey global with contrasting vegetation climate types. We show that carbon (C) content associated to diversity–biomass ratio soils biomes. This provides an integrative index identify those locations on Earth wherein much higher compared vice versa. diversity-to-biomass peaks arid environments low C content, very C-rich cold environments. Our study further advances reductions land use intensification change could cause dramatic shifts diversity-biomass ratio, potential consequences for broad processes.

Язык: Английский

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Soil plastispheres as hotspots of antibiotic resistance genes and potential pathogens

The ISME Journal, Год журнала: 2021, Номер 16(2), С. 521 - 532

Опубликована: Авг. 28, 2021

Abstract In the Anthropocene, increasing pervasive plastic pollution is creating a new environmental compartment, plastisphere. How plastisphere affects microbial communities and antibiotic resistance genes (ARGs) an issue of global concern. Although this has been studied in aquatic ecosystems, our understanding microbiota soil ecosystems remains poor. Here, we investigated ARGs four types microplastics (MPs) from diverse environments, revealed effects manure, temperature, moisture on them. Our results showed that MPs select for plastisphere, these are involved metabolic pathways, indicating they could drive ecological processes ecosystem. The relationship within bacterial zero-radius operational taxonomic units (zOTUs) was predominantly positive, neutral appeared to dominate community assembly. However, deterministic were more important explaining variance plastispheres. A range potential pathogens detected which enriched compared but varied across types. We further found addition manure elevation temperature all enhance plastispheres, increase with moisture. These suggested plastispheres habitats increased pathogen abundance spatially co-located under change. findings provided insights into ecology microbiome resistome

Язык: Английский

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Co-occurrence networks reveal more complexity than community composition in resistance and resilience of microbial communities

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Июль 5, 2022

Plant response to drought stress involves fungi and bacteria that live on in plants the rhizosphere, yet stability of these myco- micro-biomes remains poorly understood. We investigate resistance resilience an agricultural system using both community composition microbial associations. Here we show tests fundamental hypotheses fungi, as compared bacteria, are (i) more resistant but (ii) less resilient when rewetting relieves stress, found robust support at level composition. Results were complex all-correlations co-occurrence networks. In general, disrupts networks based significant positive correlations among between fungi. Surprisingly, functional guilds rhizosphere leaf strengthened by drought, same was seen for involving arbuscular mycorrhizal rhizosphere. also gradient hypothesis because increased relative frequency correlations.

Язык: Английский

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From diversity to complexity: Microbial networks in soils

Soil Biology and Biochemistry, Год журнала: 2022, Номер 169, С. 108604 - 108604

Опубликована: Март 17, 2022

Network analysis has been used for many years in ecological research to analyze organismal associations, example food webs, plant-plant or plant-animal interactions. Although network is widely applied microbial ecology, only recently it entered the realms of soil shown by a rapid rise studies applying co-occurrence communities. While this application offers great potential deeper insights into structure ecosystems, also brings new challenges related specific characteristics datasets and type questions that can be addressed. In Perspectives Paper we assess ecology due small-scale heterogeneity environment nature datasets. We review different approaches construction are commonly discuss their features limitations. Using test dataset communities from two depths forest soil, demonstrate how experimental designs constructing algorithms affect resulting networks, turn may influence conclusions. will reveal assumptions method, methods preparing dataset, definitions thresholds structure. Finally, particular approached analyzing interpreting properties. Targeting these properties meaningful way allow technique not merely descriptive, but hypothesis-driven research. Analysing networks soils opens window better understanding complexity However, approach unfortunately often draw conclusions which far beyond scientific evidence provide, damaged its reputation analysis. Paper, would like sharpen view real soils, at same time raise awareness regarding limitations ways misused misinterpreted.

Язык: Английский

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Polyethylene microplastics alter soil microbial community assembly and ecosystem multifunctionality

Environment International, Год журнала: 2023, Номер 183, С. 108360 - 108360

Опубликована: Ноя. 30, 2023

Although pervasive microplastics (MPs) pollution in terrestrial ecosystems invites increasing concern, impact of MPs on soil microbial community assembly, and ecosystem functions multifunctionality received relatively little attention. Here, we manipulated a mesocosm experiment to investigate how polyethylene (PE MPs; 0, 1%, 5%, w/w) influence plant production, quality, diversity enzymology carbon (C), nitrogen (N) phosphorus (P) cycling, maize–soil continuum. Results showed that PE exerted negligible effect biomass (dry weight). The 5% caused declines the availability water, C P, whereas enhanced pH storage. activity C-cycling enzymes (α/β-1, 4-glucosidase, β-D-cellobiohydrolase) was promoted by 1% MPs, while β-1, 4-glucosidase inhibited MPs. reduced N-cycling (protease urease), increased P-cycling enzyme (alkaline phosphatase). shifted composition, number specialist species, stability networks resistance. altered with concentration decreasing dispersal limitation proportion (from 13.66 9.96%). Overall, improved concentration, α/β-1, urease, protease, ammonium-N content were most important predictors multifunctionality. These results underscore can alter assembly multifunctionality, thus development implement scalable solutions controlling become increasingly imperative sustainable agricultural production.

Язык: Английский

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Vertical environmental gradient drives prokaryotic microbial community assembly and species coexistence in a stratified acid mine drainage lake

Water Research, Год журнала: 2021, Номер 206, С. 117739 - 117739

Опубликована: Окт. 7, 2021

Язык: Английский

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The source, fate and prospect of antibiotic resistance genes in soil: A review

Frontiers in Microbiology, Год журнала: 2022, Номер 13

Опубликована: Сен. 23, 2022

Antibiotic resistance genes (ARGs), environmental pollutants of emerging concern, have posed a potential threat to the public health. Soil is one huge reservoirs and propagation hotspot ARGs. To alleviate risk ARGs, it necessary figure out source fate ARGs in soil. This paper mainly reviewed recent studies on association with microbiome transmission mechanism The compositions abundance can be changed by modulating microbiome, soil physicochemical properties, such as pH moisture. relationships antibiotics, heavy metals, polycyclic aromatic hydrocarbons pesticides were discussed this review. Among various factors mentioned above, microbial community structure, mobile genetic elements, metals relatively more important impact profiles. Moreover, human health could impacted through plants animals. Understanding dynamic changes influencing promotes us develop strategies for mitigating occurrence dissemination reduce risks.

Язык: Английский

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Daqu microbiota adaptability to altered temperature determines the formation of characteristic compounds

International Journal of Food Microbiology, Год журнала: 2022, Номер 385, С. 109995 - 109995

Опубликована: Окт. 26, 2022

Язык: Английский

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Stress-induced metabolic exchanges between complementary bacterial types underly a dynamic mechanism of inter-species stress resistance

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Май 31, 2023

Metabolic cross-feeding plays vital roles in promoting ecological diversity. While some microbes depend on exchanges of essential nutrients for growth, the forces driving extensive needed to support coexistence free-living are poorly understood. Here we characterize bacterial physiology under self-acidification and establish that excretion key metabolites following growth arrest provides a collaborative, inter-species mechanism stress resistance. This collaboration occurs not only between species isolated from same community, but also unrelated with complementary (glycolytic vs. gluconeogenic) modes metabolism. Cultures such communities progress through distinct phases growth-dilution cycles, comprising exponential acidification-triggered arrest, collaborative deacidification, recovery, each phase involving different combinations physiological states individual species. Our findings challenge steady-state view ecosystems commonly portrayed models, offering an alternative dynamical based advantages phases.

Язык: Английский

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Carbohydrate complexity limits microbial growth and reduces the sensitivity of human gut communities to perturbations

Nature Ecology & Evolution, Год журнала: 2023, Номер 7(1), С. 127 - 142

Опубликована: Янв. 5, 2023

Язык: Английский

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