Riverine bacterioplankton and phytoplankton assembly along an environmental gradient induced by urbanization DOI
Alain Isabwe, Jun R. Yang, Yongming Wang

et al.

Limnology and Oceanography, Journal Year: 2022, Volume and Issue: 67(9), P. 1943 - 1958

Published: July 8, 2022

Abstract Longitudinal environmental heterogeneity and directionality of the water movement are key features that may exert contrasting forces on riverine plankton assembly. Directionality strengthens dispersal‐driven assembly, but this can be masked by urbanization‐induced along river continuum. In light contrast, we aimed at delineating relative importance assembly processes generating distribution patterns bacterioplankton phytoplankton communities in a draining an urbanizing watershed Southeast China. We applied variation partitioning analysis, neutral community model, quantitative process estimate molecular morphological data obtained over years 2012–2016. Despite relatively short distance between sampling sites (< 20 km), similarity decreased with increasing from upstream pristine site toward downstream urban area, formed clusters roughly corresponded to five habitat patches, predefined based hydrology longitudinal landscape change. These were predominantly driven deterministic stochastic for bacterioplankton, respectively, indicating balance dispersal due fluvial connectivity local selective pressures. Considering global loss fragmentation flow regulation, our findings imply plankton‐based ecological approaches could useful hedge against uncertain future rivers watersheds ecologically sustainable way.

Language: Английский

Stochastic processes shape microeukaryotic community assembly in a subtropical river across wet and dry seasons DOI Creative Commons
Weidong Chen, Kexin Ren, Alain Isabwe

et al.

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

Published: Oct. 22, 2019

Abstract Background The deep mechanisms (deterministic and/or stochastic processes) underlying community assembly are a central challenge in microbial ecology. However, the relative importance of these processes shaping riverine microeukaryotic biogeography is still poorly understood. Here, we compared spatiotemporal and biogeographical patterns using high-throughput sequencing 18S rRNA gene multivariate statistical analyses from subtropical river during wet dry seasons. Results Our results provide first description communities Tingjiang River, largest west Fujian province, southeastern China. showed that microeukaryotes both seasons exhibited contrasting compositions, which might be owing to planktonic having seasonal succession patterns. Further, all components (including total, dominant, always rare, conditionally rare taxa) significant distance-decay pattern seasons, had stronger relationship season, especially for taxa. Although several variables influence on communities, environmental spatial factors minor roles communities. Importantly, were strongly driven by processes, with 89.9%, 88.5%, 89.6% variation explained neutral model wet, dry, respectively. also large fraction across different taxonomic groups levels. Additionally, taxa, above below prediction, ecologically taxonomically distinct groups, interactively structured deterministic processes. Conclusions This study demonstrated sufficient substantial metacommunity hydrographic regimes, thereby providing better understanding patterns, waters.

Language: Английский

Citations

614
Distinct patterns and processes of abundant and rare eukaryotic plankton communities following a reservoir cyanobacterial bloom DOI Creative Commons
Yuanyuan Xue, Huihuang Chen, Jun R. Yang

et al.

The ISME Journal, Journal Year: 2018, Volume and Issue: 12(9), P. 2263 - 2277

Published: June 13, 2018

Abstract Plankton communities normally consist of few abundant and many rare species, yet little is known about the ecological role planktonic eukaryotes. Here we used a 18S ribosomal DNA sequencing approach to investigate dynamics eukaryotes, explore co-occurrence patterns eukaryotic plankton in subtropical reservoir following cyanobacterial bloom event. Our results showed that event significantly altered community composition diversity without affecting plankton. The similarities both subcommunities declined with increase time-lag, but stronger temporal turnover was observed taxa. Further, species explained higher percentage variation than richness. Both deterministic stochastic processes influenced assembly, pattern (e.g., drift) particularly pronounced for Co-occurrence network analysis revealed keystone taxa mainly belonged which may play fundamental roles persistence. Importantly, covariations between non-rare were predominantly positive, implying multispecies cooperation might contribute stability resilience microbial community. Overall, these findings expand current understanding mechanisms interactions underlying changing aquatic ecosystems.

Language: Английский

Citations

511
The biogeography of abundant and rare bacterioplankton in the lakes and reservoirs of China DOI Open Access
Lemian Liu, Jun Yang, Zheng Yu

et al.

The ISME Journal, Journal Year: 2015, Volume and Issue: 9(9), P. 2068 - 2077

Published: March 6, 2015

Language: Английский

Citations

506
Low shifts in salinity determined assembly processes and network stability of microeukaryotic plankton communities in a subtropical urban reservoir DOI Creative Commons
Yuanyuan Mo, Feng Peng, Xiaofei Gao

et al.

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

Citations

349
Diversity and biogeography of bacterial community in the Ili River network varies locally and regionally DOI
Jun Geng, Weihong Zhang, Shuxin Liang

et al.

Water Research, Journal Year: 2024, Volume and Issue: 256, P. 121561 - 121561

Published: April 1, 2024

Language: Английский

Citations

21
Deciphering associations between dissolved organic molecules and bacterial communities in a pelagic marine system DOI Open Access
Helena Osterholz, Gabriel Singer, Bernd Wemheuer

et al.

The ISME Journal, Journal Year: 2016, Volume and Issue: 10(7), P. 1717 - 1730

Published: Jan. 22, 2016

Language: Английский

Citations

160
Community assembly processes underlying phytoplankton and bacterioplankton across a hydrologic change in a human-impacted river DOI
Alain Isabwe, Jun R. Yang, Yongming Wang

et al.

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 630, P. 658 - 667

Published: Feb. 27, 2018

Language: Английский

Citations

146
Community dynamics of free-living and particle-attached bacteria following a reservoir Microcystis bloom DOI
Min Liu, Lemian Liu, Huihuang Chen

et al.

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 660, P. 501 - 511

Published: Dec. 29, 2018

Language: Английский

Citations

132
Effects of water stratification and mixing on microbial community structure in a subtropical deep reservoir DOI Creative Commons
Zheng Yu, Jun Yang, Stefano Amalfitano

et al.

Scientific Reports, Journal Year: 2014, Volume and Issue: 4(1)

Published: July 25, 2014

Microorganisms play pivotal roles within aquatic ecosystems, affecting their structure, functioning and services. However, little is known about the effects of water stratification mixing on microbial community dynamics in subtropical reservoirs. In this study, we explored vertical seasonal patterns diversity Dongzhen Reservoir (southeast China). Quantitative PCR, quantitative RT-PCR 454 pyrosequencing were used for an in-depth characterization bacterial across time (every three months one year) space (five different depths). Our results indicated that thermal oxygen shaped phylogenetic composition communities reservoir. There significant differences physical, chemical microbiological parameters between epilimnion hypolimnion (P < 0.05). The RNA: DNA ratios significantly lower metalimnion but rapidly increased 0.05), suggesting microorganisms more active at low temperatures, dissolved concentrations high TN/TP ratios. Redundancy analysis pathway revealed a complex interplay various environmental biological factors by explaining spatiotemporal variations communities. Adaptive reservoir management strategies should consider carefully mixing, together with distribution microorganisms.

Language: Английский

Citations

129
The antibiotic resistome of free-living and particle-attached bacteria under a reservoir cyanobacterial bloom DOI

Yunyan Guo,

Min Liu, Lemian Liu

et al.

Environment International, Journal Year: 2018, Volume and Issue: 117, P. 107 - 115

Published: May 4, 2018

Language: Английский

Citations

113