Cyanotoxin: A Potential Driver of Microbial Community

Published: Jan. 1, 2025

Cyanobacterial algal blooms (CyanoHABs) are common biological disturbances in freshwater ecosystems that affect microbial community diversity and composition. While extensive research has focused on cyanobacterial blooms, the direct effects of cyanotoxins communities remain less understood. In this study, we investigated impact various an oligotrophic system Quebec, Canada (45.99°N, 74.00°W). Water samples were exposed to different concentrations MC-LR, MC-RR, MC-LF, CYN, both individually combination. Toxin chosen relation World Health Organization (WHO) regulatory thresholds, 1 μg/L as indicative low toxin exposure (drinking water limit) 1000 high (lake threshold). We performed a longitudinal analysis 16S rRNA assess changes composition at 24-hour, 48-hour, 72-hour intervals. Our findings showed significant change alpha beta diversity, highlighting shifts structure response cyanotoxin doses. Conversely, no detected across diverse compositions. then differential identified several ASVs with relative abundance This highlighted potential degrading bacteria, such Paucibacter, Flavobacterium, Ideonella. Overall, our results more associated doses than Understanding how could lakes is essential for better predicting their ecological impacts, especially these increasingly affected by blooms.

Language: Английский

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Comprehensive genomic and transcriptomic analyses of the anaerobic degradation of microcystin in Alcaligenes faecalis D04

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 290, P. 117721 - 117721

Published: Jan. 1, 2025

Language: Английский

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The global research trends and hotspots on phthalate esters (PAEs): A comprehensive visualization and bibliometric analysis (2000-2023)

Environmental Chemistry and Ecotoxicology, Journal Year: 2025, Volume and Issue: 7, P. 381 - 393

Published: Jan. 1, 2025

Language: Английский

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Design and application of a polyacrylamide-grafted gelatin/biochar/Fe3O4 magnetic coagulant for microcystin-LR and turbidity co-removal: A case study with Yangtze River water

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 143349 - 143349

Published: April 1, 2025

Language: Английский

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Laboratory-Simulated Inhibitory Effects of the Floating-Bed Plants on Microcystis aeruginosa and Their Microbial Communities’ Responses to Microcystins

Microorganisms, Journal Year: 2024, Volume and Issue: 12(10), P. 2035 - 2035

Published: Oct. 9, 2024

Three common floating bed plants, Eichhornia crassipes, Pistia stratiotes, and Ipomoea aquatica, were selected in the present study to investigate their inhibitory effects on toxic Microcystis aeruginosa. The results showed that all three types of floating-bed plants could considerably inhibit growth M. aeruginosa effectively remove microcystins (MCs) from water systems, among which, E. crassipes P. stratiotes more effective resisting aeruginosa, removal rate intracellular MCs be up 100%. In addition, roots leaves enriched with a large number demonstrated significant antioxidant responses, as evidenced by increase content catalase (CAT), glutathione peroxidase (GSH-PX), superoxide dismutase (SOD), malondialdehyde (MDA) roots, stems, plants. Furthermore, this also Proteobacteria, Bacteroidota, Myxococcota, Verrucomicrobiota, Actinobacteriota dominated root microorganisms Moreover, variety MC-degrading bacteria, including Sphingomonas, Acinetobacter, Novosphingobium, Pseudomonas, found at genus level, which further provides important basic data for regulation eutrophic bodies MCs.

Language: Английский

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Inhibitory Effects of the Floating-Bed Plants on Microcystis Aeruginosa and Their Microbial Communities Responses to Mcs

Published: Jan. 1, 2024

Language: Английский

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