Low shifts in salinity determined assembly processes and network stability of microeukaryotic plankton communities in a subtropical urban reservoir

Microbiome, Journal Year: 2021, Volume and Issue: 9(1)

Published: June 3, 2021

Abstract Background Freshwater salinization may result in significant changes of microbial community composition and diversity, with implications for ecosystem processes function. Earlier research has revealed the importance large shifts salinity on physiology ecology, whereas studies effects smaller or narrower microeukaryotic inland waters are scarce. Our aim was to unveil assembly mechanisms stability plankton networks at low salinity. Results Here, we analyzed a high-resolution time series data from an urban reservoir subtropical China over 13 consecutive months following one periodic change ranging 0 6.1‰. We found that (1) increase altered led decrease (2) influenced primarily by regulating deterministic-stochastic balance, deterministic becoming more important increased salinity, (3) core subnetwork robustness higher low-salinity levels, while satellite subnetworks had greater medium-/high-salinity levels. results suggest influence rather than successional time, is driving force shaping dynamics. Conclusions findings demonstrate salinities, even small increases sufficient exert selective pressure reduce diversity alter mechanism network stability. provide new insights into ecology impacts microbiotas architecture.

Language: Английский

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Plant developmental stage drives the differentiation in ecological role of the maize microbiome

Microbiome, Journal Year: 2021, Volume and Issue: 9(1)

Published: Aug. 13, 2021

Abstract Background Plants live with diverse microbial communities which profoundly affect multiple facets of host performance, but if and how development impacts the assembly, functions interactions crop microbiomes are poorly understood. Here we examined both bacterial fungal across soils, epiphytic endophytic niches leaf root, plastic fake plant (representing environment-originating microbes) at three developmental stages maize two contrasting sites, further explored potential function phylloplane based on metagenomics. Results Our results suggested that stage had a much stronger influence diversity, composition interkingdom networks in compartments than strongest effect phylloplane. Phylloplane were co-shaped by growth seasonal environmental factors, air (represented plants) as its important source. Further, found more strongly driven deterministic processes early similar pattern was for late stage. Moreover, taxa played role network yield prediction stage, while did so Metagenomic analyses indicated possessed higher functional diversity genes related to nutrient provision enriched N assimilation C degradation Coincidently, abundant beneficial like Actinobacteria, Burkholderiaceae Rhizobiaceae observed saprophytic fungi Conclusions suggest influences microbiome assembly functions, take differentiated ecological different development. This study provides empirical evidence exerting strong selection during These findings have implications future tools manipulate sustainable increase primary productivity.

Language: Английский

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The ecology of the plastisphere: Microbial composition, function, assembly, and network in the freshwater and seawater ecosystems

Water Research, Journal Year: 2021, Volume and Issue: 202, P. 117428 - 117428

Published: July 15, 2021

Language: Английский

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Rare taxa maintain the stability of crop mycobiomes and ecosystem functions

Environmental Microbiology, Journal Year: 2020, Volume and Issue: 23(4), P. 1907 - 1924

Published: Sept. 30, 2020

Plants harbour highly diverse mycobiomes which sustain essential functions for host health and productivity. However, ecological processes that govern the plant-mycobiome assembly, interactions their impact on ecosystem remain poorly known. Here we characterized role community assembly of both abundant rare fungal taxa along soil-plant continuums (rhizosphere, phyllosphere endosphere) in maize-wheat/barley rotation system under different fertilization practices at two contrasting sites. Our results indicate mycobiome is shaped predominantly by compartment niche species rather than environmental factors. Moreover, crop-associated communities are dominated few mainly belonging to Sordariomycetes Dothideomycetes, while majority diversity within represented taxa. For plant compartments, sub-community determined stochastic processes. In contrast, more sensitive selection governed deterministic Furthermore, our demonstrate play an important co-occurrence network functioning like crop yield soil enzyme activities. These significantly advance understanding highlight key sustaining stability functions.

Language: Английский

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Organism body size structures the soil microbial and nematode community assembly at a continental and global scale

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

Published: Dec. 17, 2020

Body size is a key life-history trait that influences community assembly by affecting how ecological processes operate at the organism level. However, extent to which relative of mediate differentially sized soil organisms still unknown. Here, we investigate microorganisms and microfauna using continental-scale sampling effort combined with global-scale meta-analysis. Our results reveal general relationship between body stochastic-deterministic balance operating on assembly. The smallest (bacteria) are relatively more influenced dispersal-based stochastic processes, while larger ones (fungi, protists nematodes) structured selection-based deterministic processes. This study elucidates significant consistent an distinct in mediating their respective assemblages, thus providing better understanding mechanisms supporting biodiversity.

Language: Английский

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The structure and assembly mechanisms of plastisphere microbial community in natural marine environment

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 421, P. 126780 - 126780

Published: July 30, 2021

Language: Английский

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Linking soil fungi to bacterial community assembly in arid ecosystems

iMeta, Journal Year: 2022, Volume and Issue: 1(1)

Published: Feb. 24, 2022

Abstract Revealing the roles of biotic factors in driving community assembly, which is crucial for understanding biodiversity and ecosystem functions, a fundamental but infrequently investigated subject microbial ecology. Here, combining cross‐biome observational study with an experimental microcosm study, we provided evidence to reveal major (i.e., soil fungi cross‐kingdom species associations) determining bacterial biogeography assembly complex terrestrial ecosystems arid regions northwest China. The results showed that fungal richness mediates balance processes communities, stochastic decreased increasing richness. Our further suggest predicted increase aridity conditions due climate change will reduce α‐diversity, particularly desert soils subsurface layer, induce more negative associations. Together, our represents significant advance linking mechanisms underlying biogeographic patterns under land‐use scenarios.

Language: Английский

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From diversity to complexity: Microbial networks in soils

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 169, P. 108604 - 108604

Published: March 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.

Language: Английский

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Linking Bacterial-Fungal Relationships to Microbial Diversity and Soil Nutrient Cycling

mSystems, Journal Year: 2021, Volume and Issue: 6(2)

Published: March 23, 2021

The relationships between soil biodiversity and ecosystem functions are an important yet poorly understood topic in microbial ecology. This study presents exploratory effort to gain predictive understanding of the factors driving diversity potential nutrient cycling complex terrestrial ecosystems.

Language: Английский

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Environmental heterogeneity determines the ecological processes that govern bacterial metacommunity assembly in a floodplain river system

The ISME Journal, Journal Year: 2020, Volume and Issue: 14(12), P. 2951 - 2966

Published: July 27, 2020

Language: Английский

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