Spatial Variation in Soil Fungal Communities across Paddy Fields in Subtropical China

mSystems, Journal Year: 2020, Volume and Issue: 5(1)

Published: Jan. 6, 2020

Fungi underpin almost all terrestrial ecosystem functions, yet our understanding of their community ecology lags far behind that other organisms. Here, red paddy soils in subtropical China were collected across a soil depth profile, comprising 0-to-10-cm- (0-10cm-), 10-20cm-, and 20-40cm-deep layers. Using Illumina MiSeq amplicon sequencing the internal transcribed spacer (ITS) region, distance-decay relationships (DDRs), ecological models, fungal assemblages spatial patterns investigated from each depth. We observed significant variation communities found environmental heterogeneity decreased with depth, while showed opposite trend. DDRs occurred only 0-10cm- 10-20cm-deep layers, not 20-40cm layer. Our analyses revealed assembly 0-10cm layer was primarily governed by filtering high dispersal rate, deeper (20-40cm), it limitation minimal filtering. Both controlled 10-20cm layer, playing major role. Results demonstrate decreasing importance an increase structuring shallower to soils. Effectively, "everything is everywhere, but environment selects," although are easily accessible dispersive propagules. This work highlights perceived drivers dependent on sampling suggesting caution required when interpreting diversity samples integrate depths.IMPORTANCE In this work, ITS region used investigate mechanisms different layers fields China, results Therefore, study highlight suggest depths. first focusing relatively large scale, we thus believe great researchers readers microbial ecology, especially biogeography, because can provide guidance future studies biogeography.

Language: Английский

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Soil pH and Organic Carbon Properties Drive Soil Bacterial Communities in Surface and Deep Layers Along an Elevational Gradient

Frontiers in Microbiology, Journal Year: 2021, Volume and Issue: 12

Published: July 30, 2021

Elevational gradients strongly affect the spatial distribution and structure of soil bacterial communities. However, our understanding effects determining factors is still limited, especially in deep layer. Here, we investigated diversity composition communities different layers along a 1,500-m elevational gradient Taibai Mountain. The variables associated with climate conditions, plant communities, properties were analyzed to assess their contributions variations Soil richness α-diversity showed hump-shaped trend elevation both surface layers. In layer, pH was main factor driving pattern diversity, while carbon (C) availability two predictors. Bacterial community differed significantly all Acidobacteria, Delta-proteobacteria, Planctomycetes more abundant lower sites than higher sites; Gemmatimonadetes, Chloroflexi, Beta-proteobacteria sites. AD3 most highest site. co-varied mean annual temperature, precipitation, basal area trees, pH, C availability, fractions. Statistical results that driver fractions contributed variance These indicated changes driven by layers, which are critical for predicting ecosystem functions under future change scenarios.

Language: Английский

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Autochthonous bioaugmentation accelerates phenanthrene degradation in acclimated soil

Environmental Research, Journal Year: 2023, Volume and Issue: 224, P. 115543 - 115543

Published: Feb. 21, 2023

Bioaugmentation helps to obtain a microbiome capable of remediating polycyclic aromatic hydrocarbons (PAHs). In this study, acclimation microorganisms soil supplemented with phenanthrene (PHE) led enrichment PAH-degraders, including those in Actinobacteriota and the genera Streptomyces, Rhodococcus, Nocardioides, Sphingomonas, Mycobacterium. Aqueous (28 °C, pH 6.5) cultures inoculated PHE-acclimated showed high PHE (ca. 50 mg L−1) degradation efficiency. The kinetics aqueous incubations fitted Gompertz equation first-order kinetic equation, respectively. Indigenous adapted their environment, increased capacity degrade PHE. effect co-contaminants pathway intermediates on that improved presence diesel while being hindered by lubricant oil, catechol, salicylic phthalic acid. Our findings provide theoretical practical support for bioremediationof PAHs environment.

Language: Английский

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Depth effects on bacterial community altitudinal patterns and assembly processes in the warm-temperate montane forests of China

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169905 - 169905

Published: Jan. 6, 2024

Language: Английский

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Variations in bacterial and archaeal communities along depth profiles of Alaskan soil cores

Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)

Published: Jan. 5, 2018

Understating the microbial communities and ecological processes that influence their structure in permafrost soils is crucial for predicting consequences of climate change. In this study we investigated bacterial archaeal along depth profiles four soil cores collected across Alaska. The diversity (amplicon sequencing) overall decreased but depth-wise pattern abundances (qPCR) varied by sites. community bacteria archaea displayed site-specific pattern, with a greater role geochemical characteristics rather than depth. particular, found significant positive correlations between methane trapped relative abundance methanogenic genera, indicating strong association activity production subsurface soils. We observed phylogenetic assembly tended to be more clustered surface deeper Analyses turnover among indicated deterministic stochastic was mainly determined properties Overall, our findings emphasize vertical distributions are large extent variation properties.

Language: Английский

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