Chemosphere, Год журнала: 2024, Номер 359, С. 142149 - 142149
Опубликована: Апрель 27, 2024
Язык: Английский
Toxicon, Год журнала: 2025, Номер unknown, С. 108364 - 108364
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Chemosphere, Год журнала: 2024, Номер 352, С. 141287 - 141287
Опубликована: Янв. 23, 2024
Язык: Английский
Процитировано
3
Scientific Reports, Год журнала: 2024, Номер 14(1)
Опубликована: Фев. 19, 2024
Abstract The effect of hydrodynamic mixing on controlling Microcystis blooms or changing the algal community to diatom dominance has been widely studied; however, effects colonial biomass development are poorly known. Here, in order study changes under continuous aeration mixing, an experiment was carried out a greenhouse with factors varying and inorganic nitrogen phosphorus enrichment summer. There were three chlorophyll (Chl- ) levels six treatments: low Chl- level 68.4 μg L -1 (treatments L, L-E), medium 468.7 M, M-E), high 924.1 H, H-E). Treatments L-E, M-E H-E enriched same nutrients. During 30 days, concentration decreased, Nitzschia palea cells appeared all treatments, which became dominant treatments M-E, H H-E, highest 9.41 ± 1.96 mg treatment day 30. rank from (L = L-E) < (M M-E) ( P 0.05). In addition, aggregates attached colonies treatments. results showed that initial affected shift dominance. However, beneficial for increase alone. may be caused by light conditions as well nutrients released decay. Moreover, aerobic condition maintained mucilaginous sheath support growth aggregation. This found first time could aggregates. It provided method control manipulate through proper colonies. diatoms would provide more quality food organisms aquaculture material cycling energy flowing web dynamics.
Язык: Английский
Процитировано
3
Journal of Hazardous Materials, Год журнала: 2024, Номер 480, С. 136057 - 136057
Опубликована: Окт. 4, 2024
Язык: Английский
Процитировано
3
The Science of The Total Environment, Год журнала: 2023, Номер 908, С. 168079 - 168079
Опубликована: Окт. 30, 2023
Язык: Английский
Процитировано
8
Ecotoxicology and Environmental Safety, Год журнала: 2023, Номер 267, С. 115620 - 115620
Опубликована: Окт. 21, 2023
Aquatic ecosystems are heavily affected by microplastics (MPs), and its impacts on aquatic life have received extensive attention. However, it is still unclear how biodegradable MPs influence the growth competition of phytoplankton. In this study, response dynamics, alternation in algal cell morphology toxin-producing capability, changes extracellular process Microcystis aeruginosa (M. aeruginosa) Scenedesmus obliquus (S. obliquus) were systematically studied monoculture co-culture conditions with without presence polylactic acid (PLA-MPs). The results indicated that although loss integrity was observed, PLA-MPs addition (50 mg/L) caused a 1.40- 1.36-fold increase densities M. S. systems, respectively. This suggests more favored aeruginosa. effect manifested conditions, because degradation provided additional inorganic carbon experimental systems benefited both obliquus. Meanwhile, synthesis microcystins from toxic substantially reduced upon exposure, which competitive advantage over Thus; density showed 1.15- 1.88-folds increasing compared to addition. interaction between algae weakened obliquus, but their outcomes remained unchanged. new insights into understanding potential ecological risks plastics ecosystems.
Язык: Английский
Процитировано
7
Toxins, Год журнала: 2024, Номер 16(3), С. 145 - 145
Опубликована: Март 13, 2024
Microcystin-LR (MC-LR) is a secondary metabolite produced by cyanobacteria, globally renowned for its potent hepatotoxicity. However, an increasing body of research suggests that it also exhibits pronounced neurotoxicity. PP2A fundamental intracellular phosphatase plays pivotal role in cell development and survival. Although extensive has focused on the binding MC-LR to C subunit PP2A, few studies have explored key amino acid sites can prevent PP2A-C. Due advantages Caenorhabditis elegans (C. elegans), such as ease genetic editing short lifespan, we exposed nematodes manner simulated natural exposure conditions based concentrations water bodies (immersion exposure). Our findings demonstrate exerts comprehensive toxicity nematodes, including reducing impairing reproductive capabilities, diminishing sensory functions. Notably, first time, observed neurotoxic effects persist up F3 generation, highlighting significant threat poses biological populations environments. Furthermore, identified two (L252 C278) PP2A-C through mutations prevented without affecting activity. This discovery was robustly validated behavioral neuronal calcium imaging using nematodes. In conclusion, crucial could from PP2A-C, which holds great significance future detoxification drugs.
Язык: Английский
Процитировано
2
bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown
Опубликована: Апрель 20, 2024
Abstract Understanding processes that can produce adaptive phenotypic shifts in response to rapid environmental change is critical reducing biodiversity loss. The ubiquity of environmentally induced epigenetic marks has led speculation inheritance could potentially enhance population persistence change. Yet, the magnitude and fitness consequences carried beyond maternal are largely unknown. Here, we tested how transgenerational (TEI) shapes Daphnia clones stressor Microcystis . We split individuals from each eight genotypes into exposure control treatments (F0 generation) tracked their descendants F3 generation. found reduced rates survival individual growth no consistent effect on offspring production. Increase trait variance relative F0 generations suggests potential for heritable bet hedging driven by TEI, which impact dynamics. Our findings counter working hypothesis TEI a generally mechanism likely prevent extinction populations inhabiting rapidly changing environments. One sentence summary Transgenerational exposed revealed negative effects rates, challenging hypotheses general selective advantage.
Язык: Английский
Процитировано
2
Applied Microbiology and Biotechnology, Год журнала: 2024, Номер 108(1)
Опубликована: Сен. 16, 2024
Cyanobacterial harmful algal blooms, particularly those dominated by Microcystis, pose significant ecological and health risks worldwide. This review provides an overview of the latest advances in biotechnological approaches for mitigating Microcystis focusing on cyanobactericidal bacteria, fungi, eukaryotic microalgae, zooplankton, aquatic plants, cyanophages. Recently, promising results have been obtained using bacteria: not through inoculation cultured but rather nurturing already present periphyton or biofilms plants. Fungi microalgae also exhibit algicidal properties; however, their practical applications still face challenges. Zooplankton grazing can improve water quality, hurdles exist because colonial form toxin production Microcystis. Aquatic plants control blooms allelopathy nutrient absorption. Although cyanophages hold promise control, strain-specificity hinders widespread use. Despite successful laboratory validation, field biological methods are limited. Future research should leverage advanced molecular bioinformatic techniques to understand microbial interactions during offer insights into innovative strategies. progress, efficacy under conditions requires further verification, emphasizing importance integrating multi-meta-omics with address challenges posed blooms. KEY POINTS: • A diverse range is presented suppressing Efficacy experiments needs be proved applications. Multi-meta-omics novel dynamics interactions.
Язык: Английский
Процитировано
2
Toxins, Год журнала: 2024, Номер 16(11), С. 457 - 457
Опубликована: Окт. 25, 2024
Toxigenic cyanobacteria and microcystins in the oligotrophic pelagic zone mesotrophic bay of Lake Onego-the second largest lake Europe-were found for first time. Microscopic analysis revealed that
Язык: Английский
Процитировано
2