Divergent effects of hydrological alteration and nutrient addition on greenhouse gas emissions in the water level fluctuation zone of the Three Gorges Reservoir, China

Water Research, Год журнала: 2021, Номер 201, С. 117308 - 117308

Опубликована: Май 28, 2021

Язык: Английский

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Microdiversity characterizes prevalent phylogenetic clades in the glacier-fed stream microbiome

The ISME Journal, Год журнала: 2021, Номер 16(3), С. 666 - 675

Опубликована: Сен. 15, 2021

Abstract Glacier-fed streams (GFSs) are extreme and rapidly vanishing ecosystems, yet they harbor diverse microbial communities. Although our understanding of the GFS microbiome has recently increased, we do not know which clades ecologically successful in these nor understand potentially underlying mechanisms. Ecologically should be more prevalent across GFSs compared to other clades, reflected as clade-wise distinctly low phylogenetic turnover. However, methods assess such patterns currently missing. Here developed applied a novel analytical framework, “phyloscore analysis”, identify with lower spatial turnover than sediment twenty New Zealand. These constituted up 44% 64% community α-diversity abundance, respectively. Furthermore, both their abundance increased chlorophyll decreased, corroborating ecological success habitats largely devoid primary production. also contained elevated levels putative microdiversity others, could explain high prevalence GFSs. This hitherto unknown may threatened glaciers shrink, urging towards further genomic functional exploration microbiome.

Язык: Английский

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Assembly processes and co-occurrence relationships in the bacterioplankton communities of a large river system

Ecological Indicators, Год журнала: 2021, Номер 126, С. 107643 - 107643

Опубликована: Апрель 1, 2021

The incoming water area of the Central Line Project South-to-North Water Diversion comprises upper reaches Han River in China. Bacterioplankton are important members river ecosystems. However, mechanisms (deterministic or stochastic processes) regulating planktonic bacterial community structure not well understood. Herein, we documented spatiotemporal patterns, assembly processes, and co-occurrence relationships communities its tributaries. Seasonal variations bacterioplankton were clearly observed more obvious than spatial differences. showed a significant distance (dendritic distance) decay pattern during two sampling periods, was stronger spring other season. Network analysis that networks displayed non-random differences topological properties empirical random (average clustering coefficient, average path length, degree) found. Compared to those tributaries, network mainstem had lowest modularity; this may be caused by difference biodiversity between Redundancy revealed pH exhibited effects on both seasons. variation partitioning factors (stochastic contributed explaining environmental In addition, neutral model can also explain large part autumn (R2 = 0.817 0.808, respectively). This study shows seasonal is greatly influenced variation. processes dominantly affect within order effectively manage protect microbial diversity, managers consider only local species but effect regional dispersal.

Язык: Английский

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New insights into cyanobacterial blooms and the response of associated microbial communities in freshwater ecosystems

Environmental Pollution, Год журнала: 2022, Номер 309, С. 119781 - 119781

Опубликована: Июль 13, 2022

Язык: Английский

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Century-Long Homogenization of Algal Communities Is Accelerated by Nutrient Enrichment and Climate Warming in Lakes and Reservoirs of the North Temperate Zone

Environmental Science & Technology, Год журнала: 2022, Номер 56(6), С. 3780 - 3790

Опубликована: Фев. 10, 2022

Anthropogenic pressures can threaten lake and reservoir ecosystems, leading to harmful algal blooms that have become globally widespread. However, patterns of phytoplankton diversity change community assembly over long-term scales remain unknown. Here, we explore biodiversity in eukaryotic (EA) cyanobacterial (CYA) communities a century by sequencing DNA preserved the sediment cores seven lakes reservoirs North Temperate Zone. Comparisons within revealed temporal homogenization mesotrophic lakes, eutrophic last but no systematic losses α-diversity. Temporal EA CYA continued into modern day probably due time-lags related historical legacies, even if go through eutrophication phase followed reoligotrophication phase. Further, was mediated both deterministic stochastic processes, while homogeneous selection played relatively important role recent decades intensified anthropogenic activities climate warming. Overall, these results expand our understanding global effects on succession exhibit different successional trajectories also providing baseline framework assess their potential responses future environmental change.

Язык: Английский

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Microbial community assembly and co-occurrence relationship in sediments of the river-dominated estuary and the adjacent shelf in the wet season

Environmental Pollution, Год журнала: 2022, Номер 308, С. 119572 - 119572

Опубликована: Июнь 2, 2022

Язык: Английский

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Divergent prokaryotic microbial assembly, co-existence patterns and functions in surrounding river sediments of a Cu-polymetallic deposit in Tibet

The Science of The Total Environment, Год журнала: 2022, Номер 851, С. 158192 - 158192

Опубликована: Авг. 19, 2022

Язык: Английский

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Microbial interactions strengthen deterministic processes during community assembly in a subtropical estuary

The Science of The Total Environment, Год журнала: 2023, Номер 906, С. 167499 - 167499

Опубликована: Сен. 30, 2023

Язык: Английский

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Terrestrial dissolved organic matter inputs drive the temporal dynamics of riverine bacterial ecological networks and assembly processes

Water Research, Год журнала: 2023, Номер 249, С. 120955 - 120955

Опубликована: Дек. 1, 2023

Язык: Английский

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The combination of multiple environmental stressors strongly alters microbial community assembly in aquatic ecosystems

Journal of Environmental Management, Год журнала: 2023, Номер 350, С. 119594 - 119594

Опубликована: Ноя. 22, 2023

Язык: Английский

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