Resource aromaticity affects bacterial community successions in response to different sources of dissolved organic matter

Water Research, Journal Year: 2020, Volume and Issue: 190, P. 116776 - 116776

Published: Dec. 23, 2020

Language: Английский

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Environmental adaptation is stronger for abundant rather than rare microorganisms in wetland soils from the Qinghai‐Tibet Plateau

Molecular Ecology, Journal Year: 2021, Volume and Issue: 30(10), P. 2390 - 2403

Published: March 14, 2021

Disentangling the biogeographic patterns of rare and abundant microbes is essential in order to understand generation maintenance microbial diversity with respect functions they provide. However, little known about ecological assembly processes environmental adaptation across large spatial-scale wetlands. Using Illumina sequencing multiple statistical analyses, we characterized taxonomic phylogenetic bacteria fungi Qinghai-Tibet Plateau wetland soils. Abundant taxa exhibited broader thresholds stronger signals for traits than ones. By contrast, showed higher sensitivity changes closer clustering The null model analysis revealed that dispersal limitation belonging stochastic process dominated community assemblies bacteria, fungi, while variable selection deterministic governed bacteria. Neutral variation partitioning further confirmed were less environmentally constrained. Soil ammonia nitrogen was crucial factor mediating balance between stochasticity determinism both microbes. may have better potential are dispersed by Our findings extend knowledge ongoing change could facilitate prediction biodiversity loss caused probably climate human activity

Language: Английский

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Microbial metabolism and necromass mediated fertilization effect on soil organic carbon after long-term community incubation in different climates

The ISME Journal, Journal Year: 2021, Volume and Issue: 15(9), P. 2561 - 2573

Published: March 12, 2021

Language: Английский

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Microbial community succession in soils under long-term heavy metal stress from community diversity-structure to KEGG function pathways

Environmental Research, Journal Year: 2022, Volume and Issue: 214, P. 113822 - 113822

Published: July 5, 2022

Language: Английский

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GWAS, MWAS and mGWAS provide insights into precision agriculture based on genotype-dependent microbial effects in foxtail millet

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Oct. 7, 2022

Abstract Genetic and environmental factors collectively determine plant growth yield. In the past 20 years, genome-wide association studies (GWAS) have been conducted on crops to decipher genetic loci that contribute yield, however, genotype appears be insufficient explain trait variations. Here, we unravel associations between genotypic, phenotypic, rhizoplane microbiota variables of 827 foxtail millet cultivars by an integrated GWAS, microbiome-wide (MWAS) microbiome (mGWAS) method. We identify 257 microbial biomarkers associated with six key agronomic traits validated microbial-mediated effects using marker strains isolated from field. The composition is mainly driven variations in genes related immunity, metabolites, hormone signaling nutrient uptake. Among these, host immune gene FLS2 transcription factor bHLH35 are widely taxa rhizoplane. further uncover a genotype-microbiota interaction network contributes phenotype plasticity. dependent genotype, suggesting precision management could used engineer high-yielding agriculture systems.

Language: Английский

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The microbial rare biosphere: current concepts, methods and ecological principles

FEMS Microbiology Ecology, Journal Year: 2020, Volume and Issue: 97(1)

Published: Nov. 6, 2020

ABSTRACT Our ability to describe the highly diverse pool of low abundance populations present in natural microbial communities is increasing at an unprecedented pace. Yet we currently lack integrative view key taxa, functions and metabolic activity which make-up this communal pool, usually referred as ‘rare biosphere’, across domains life. In context, review examines rare biosphere its broader sense, providing historical perspective on representative studies enabled bridge concept from macroecology ecology. It then addresses our current knowledge prokaryotic biosphere, covers emerging insights into ecology, taxonomy evolution microeukaryotic, viral host-associated communities. We also recent methodological advances provide a synthetic overview how fits different conceptual models used explain community assembly mechanisms, composition function.

Language: Английский

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High stability and metabolic capacity of bacterial community promote the rapid reduction of easily decomposing carbon in soil

Communications Biology, Journal Year: 2021, Volume and Issue: 4(1)

Published: Dec. 8, 2021

Abstract Irreversible climate change alters the decomposition and sequestration of soil carbon (C). However, stability C components in soils with different initial organic matter contents its relationship response major decomposers to warming are still unclear. In this study, we translocated Mollisols a gradient (OM) (2%–9%) from situ cold region five warmer climatic regions simulate change. Soil C-rich (OM >5%) was more vulnerable translocation than that C-poor ≤ 5%), loss functional groups like O -alkyl, -aryl carboxyl C. Variations microbial β diversity latitude, temperature precipitation indicated contained resistant bacterial communities sensitive fungal soils, which led strong metabolism high utilization ability community warming. Our results suggest higher sensitivity content is related metabolic capacity decomposers, important for predicting soil-climate feedback.

Language: Английский

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Distinct Responses of Rare and Abundant Microbial Taxa to In Situ Chemical Stabilization of Cadmium-Contaminated Soil

mSystems, Journal Year: 2021, Volume and Issue: 6(5)

Published: Oct. 12, 2021

Soil microorganisms, which intricately link to ecosystem functions, are pivotal for the ecological restoration of heavy metal-contaminated soil. Despite importance rare and abundant microbial taxa in maintaining soil function, taxonomic functional changes communities during situ chemical stabilization cadmium (Cd)-contaminated their contributions functions remain elusive. Here, a 3-year field experiment was conducted assess effects five amendments (CaCO3 as well biochar rice straw, individually or combination with CaCO3) on communities. The bacterial community exhibited narrower niche breadth pH Cd speciation than more sensitive environmental altered by different amendments. However, had comparable impacts fungal assemblies were dominated variable selection stochastic processes (dispersal limitation undominated processes), respectively, while both governed dispersal limitation. Changes pH, speciation, organic matter (SOM) may play essential roles assembly taxa. Furthermore, restored multifunctionality closely related recovery specific keystone species, especially (Gemmatimonadaceae Haliangiaceae) (Ascomycota). Together, our results highlight distinct responses linkage multifunctionality. IMPORTANCE Understanding species is crucial remediation metal-polluted Our study assessed efficiencies commonly used emphasized relative We found great discrepancies composition, assembly, breadth, between Cd-contaminated Application triggered key highly highlighted underpinning process.

Language: Английский

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Distinct Community Assembly Processes of Abundant and Rare Soil Bacteria in Coastal Wetlands along an Inundation Gradient

mSystems, Journal Year: 2020, Volume and Issue: 5(6)

Published: Dec. 21, 2020

Coastal wetlands are one of the important ecosystems that play a crucial role in regulation climate change. Rare taxa (RT) exist habitat along with abundant (AT).

Language: Английский

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Identifying the Biogeographic Patterns of Rare and Abundant Bacterial Communities Using Different Primer Sets on the Loess Plateau

Microorganisms, Journal Year: 2021, Volume and Issue: 9(1), P. 139 - 139

Published: Jan. 9, 2021

High-throughput sequencing is commonly used to study soil microbial communities. However, different primers targeting 16S rRNA hypervariable regions often generate communities and result in values of diversity community structure. This determined the consequences using two bacterial (338f/806r, V3–V4 region, 520f/802r, V4 region) assess soils land uses along a latitudinal gradient. The results showed that variations were more evident based on former pair. statistical use had no significant impact when primer pair 520f/802r was used. In contrast, 338f/806r used, cropland orchard significantly higher operational taxonomic units (OTUs) Shannon index than those shrubland grassland soils. Similarly, generated by impacted mean annual precipitation, total phosphorus (TP), nitrogen (TN), available (AVP), while correlations with most these environmental factors. Multiple regression models indicated pH organic carbon (SOC) shaped structure Loess Plateau regardless what Climatic conditions mainly affected rare bacteria. Abundant bacteria are sensitive changes. Very little variation explained factors or geographic distance, suggesting unpredictable. distributions abundant taxa

Language: Английский

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