Increased Prorenin Expression in the Kidneys May Be Involved in the Abnormal Renal Function Caused by Prolonged Environmental Exposure to Microcystin-LR

Toxics, Journal Year: 2024, Volume and Issue: 12(8), P. 547 - 547

Published: July 27, 2024

Toxic algae in eutrophic lakes produce cyanotoxic microcystins. Prior research on the effect of microcystin-LR kidney utilized intraperitoneal injections, which did not reflect natural exposure. Oral has focused renal function and histopathology without examining molecular mechanisms. The present study aimed to evaluate mechanism kidneys via oral administration WKAH/HkmSlc rats over 7 weeks, alongside stimulation proximal tubular cells. Although there were no differences concentrations plasma albumin, blood urea nitrogen, creatinine, are parameters function, between control microcystin-LR-administrated rats,

Language: Английский

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Biophotoelectrochemistry for the treatment of emerging contaminants

Science China Technological Sciences, Journal Year: 2024, Volume and Issue: 67(10), P. 3051 - 3066

Published: Sept. 13, 2024

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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Fate of Saxitoxins in Lake Water: Preliminary Testing of Degradation by Microbes and Sunlight

Water, Journal Year: 2022, Volume and Issue: 14(21), P. 3556 - 3556

Published: Nov. 5, 2022

The cyanobacterial toxin saxitoxin (STX) is mainly associated with the blooms of marine dinoflagellates, but it also produced by several species freshwater cyanobacteria. So far, degradation STX has only been demonstrated physicochemical treatments, in this study, we that natural factors, such as bacterioplankton and sunlight, had capacity for degrading eutrophic Lake Arresø, Denmark. Natural lake could reduce concentrations 41–59%. A similar reduction was shown four analogs. exposure water to sunlight or simulated reduced both intracellular extracellular, dissolved STX. During 4–8 h exposure, 38–52% increased 7–29%. Corresponding values were a 16–45% levels extracellular 10–33%. In particle-free water, two types ambient, 13–17%. light observed damage >94% sxtA gene involved synthesis. This study can modify cell destruction, biosynthesis may be inhibited sunlight.

Language: Английский

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Algicidal Activity and Microcystin-LR Destruction by a Novel Strain Penicillium sp. GF3 Isolated from the Gulf of Finland (Baltic Sea)

Toxins, Journal Year: 2023, Volume and Issue: 15(10), P. 607 - 607

Published: Oct. 10, 2023

The present article focuses on a strain of ascomycete GF3 isolated from water sample taken in the Gulf Finland. Based phylogenetic analysis data, isolate was identified as Penicillium sp. GF3. fungus demonstrates algicidal activity towards cyanobacteria (98–100%). effect green algae did not exceed 50%. exhibits an indirect attack mode by releasing metabolites with and/or lytic into environment. Moreover, is able to degrade MC-LR. After 72 h cultivation, MC-LR content reduced 34.1% and 26.7% at initial 0.1 μg/mL 0.45 concentrations, respectively. high stress resistance toxic provided 1.5-fold activation catalase change glutathione content. Additionally, during biotransformation, MC-LR-GSH conjugate linearized were identified. presence fungi capable degrading MCs revealed for first time. Using Daphnia magna bioindicator, it shown that biotransformation led formation less intermediates. toxicity fungal filtrate five times compared abiotic control. Our findings enhance understanding role have potential bioagents cyanoHABs control detoxify bodies.

Language: Английский

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Relative Contribution of Fungal Communities to Carbon Loss and Humification Process in Algal Sludge Aerobic Composting

Water, Journal Year: 2024, Volume and Issue: 16(8), P. 1084 - 1084

Published: April 10, 2024

Harmful algal blooms in eutrophic lakes pose significant challenges to the aquatic environment. Aerobic composting is an effectively method for processing and reusing dewatered sludge. The fungal communities are main driver of composting. However, their relationship with carbon loss humification process during sludge remains unclear. In this study, succession was investigated via internal transcribed spacer (ITS) rRNA amplicon sequencing analysis. Overall, no differences were observed α-diversity at different stages. composition changed significantly before after compost maturation became more stable maturation. Redundancy analysis showed that correlated physicochemical properties, including humic acid (HA)/fulvic (FA), temperature, pH, acid, microcystins, CO2. co-occurrence network community modules had relationships properties. Structural equation modeling further revealed metabolic or transformation processes may be mainly driven by fungi modules. microcystin degradation, loss, mediated which influenced temperature. Humification not only but also levels. These results show changes interaction properties could represent a useful guide optimizing process.

Language: Английский

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Capture and flocculation of toxic cyanobacteria by amphiphilic peptide dendrimers for mitigating harmful blooms

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151382 - 151382

Published: April 17, 2024

Language: Английский

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<i>Morchella</i> Effectively Removes Microcystins Produced by <i>Microcystis aeruginosa</i>

Microbes and Environments, Journal Year: 2024, Volume and Issue: 39(2), P. n/a - n/a

Published: Jan. 1, 2024

Microcystins (MCs) produced by Microcystis aeruginosa are harmful to animal and human health, there is currently no effective method for their removal. Therefore, the development of biological approaches that inhibit cyanobacteria remove MCs needed. We identified strain MB1, confirmed as Morchella, using morphological mole­cular evolution methods. To assess impact MB1 on M. aeruginosa, we conducted an experiment in which inoculated with Morchella MB1. After co-cultivation 4‍ ‍d, inoculation 0.9696‍ ‍g completely inhibited removed while concurrently removing up 95% MC content. Moreover, within 3‍ ‍d co-cultivation, more than 50% nitrogen phosphorus from solution. techniques removal paramount safeguarding both environment well-being. herein successfully isolated its natural habitat. This effectively also reduced content Most importantly, it exhibited a robust capability eliminate MCs. The present results offer new technical reference mitigating algal blooms.

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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Self-assembled flower-like carbon nanosheets for magnetic solid-phase extraction of microcystins from aquatic organism

Journal of Chromatography A, Journal Year: 2024, Volume and Issue: 1730, P. 465139 - 465139

Published: July 3, 2024

Language: Английский

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