Meta-analysis of the impacts of global change factors on soil microbial diversity and functionality

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: June 17, 2020

Biodiversity on the Earth is changing at an unprecedented rate due to a variety of global change factors (GCFs). However, effects GCFs microbial diversity unclear despite that soil microorganisms play critical role in biogeochemical cycling. Here, we synthesize 1235 GCF observations worldwide and show rare species are more sensitive than common species, while do not always lead reduction diversity. GCFs-induced shifts alpha can be predominately explained by changed pH. In addition, impacts functionality community structure biomass rather Altogether, our findings fundamentally different from previous knowledge for well-studied plant animal communities, crucial policy-making conservation hotspots under changes.

Language: Английский

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Rare microbial taxa as the major drivers of ecosystem multifunctionality in long-term fertilized soils

Soil Biology and Biochemistry, Journal Year: 2019, Volume and Issue: 141, P. 107686 - 107686

Published: Nov. 22, 2019

Language: Английский

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Soil multifunctionality is affected by the soil environment and by microbial community composition and diversity

Soil Biology and Biochemistry, Journal Year: 2019, Volume and Issue: 136, P. 107521 - 107521

Published: June 26, 2019

Microorganisms are critical in mediating carbon (C) and nitrogen (N) cycling processes soils. Yet, it has long been debated whether the underlying biogeochemical cycles affected by composition diversity of soil microbial community or not. The communities can be influenced various environmental factors, which turn known to impact processes. objectives this study were test effects multiple edaphic drivers individually represented as multivariate environment interacting with diversity, concomitantly on functions (i.e. enzyme activities, C N processes). We employed high-throughput sequencing (Illumina MiSeq) analyze bacterial/archaeal fungal targeting 16S rRNA gene ITS1 region soils collected from three land uses (cropland, grassland forest) deriving two bedrock forms (silicate limestone). Based data set we explored single combined variables structure well activities several found that both shaped same most representation exerting stronger than communities, demonstrated (partial) Mantel tests. also similar controls bacterial/archaeal/fungal richness diversity. Soil only directly but not composition. In contrast, significantly related richness/diversity environment. This indicates direct control indirect structuring communities. further highlights importance diversity) important

Language: Английский

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Aridity-driven shift in biodiversity–soil multifunctionality relationships

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Sept. 9, 2021

Relationships between biodiversity and multiple ecosystem functions (that is, multifunctionality) are context-dependent. Both plant soil microbial diversity have been reported to regulate multifunctionality, but how their relative importance varies along environmental gradients remains poorly understood. Here, we relate multifunctionality across 130 dryland sites a 4,000 km aridity gradient in northern China. Our results show strong positive association species richness less arid regions, whereas diversity, particular of fungi, is positively associated with more regions. This shift the relationships or occur at an level ∼0.8, boundary semiarid climates, which predicted advance geographically ∼28% by end current century. study highlights that loss plants microorganisms may especially consequences under low high conditions, respectively, calls for climate-specific conservation strategies mitigate effects aridification.

Language: Английский

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Understanding microbial community dynamics to improve optimal microbiome selection

Microbiome, Journal Year: 2019, Volume and Issue: 7(1)

Published: June 3, 2019

Artificial selection of microbial communities that perform better at a desired process has seduced scientists for over decade, but the method not been systematically optimised nor mechanisms behind its success, or failure, determined. Microbial are highly dynamic and, hence, go through distinct and rapid stages community succession, consequent effect this may have on artificially selected is unknown. Using chitin as case study, we successfully with enhanced chitinase activities found continuous optimisation incubation times between selective transfers was utmost importance. The analysis composition entire revealed fundamental aspects in ecology: when were optimal, system dominated by Gammaproteobacteria (i.e. main bearers enzymes drivers degradation), before being succeeded cheating, cross-feeding grazing organisms. microbiomes to enhance widely used, though success selecting appears require optimal order avoid loss trait consequence an inevitable succession. A comprehensive understanding dynamics will improve future studies.

Language: Английский

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A closer look at the functions behind ecosystem multifunctionality: A review

Journal of Ecology, Journal Year: 2020, Volume and Issue: 109(2), P. 600 - 613

Published: Oct. 6, 2020

Abstract In recent years there has been an upsurge of studies on ecosystem multifunctionality (EMF), or the ability ecosystems to simultaneously provide multiple functions and/or services. The concept EMF itself, analytical approaches used calculate it, and its implications depending spatial scale field study have discussed in detail. However, date little dialogue concerning basis studies: what should not be considered appropriate measures for functions. To begin this discussion, we performed in‐depth review across four major terrestrial (agroecosystems, drylands, forests grasslands) by analysing 82 studies, which together assessed 775 from a variety greenhouse experiments globe. number analysed varied two per found large differences distribution types service categories. Furthermore, was explanation why certain variables were included calculation how they relate functioning. Synthesis . Based literature analysis, it is clear that no general agreement regarding measurements ecology. address issue, propose guideline determining measuring

Language: Английский

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Microbial Community Resilience across Ecosystems and Multiple Disturbances

Microbiology and Molecular Biology Reviews, Journal Year: 2021, Volume and Issue: 85(2)

Published: March 30, 2021

The ability of ecosystems to withstand disturbances and maintain their functions is being increasingly tested as rates change intensify due climate other human activities. Microorganisms are crucial players underpinning ecosystem functions, the recovery microbial communities from therefore a key part complex processes determining fate functioning. However, despite global environmental consisting numerous pressures, it unclear controversial how multiple affect community stability what consequences this has for functions. This particularly case those or compounded that occur more frequently than normal time. aim review provide an overview mechanisms can govern responses microbes across aquatic terrestrial ecosystems. We first summarize discuss properties influence resilience in soil biomes determine whether there generally applicable principles. Following, we focus on interactions resulting inherent characteristics disturbances, such nature disturbance, timing, chronology lead nonadditive effects modulating response microorganisms.

Language: Английский

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Global ecological predictors of the soil priming effect

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: Aug. 2, 2019

Identifying the global drivers of soil priming is essential to understanding C cycling in terrestrial ecosystems. We conducted a survey soils across 86 globally-distributed locations, spanning wide range climates, biotic communities, and conditions, evaluated apparent effect using 13C-glucose labeling. Here we show that magnitude positive (increase CO2 release through accelerated microbial biomass turnover) was negatively associated with SOC content respiration rates. Our statistical modeling suggests effects tend be negative more mesic sites higher contents. In contrast, single-input labile causes arid locations low results provide solid evidence plays critical role regulating effects, important implications for improvement models under change scenarios.

Language: Английский

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Core Microbiota in Agricultural Soils and Their Potential Associations with Nutrient Cycling

mSystems, Journal Year: 2019, Volume and Issue: 4(2)

Published: March 25, 2019

Revealing the ecological roles of core microbiota in community maintaining and soil nutrient cycling is crucial for understanding ecosystem function, yet there a dearth continental-scale studies on this fundamental topic microbial ecology. Here, we collected 251 samples from adjacent pairs maize rice fields at continental scale eastern China. We revealed major complex connections between bacterial taxa their associations with belowground multinutrient cycling. By identifying habitat preferences microbiota, built atlas mapping spatial distributions bacteria agro-soils, which helps forecast responses agricultural ecosystems to anthropogenic disturbance. The index soils was related α-diversity β-diversity, respectively. Rice exhibited higher diversity closer cooccurrence relationships than soils. In contrast macro- or microecological latitudinal richness patterns natural terrestrial ecosystems, showed high latitudes; however, trend not observed This study provides new perspective distinct biogeographic predict agro-soils thus manage communities better provisioning key services. IMPORTANCE Disentangling an important poorly understood presents exploratory effort gain predictive microbiota. A systematic, survey conducted using (dryland) (wetland) across results indicate that play are associated through preferences. represents significant advance forecasting disturbance services-the ultimate goal

Language: Английский

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Soil pH is the primary factor driving the distribution and function of microorganisms in farmland soils in northeastern China

Annals of Microbiology, Journal Year: 2019, Volume and Issue: 69(13), P. 1461 - 1473

Published: Dec. 1, 2019

Abstract Purpose To understand which environmental factors influence the distribution and ecological functions of bacteria in agricultural soil. Method A broad range farmland soils was sampled from 206 locations Jilin province, China. We used 16S rRNA gene-based Illumina HiSeq sequencing to estimated soil bacterial community structure functions. Result The dominant taxa terms abundance were found be, Actinobacteria, Acidobacteria, Gemmatimonadetes, Chloroflexi, Proteobacteria. Bacterial communities dominantly affected by pH, whereas organic carbon did not have a significant on communities. Soil pH significantly positively correlated with operational taxonomic unit α-diversity (P<0.05) spatially rather than nutrients. using FAPROTAX, relative anaerobic aerobic chemoheterotrophs, nitrifying 27.66%, 26.14%, 6.87%, respectively, total community. Generally, results indicate that is more important nutrients shaping soils, including their biogeographic distribution.

Language: Английский

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