JOURNAL OF HAZARDOUS MATERIALS
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2025
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IF 11.3
Yanyu Zhou,Fucun Liu,Meile Yuan,Xianhua Liu,Qipei Li,Hongwei Zhao
Ocean warming threatens the health of corals globally, and superimposed coastal environmental pollution can result in severe and irreversible coral bleaching. However, the responses of the coral symbiont Symbiodiniaceae to multiple stresses remain largely unknown. This study investigated the response of the coral symbiotic algae Cladocopium sp. to short-term exposure (4 days) to an environmentally relevant concentration (1 μg L −1 ) of the photosystem II (PSII) herbicide prometryn under heat stress (32 ℃) through physiological and omic analyses. These results showed that co-stress affected the photosynthetic efficiency of Cladocopium sp. negatively. Overproduction of reactive oxygen species and subsequent oxidative stress under co-stress activated distinct regulatory pathways in Cladocopium sp. Transcriptomic and proteomic analyses revealed that prometryn exacerbated heat stress-induced photosystem damage and reduced the regulatory capacity of Cladocopium sp. Moreover, co-stress disrupted energy metabolism, and further impaired nitrogen assimilation and nutrient transfer processes, potentially compromising the symbiotic potential between corals and Symbiodiniaceae. In summary, this study offers a valuable insight into understanding the molecular responses of Symbiodiniaceae to thermal and prometryn co-stress. It helps uncover the potential toxicity mechanisms induced by herbicide on coral symbionts in the context of climate change.
研究领域:
海洋生物学
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环境科学
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分子生态学
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产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Yubin Xiang,Jie Li,Ke Wang,Yangfan Zhang,Zhengyu Li,Zhi Li,Xue Lu,Yongming Guo
Nanocomposites have gained extensive interest in improving control efficacy and reducing usage amount of traditional pesticides. In this study, a complex of porous CaCO 3 and tannic acid-iron(III), named as PCC@TA(Fe III ), was fabricated and used as carrier for prometryn (PMT) to obtain a pH-controlled release herbicide of PCC/PMT@TA(Fe III ). Under neutral pH condition, the PMT release rate from PCC/PMT@TA(Fe III ) was merely 19 % while reached about 80 % at pH 5.5 and 8.5. Such pH controlled-release behavior of PMT was probably related to the pH-dependent structure transformation of PCC@TA(Fe III ). The release kinetic mechanism was in conformity with the parabolic diffusion model. Pot experiment result indicated that PCC/PMT@TA(Fe III ) showed a higher control efficacy against Setaria viridis compared with PMT alone. Additionally, PCC@TA(Fe III ) could effectively reduce the leaching loss of PMT in soil and show a good biosafety . Thus, this work provides a novel approach to improve control efficacy and relieve environmental pollution risks of pesticide.
研究领域:
农业科学
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环境科学
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材料科学
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产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2024
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IF 6.3
Chen-Yan Hu,Hao Liu,Ling Xu,Yi-Li Lin,Qiang-Bing Wang,Dan-Dan Huang,Yi-Hui Wu,Zi-Yi Dong,Sheng-Jie Ji
Prometryn is one of the commonly used triazine herbicides and is also widely used for algae removal in aquaculture. This study investigated the degradation kinetics of prometryn via UV/persulfate (PS) oxidation and confirmed its adherence to pseudo-first-order kinetics, with a calculated rate constant (k obs ) of 0.2358 min −1 . The impact of PS concentration, water matrix (including background ions of Cl − and Br − and natural organic matter (NOM)), and solution pH on prometryn degradation were assessed. Results indicated an increase in prometryn degradation with raising concentrations of PS, Cl − , and Br − , especially evident at a PS concentration of 400 μm where complete degradation was achieved. Conversely, degradation decreased with increasing NOM concentration and pH. Radical scavenging experiments affirmed the promotion of prometryn degradation in UV/PS by both HO• and SO 4 − •, with SO 4 − • contributing over 70 % of the total free radical contribution. Evaluation of disinfection by-product (DBP) formation revealed trichloromethane (TCM) as the predominant DBP in non‑bromine water and tribromomethane (TBM) in bromine water. Thus, this study offers a theoretical foundation for UV/PS degradation of triazine herbicides in aqueous environments. The obtained results hold significance for controlling DBPs in subsequent water treatment processes, ensuring the provision of safe drinking water to the public and meeting the sustainable development goal 6.
研究领域:
环境科学
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水处理工程
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产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2024
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IF 10.8
Yanyu Zhou,Qiuli Li,Quan Zhang,Meile Yuan,Xiaoshan Zhu,Yuanchao Li,Qipei Li,Craig A. Downs,Danwei Huang,Loke-Ming Chou,Hongwei Zhao
Global warming has caused the degradation of coral reefs around the world. While stress-tolerant corals have demonstrated the ability to acclimatize to ocean warming, it remains unclear whether they can sustain their thermal resilience when superimposed with other coastal environmental stressors. We report the combined impacts of a photosystem II (PSII) herbicide, prometryn, and ocean warming on the stress-tolerant coral Galaxea fascicularis through physiological and omics analyses. The results demonstrate that the heat-stress-induced inhibition of photosynthetic efficiency in G. fascicularis is exacerbated in the presence of prometryn. Transcriptomics and metabolomics analyses indicate that the prometryn exposure may overwhelm the photosystem repair mechanism in stress-tolerant corals, thereby compromising their capacity for thermal acclimation. Moreover, prometryn might amplify the adverse effects of heat stress on key energy and nutrient metabolism pathways and induce a stronger response to oxidative stress in stress-tolerant corals. The findings indicate that the presence of prometryn at environmentally relevant concentrations would render corals more susceptible to heat stress and exacerbate the breakdown of coral Symbiodiniaceae symbiosis. The present study provides valuable insights into the necessity of prioritizing PSII herbicide pollution reduction in coral reef protection efforts while mitigating the effects of climate change.
研究领域:
海洋生物学
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环境科学
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生态学
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产品关联
DOI
PubMed
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2016
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IF 3.13
Qian Zhao,Feng Shi,Lin Zhu
Humic acid (HA) is a major component of dissolved organic matter , is ubiquitous in the aquatic environment and influences the biological toxicity of organic pollutants. In this study, we investigated the cytochrome P450 1A (CYP 1A) mRNA expression and ethoxyresorufin- O -deethylase (EROD) activity in the gills and liver of zebrafish following exposure to the s -triazine herbicide prometryn with or without HA present. Prometryn induced both CYP 1A mRNA expression and EROD activity. The CYP 1A mRNA expression of zebrafish that were exposed to a combination of prometryn and HA was increased compared to those exposed to prometryn alone. A likely cause for CYP 1A induction is the impact of special components of HA, functioning as aryl hydrocarbon receptor (AHR) agonists. In combination with HA, these increase prometryn levels in tissues. Similar results for EROD activity were evident. In our time course study, CYP 1A mRNA expression reached maximum values during 24 h. This revealed CYP 1A mRNA transcription as a comparatively sensitive toxicity index. In a recovery experiment, we found a faster decrease of CYP 1A mRNA expression to control levels (CK) in gills compared to liver tissue. Following exposure to HA, CYP 1A mRNA expression in liver tissue displayed a faster decrease to CK levels. HA induced enhanced metabolic rates for prometryn. In contrast, recovery regularity of CYP 1A expression in gills was independent of the presence of HA. This result indicates different detoxification mechanisms for HA in liver and gills.
研究领域:
环境毒理学
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水生生物学
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分子生物学
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产品关联
DOI
PubMed
高影响因子
Water
·
2024
·Vol. 16
·期 17
·2531
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IF 3
Zhenjiang Yang,Daoquan Zhao,Jinxing Gu,Ran Wu,Bianzhi Liu,Guangqing Yu,Pengsheng Dong,Xiaocheng Huang,Ming Li,Guoxi Li
To investigate the toxic and environmental effects of prometryn, a laboratory experiment was performed on coexistent fish and algae. The body weight and length ofCarassius carassius,Microcystis aeruginosa(M. aeruginosa) densities and water quality were measured continuously for 92 days. It was observed that fish growth was significantly inhibited by prometryn. This can be partly attributed to the adverse effects of prometryn on the antioxidant system of fish; the activities of superoxide dismutase (SOD) and catalase (CAT) in crucian carp were significantly inhibited by prometryn. The growth ofM. aeruginosawas greatly inhibited by prometryn (p< 0.05), and the adverse effects of prometryn onM. aeruginosaindirectly impacted water qualities. The body weight and length ofCarassius carassiusfirst increased and then tended to be stable with increasing electrical conductivity (EC) values; their quantified relationship was established based on the Gompertz and Logistic equations (R2= 0.920–0.989). Based on the above results, we concluded that the toxic effects of prometryn can impact the antioxidant system of fish and algae which in turn affects their growth performance, and have an indirect impact on water quality. The application of equations made it realizable to obtain a more detailed interpretation of the processes involved in these biological–abiotic interactions.
研究领域:
环境科学
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毒理学
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产品关联
DOI
高影响因子
Water
·
2021
·Vol. 13
·期 10
·1346
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IF 3.103
Zhenjiang Yang,Suiliang Huang,Xiaowen Huang,Xiaofu Liang,Waseem Akram,Zobia Khatoon
Although multiple herbicide exposures are more prospective to occur in water, many previous studies were carried out as single herbicide exposure. To investigate the toxic effect of prometryn on cyanobacteria and water qualities, single and double prometryn exposures (at different growth phases) onMicrocystis aeruginosagrowth and concentrations of nutrients were compared after a 44-day experiment. Results indicated that under single exposure, maximum inhibition rates were 4.7–12.0% higher than those under double exposures. Correspondingly, the maximumMicrocystis aeruginosadensities and growth rates under single exposure were 10.3–21.1% and 19.5–37.7% lower than those under double exposures (p< 0.05), respectively. These findings revealed that repeated prometryn exposures resulted in a reduction in biological effects, because the time of application and the concentration injected during the first application were both significant factors in the biological effects of prometryn. Prometryn exposure scenarios did not have a significant effect on nutrient or nutrient consumption concentrations (p> 0.05). In general, the pattern of nutrient limitation showed a shift from phosphorus to nitrogen limitation. The quantified relationships betweenMicrocystis aeruginosagrowth rates and consumed nutrients were studied. Based on the above findings, we believe that a high-dose and single prometryn exposure is a more effective exposure pattern for limiting cyanobacteria growth.
研究领域:
环境科学
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毒理学
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DOI
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2020
·
IF 4.872
Zhenjiang Yang,Suiliang Huang,Wenwen Kong,Liang Chen,Priakhina Ekaterina,Zobia Khatoon,Muhammad Nabil Ashraf,Waseem Akram
The number of undesirable environmental impacts of fish feed has been reported widely. Although repeated fish feed exposures are more prospective to occur in water, previous studies were mostly conducted as a single exposure of fish feed. In order to fill these gaps, a 40 days incubator experiment was conducted to explore the effects of fish feed addition scenarios during the lag phase with prometryn on both Microcystis aeruginosa growth and concentrations of nutrients. The maximum algae densities in groups of single exposure were 6.0–26.2% and 8.8–74.4% higher than those in groups of double and triple exposures, respectively ( P < 0.05). At the beginning of the experiment, concentrations of nutrients in groups with different feed exposure scenarios were significantly different. The pattern of nutrient limitation showed a transformation from phosphorus limitation to nitrogen limitation generally. Furthermore, the average inhibition rates of algae by prometryn in the case of a single fish feed exposure were 4.6–9.4% lower than those under double exposures, and 22.0–26.8% lower than those under triple exposures ( P < 0.05). In addition, algae growth rates have been developed as a function of concentrations of consumed nutrients ( R 2 = 0.410–0.932). Based on the above results, we concluded that in terms of limiting algae growth multiple low-dosage additions of fish feed were considered as a better addition pattern. By optimizing feed addition scenarios, there is considerable potential to increase the environmental sustainability of aquaculture.
研究领域:
环境科学
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水生生物学
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DOI
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2020
·Vol. 412
·期 3
·621-633
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IF 3.637
Liu Congmin,Wang Yudan,Zhang Lei,Qin Jia′an,Dou Xiaowen,Fu Yanwei,Li Qian,Zhao Xue,Yang Meihua
We produced a prometryn-specific monoclonal antibody and propose a strategy for convenient on-site detection of prometryn residues in herbs for the first time. This strategy has perfect applicability in a complex herbal medicine matrix. The strategy combines a semiquantitative immunochromatographic strip assay with a heterologous indirect competitive ELISA. When there was no matrix interference, the ELISA had a half-maximal inhibitory concentration of 2.6 ng·mL -1 and a limit of detection of 0.2 ng·mL -1 . The immunochromatographic strip assay can be completed within 5 min with a visual limit of detection of 1 ng·mL -1 . Although the sample matrix had different effects on the sensitivity of the antibody, excellent repeatability and accuracy were achieved. The method was successfully applied for the screening and determination of prometryn residue in multiple complex herb samples for the first time, and the results were in good agreement with those obtained by liquid chromatography–tandem mass spectrometry. The proposed strategy is rapid, of high-throughput, and of low cost, and may be a promising choice for on-site detection of prometryn in different kinds of herbs.
Graphical abstract
研究领域:
分析化学
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环境科学
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药理学
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农业科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2025
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IF 4.7
Li Yuxin,Nobuhiro Hanada,Jingshen Wang,Dan Zhang,Zhongoing Liang,Mei Ma,Akira Fujishima,Manabu Kiguchi
Considering the practical application of water treatment with photocatalysts, it is important to investigate the photocatalytic degradation of target molecules in systems where other organic compounds is present. In this study, we investigated the effect of co-dissolved organic compounds on photocatalytic degradation of simetryn, prometryn, metolachlor, and sulfometuron methyl (Herbicides) using magnetic nano-sized TiO 2 -SiO 2 /Fe 3 O 4 photocatalysts. Regarding co-dissolved organic compounds, glucose, sodium dodecyl sulfate (SDS) and glycine were selected as model compounds of sugars, surfactants, and amino acids, by considering the major co-dissolved organic compounds in river water. The photocatalytic herbicide degradation reaction rate was decreased in the presence of co-dissolved organic compounds. Glucose had the greatest impact on the photocatalytic degradation of the herbicide. The inhibitory effect of co-dissolved organic compounds decreased in the order of glucose, SDS, and glycine. The order of effect of co-dissolved organic compounds agreed with the reactivity of each organic compound with • OH. Organic compound having high reactivity to reactive oxygen species would significantly inhibit the photocatalytic degradation of the herbicides.
研究领域:
环境科学
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水处理
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光催化
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环境化学
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纳米材料
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2021
·
IF 7.514
Rong-Rong Zhang,Xin-Tian Gan,Jin-Jin Xu,Qiao-Fen Pan,Hua Liu,Ai-Li Sun,Xi-Zhi Shi,Ze-Ming Zhang
A highly effective molecularly imprinted electrochemiluminescence sensor was constructed for prometryn determination in environmental and biological samples by using perovskite quantum dots coated with a molecularly imprinted silica layer (MIP/CsPbBr 3 -QDs) as the recognition and response element. MIP/CsPbBr 3 -QDs were immobilized on a glassy carbon electrode (GCE) through electropolymerization, and the electrochemiluminescence (ECL) response of MIP/CsPbBr 3 -QDs could be motivated under the condition of H 2 O 2 as co-reactant. ECL signal was selectively quenched with prometryn by hindering electron transfer and directly proportional to the logarithm of prometryn concentration (0.10–500.0 μg/L) with a correlation coefficient of 0.9960. Limits of detection in fish and seawater samples were 0.010 μg/kg and 0.050 μg/L, respectively. Excellent recoveries of 88.0%–106.0% were acquired for fish and seawater samples with a relative standard deviation below 4.2%. The constructed MIECL sensor based on MIP/CsPbBr 3 -QDs showed good stability, accuracy, and precision for sensitive detection of prometryn in aquaculture products and environmental samples.
研究领域:
环境科学
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分析化学
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产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 20
·16790-16797
·
IF 3.289
Qian Zhao,Lin Zhu
Humic acid (HA) is the main component of dissolved organic matter in aquatic ecosystems and affects the bioavailability of contaminants. Prometryn is frequently used to control annual broadleaf and grass weeds and has been widely detected in the aquatic environment. An experiment was conducted to investigate the effect of HA on the chronic toxicity of prometryn in zebrafish. In zebrafish treated with 53.2 μg L−1 prometryn (P), prometryn with 5 mg L−1 HA (P + HA5), or prometryn with 15 mg L−1 HA (P + HA15), catalase (CAT) activity and glutathione (GSH) content in the visceral mass initially increased and then decreased with exposure time. After one day of exposure, malondialdehyde in the visceral mass increased by 58% to 64% in fish treated with prometryn and HA compared to those treated with prometryn alone, however, this difference disappeared during days 10 to 40. Treatment with HA enhanced the bioaccumulation of prometryn by 34% and 40% on day 1 in the P + HA5 and P + HA15 groups, respectively, possibly due to changes in gill membrane permeability. Nevertheless, the opposite result was observed during days 10 to 40, owing to the presence of more excreta and suspended particulate matter resulting in a reduction in the quantity of free dissolved prometryn in the P + HA5 and P + HA15 groups. There were significant correlations between CAT activity and prometryn concentration (0.562**, P < 0.01) and between GSH and prometryn concentration (0.808**, P < 0.01) throughout the first 20 days of the experiment, suggesting a role for these antioxidant systems in the detoxification of prometryn in zebrafish.
研究领域:
环境毒理学
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水生生态学
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生物化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）