Ecotoxicology最新文献

筛选
英文 中文
Investigating the toxicity of polylactic acid microplastics on the health and physiology of freshwater fish, Cirrhinus mrigala. 研究聚乳酸微塑料对淡水鱼(Cirrhinus mrigala)健康和生理的毒性。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-12-01 Epub Date: 2024-10-02 DOI: 10.1007/s10646-024-02813-4
Eram Rashid, Syed Makhdoom Hussain, Shafaqat Ali, Pallab K Sarker, Mohammad Abul Farah
{"title":"Investigating the toxicity of polylactic acid microplastics on the health and physiology of freshwater fish, Cirrhinus mrigala.","authors":"Eram Rashid, Syed Makhdoom Hussain, Shafaqat Ali, Pallab K Sarker, Mohammad Abul Farah","doi":"10.1007/s10646-024-02813-4","DOIUrl":"10.1007/s10646-024-02813-4","url":null,"abstract":"<p><p>The widespread presence of microplastics (MPs) in aquatic ecosystems has raised growing concerns among ecotoxicologists regarding their potential toxicity. This study explored the impacts of polylactic acid (PLA) MPs on the physiology and health of freshwater fish, Cirrhinus mrigala, by dietary exposure for 90 days. The experiment consisted of six groups: five treatment groups (0.5%, 1%, 1.5%, 2%, and 2.5% PLA-MP) and a control group (0% PLA-MP). Each group was comprised of fifteen fish, and the experiment was replicated three times. The exposure severity of PLA-MPs varied from low to high, with treatment levels ranging from 0.5% to 2.5% PLA-MPs, relative to the control group. This exposure significantly affected their growth performance. Additionally, the apparent digestibility of the SFM-based diet decreased with increasing PLA-MPs concentration. Exposure to PLA-MPs induced considerable changes in body composition, characterized by increased moisture and crude fat content and decreased ash content and crude protein. The blood profile, including MCHC, RBCs, Hb, PLT and PCV exhibited significant declines in the high treatment group (2.5% PLA-MPs), while MCH, WBCs and MCV showed notable increases. Furthermore, histopathological examination of the intestine revealed an increase in abnormalities in the intestine at 2.5% PLA-MPs level. The high treatment group (2.5% PLA-MPs) showed the lowest mineral content in the fish muscles. In summary, dietary exposure to PLA-MPs led to alterations in overall body performance across the treatment groups, ranging from low to high severity levels.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"1210-1221"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142361328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toxicodynamics of cadmium in the green mussel Perna viridis (Linnaeus, 1758) using bioenergetic and physiological biomarkers. 利用生物能量和生理生物标志物研究绿贻贝(Perna viridis)(林奈,1758 年)体内镉的毒效学。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-12-01 Epub Date: 2024-10-09 DOI: 10.1007/s10646-024-02814-3
Kariyil Veettil Neethu, Neethu Xavier, Punnakkal Hari Praved, Naduvath Deepak Sankar, Punnathi Anilkumar Athira, Sivasankaran Bijoy Nandan, Kandussery Joseph Joseph, Shambanagouda Rudragouda Marigoudar, Krishna Venkatarama Sharma
{"title":"Toxicodynamics of cadmium in the green mussel Perna viridis (Linnaeus, 1758) using bioenergetic and physiological biomarkers.","authors":"Kariyil Veettil Neethu, Neethu Xavier, Punnakkal Hari Praved, Naduvath Deepak Sankar, Punnathi Anilkumar Athira, Sivasankaran Bijoy Nandan, Kandussery Joseph Joseph, Shambanagouda Rudragouda Marigoudar, Krishna Venkatarama Sharma","doi":"10.1007/s10646-024-02814-3","DOIUrl":"10.1007/s10646-024-02814-3","url":null,"abstract":"<p><p>This study evaluated the toxicity of cadmium (Cd) on the green mussel Perna viridis, aiming to identify toxicological endpoints and investigate its responses across physiological, bioenergetic, and biochemical parameters. The 96-hour LC<sub>50</sub> value for Cd in P. viridis was 3.03 ± 0.12 mg L<sup>-1</sup>, with a 95% confidence interval of 2.35-3.91 mg L<sup>-1</sup>. Chronic toxicity tests revealed a No Observable Effect Concentration (NOEC), Lowest Observable Effect Concentration (LOEC), and chronic toxicity values of 0.20, 0.37, and 0.29 mg L<sup>-1</sup>, respectively. Cadmium accumulation in treated mussels increased 46- to 215-fold compared to the control group. Superoxide dismutase, catalase, glutathione S-transferase, and glutathione peroxidase levels in exposed mussels exhibited a significant increase compared to the control group. The redox index ratio, acetylcholinesterase activity, and lysosomal membrane stability decreased with increasing exposure concentrations. Levels of reduced and oxidized glutathione, glutathione reductase, lipid peroxidation, and metallothionein-like proteins increased in exposed mussels. Clearance rate, respiration rate, and excretion rate decreased in a dose-dependent manner. Protein, carbohydrate, and lipid levels decreased with increasing exposure concentration (p < 0.001). Mitochondrial electron transport system activity increased, while cellular energy allocation (p < 0.001) and scope for growth decreased in a dose-dependent manner (p < 0.01). The significant increase in antioxidants suggests heightened oxidative stress in mussels under Cd exposure. The physiological activities of the mussels were severely affected, ultimately leading to a reduced scope for growth. The toxicological data generated in this study contribute to the development of seawater quality criteria for the metal Cd.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"1222-1241"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142388928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of aerial liming on soil chemical and biological properties in metal contaminated and inaccessible lands in Ontario (Canada). 在安大略省(加拿大)受金属污染和无法进入的土地上进行航空石灰化对土壤化学和生物特性的影响。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-12-01 Epub Date: 2024-10-06 DOI: 10.1007/s10646-024-02804-5
Katheryn Klajman, Peter Beckett, Graeme Spiers, Kabwe Nkongolo
{"title":"Effects of aerial liming on soil chemical and biological properties in metal contaminated and inaccessible lands in Ontario (Canada).","authors":"Katheryn Klajman, Peter Beckett, Graeme Spiers, Kabwe Nkongolo","doi":"10.1007/s10646-024-02804-5","DOIUrl":"10.1007/s10646-024-02804-5","url":null,"abstract":"<p><p>The manual addition of lime to soil, in addition to tree planting and fertilization have been the dominant strategy described in restoration protocols for ecosystems damaged by acid rain and metal contamination. Investigations on aerial-limed soils in inaccessible lands are limited. The objective of this study was to assess the effects of aerial liming on soil pH, organic matter, microbial biomass, and enzymatic activities, and aboveground plant population quality in metal-contaminated lands in northern Ontario, Canada. Soil samples were collected from three sites around the City of Greater Sudbury with each pair being composed of a reclaimed (areal-limed) site and an adjacent undisturbed (unlimed) area. Soil physico-chemistry, microbial biomass (assessed by Phospholipid fatty acid analysis) and enzymatic activities were analyzed. Soil pH was higher in limed sites compared to unlimed at recently restored sites (Baby Lake and Wahnapitae) but not at the oldest reclaimed site (HWY 80 N). Organic matter was higher in limed areas compared to the unlimed reference site only at most recently reclaimed site at Baby Lake. Aboveground plant population health was visibly improved in limed sites compared to unlimed areas. Metal concentrations of iron (Fe) and arsenic (As), total microbial biomasses, gram-negative bacterial, fungal, and eukaryotic biomasses were all significantly increased in the limed soils compared to the unlimed samples. The same trend was observed for the activities of three of the enzymes tested, β-N-acetylglucosaminidase (BG), aryl sulfatase (AS), and glycine aminopeptidase (GAP). Interestingly, strong positive correlations between the levels of soil organic matter, microbial biomasses, and NAGase and ALP activities were observed. Although expensive, aerial liming is effective in restoring inaccessible sites impacted by smelting operations where other methods cannot easily be used.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"1145-1160"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142379224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phytotoxicity of single and mixed rare earth element (La, Nd and Sm) exposures on Lactuca sativa seed germination and growth. 单一稀土元素和混合稀土元素(镧、钕和钐)暴露对仙人掌种子萌发和生长的植物毒性。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-12-01 Epub Date: 2024-10-08 DOI: 10.1007/s10646-024-02812-5
Silvia Gonçalves Egler, Tamine Martins Roldão, Gabriel Oliveira Santos, Gisele Petronilho Heidelmann, Inês Gomes Fraga, Fabio Veríssimo Correia, Enrico Mendes Saggioro
{"title":"Phytotoxicity of single and mixed rare earth element (La, Nd and Sm) exposures on Lactuca sativa seed germination and growth.","authors":"Silvia Gonçalves Egler, Tamine Martins Roldão, Gabriel Oliveira Santos, Gisele Petronilho Heidelmann, Inês Gomes Fraga, Fabio Veríssimo Correia, Enrico Mendes Saggioro","doi":"10.1007/s10646-024-02812-5","DOIUrl":"10.1007/s10646-024-02812-5","url":null,"abstract":"<p><p>The mode of action, bioaccumulation potential and toxicity of Rare Earth Elements (REE), with several applications in the technology, medical and agricultural fields, are still understudied. The nitrates acute effects on single exposures, binary and ternary mixtures of lanthanum (La), neodymium (Nd) and samarium (Sm) on Lactuca sativa lettuce seed germination and wet biomass in an artificial soil (AS) and an Ultisol were assessed. Germination (EC<sub>50</sub>), wet biomass (IC<sub>50</sub>) and germination inhibition (% GI) were evaluated. EC<sub>50</sub> values show La was the most toxic in Ultisol, Sm in AS, and Nd appears with intermediate values on both substrates. The IC<sub>50</sub>, both single and mixed, decreased from 3- to 181-fold with increasing test concentrations in relation to the control in AS, while increases in Ultisol were observed, followed by decreases at higher doses which may be associated with the low-dose stimulation effect (hormesis). Our findings may be used to subsidize REE risk assessment studies and reinforce the hormesis effect to prevent the use of high application of REE fertilizers, avoiding the accumulation of REE in agricultural soils.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"1193-1209"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142388926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stress biomarker response in Aporrectodea caliginosa earthworms exposed to single and combined pesticide treatments (Prosaro and Decis). Aporrectodea caliginosa蚯蚓暴露于单一和混合杀虫剂处理(Prosaro 和 Decis)后的应激生物标志物反应。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-12-01 Epub Date: 2024-10-09 DOI: 10.1007/s10646-024-02811-6
Djamila Hafsi, Ibtissem Sbartai, Hana Sbartai
{"title":"Stress biomarker response in Aporrectodea caliginosa earthworms exposed to single and combined pesticide treatments (Prosaro and Decis).","authors":"Djamila Hafsi, Ibtissem Sbartai, Hana Sbartai","doi":"10.1007/s10646-024-02811-6","DOIUrl":"10.1007/s10646-024-02811-6","url":null,"abstract":"<p><p>This study aims to assess the impact of two pesticides commonly used in Algeria (Prosaro XRT and Decis 25 EC), as well as their combinations at recommended doses, on a non-target species bioindicator of soil pollution, the earthworm Aporrectodea caliginosa, using physiological (mortality and growth) and biochemical parameters (proteins, glutathione, catalase activity and glutathione S-transferase, acetylcholine esterase, lipoxygenase). The recommended dose and its double were tested individually and in combination for this. It should be noted that the protocol used and the initial concentrations selected are the same as those used in the field. After 7 and 14 days (7D/14D) of exposure, all dosages were administered. Our findings show that the pesticides tested had no effect on earthworm survival. However, a significant decrease in their growth rates depending on the different concentrations was observed for the different treatments over the entire exposure period of 7 or 14 D. The greatest reductions (31.62%, 35.04%) are reported after 14D for the high concentrations of Decis alone (D2) as well as for the combined treatment Prosaro/Decis (P2/D2). At the same time, an increase in total protein contents (more than 50% after 14D) as well as a decrease in acetylcholine esterase activity were reported for all treatments. We were also able to identify the induction of oxidative stress after xenobiotic exposure, which is more pronounced at the end of the treatment (14D), resulting in the stimulation of the antioxidant system (gluthione, glutathione S-transférase, catalase) as well as the induction of lipoxygenase, which is responsible for the oxidation of polyunsaturated fatty acids as well as the generation of reactive oxygen species (ROS) involved in the inflammatory phenomenon. Finally, it turns out that the species Aporrectodea caliginosa is sensitive to the different concentrations applied, even those used in the open field, and that Decis (deltamethrin) seems to be more toxic than Prosaro and that the combinaison P2/D2 is as toxic as Decis alone (D2).</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"1180-1192"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142388927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Picloram drift in Peltophorum dubium, a species native to the Brazilian Cerrado. Peltophorum dubium的Picloram漂移,一种原产于巴西塞拉多的物种。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-12-01 DOI: 10.1007/s10646-024-02841-0
José Ângeles Moreira de Oliveira, Leonardo David Tuffi Santos, Murilo Antônio Oliveira Ruas, Luan Mateus Silva Donato, Victor Augustus Vasconcelos de Oliveira, Yuri Silva Saraiva Guimarães, Richardson Fernandes de Souza, Rodinei Facco Pegoraro
{"title":"Picloram drift in Peltophorum dubium, a species native to the Brazilian Cerrado.","authors":"José Ângeles Moreira de Oliveira, Leonardo David Tuffi Santos, Murilo Antônio Oliveira Ruas, Luan Mateus Silva Donato, Victor Augustus Vasconcelos de Oliveira, Yuri Silva Saraiva Guimarães, Richardson Fernandes de Souza, Rodinei Facco Pegoraro","doi":"10.1007/s10646-024-02841-0","DOIUrl":"https://doi.org/10.1007/s10646-024-02841-0","url":null,"abstract":"<p><p>Peltophorum dubium, a common tree in areas close to agricultural activity in the Brazilian Cerrado, is vulnerable to damage from the drift of picloram, an herbicide widely used in pastures and agriculture in Brazil. The aim was to evaluate the application of 0.0; 19.2; 38.4; 76.8; 153.6; 307.2 g e. a. ha<sup>-1</sup> of picloram, in simulated drift, on P. dubium, as well as its use as a bioindicator plant for herbicide contamination. The doses of picloram applied to the plants caused symptoms typical of the action of picloram on sensitive plants and led to the death of P. dubium at the highest doses tested. At its highest dose, picloram caused a 52.86% reduction in photosynthetic rate, 42.51% in transpiration rate, and 64.28% in stomatal conductance compared to the non-treated control. Picloram at a dose of 19.2 g e. a. ha<sup>-1</sup> caused a reduction in N content and utilization and reduced plant protein. Picloram drift causes severe damage to P. dubium, reinforcing the concern about the risks of contamination with the herbicide. The species acted as a bioindicator of picloram in the environment and could be used in biomonitoring herbicide contamination.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142767504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microplastics in marine fish: a mini-review on presence, classification, and impacts. 海洋鱼类中的微塑料:关于存在、分类和影响的综述。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-11-30 DOI: 10.1007/s10646-024-02837-w
María Timaná Morales, Viridiana Peraza Gómez, Eva R Kozak, José Vladimir Trejo Flores, Maricruz Robles Ravelero, Luis Daniel Espinosa Chaurand, Edgar Iván Jiménez Ruíz
{"title":"Microplastics in marine fish: a mini-review on presence, classification, and impacts.","authors":"María Timaná Morales, Viridiana Peraza Gómez, Eva R Kozak, José Vladimir Trejo Flores, Maricruz Robles Ravelero, Luis Daniel Espinosa Chaurand, Edgar Iván Jiménez Ruíz","doi":"10.1007/s10646-024-02837-w","DOIUrl":"https://doi.org/10.1007/s10646-024-02837-w","url":null,"abstract":"<p><p>Plastic production has experienced exponential growth in recent years due to its diverse industrial applications, low cost, and high availability, also causing issues, since plastic waste in aquatic ecosystems transforms into microplastics (MPs) through mechanical and weathering processes. Microplastics are distributed ubiquitously in water bodies, where they can be ingested by a wide aquatic organism range, including fish, which have been used as bioindicators to assess microplastic presence and toxicity. Research has revealed microplastic presence in various fish species worldwide; the most common characteristics are fibers and fragments of blue, black, and transparent colors, and polyethylene, terephthalate, polypropylene and cellophane chemical composition. Experimental studies under laboratory conditions have demonstrated microplastics impact on fish, showing physical, immunological, and hematological damage, and oxidative stress ultimately leading to organisms' death. However, laboratory results do not necessarily predict impacts on wild fish due to different conditions to which the organisms are exposed. Therefore, further research needs to simulate real scenarios faced by wild fish in the marine environment, providing greater certainty about microplastic impacts and negative effects.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142767470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chronic toxicity and intergenerational effects of N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) exposure alone and in combination with Zn2+ on Daphnia magna (Cladocera). N-(1,3-二甲基丁基)-N'-苯基-对苯二胺(6PPD)单独暴露和与Zn2+联合暴露对大水蚤的慢性毒性和代际效应
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-11-29 DOI: 10.1007/s10646-024-02836-x
Liu Yang, Kexin Liu, Lina Shi, Ming Chen, Junyan Liu, Shiniu Dai, Yilong Xi, Xinli Wen
{"title":"Chronic toxicity and intergenerational effects of N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) exposure alone and in combination with Zn<sup>2+</sup> on Daphnia magna (Cladocera).","authors":"Liu Yang, Kexin Liu, Lina Shi, Ming Chen, Junyan Liu, Shiniu Dai, Yilong Xi, Xinli Wen","doi":"10.1007/s10646-024-02836-x","DOIUrl":"https://doi.org/10.1007/s10646-024-02836-x","url":null,"abstract":"<p><p>N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) and Zn<sup>2+</sup>, extensively used in the tire manufacturing process, are frequently detected in freshwater environments. However, the intergenerational effects of isolated 6PPD exposure and joint 6PPD and Zn<sup>2+</sup> exposure at concentrations approximating environmental levels remain unknown. This study assessed the chronic toxicity and intergenerational effects of 6PPD (0.02-20 μg/L) and a mixture of 6PPD and Zn<sup>2+</sup> (5 μg/L) over three generations in Daphnia magna bioassays. In the F0 generation, a dose-dependent decline in total offspring number was observed with 6PPD exposure alone, while co-exposure with Zn<sup>2+</sup> exacerbated the reproductive toxicity of 6PPD. Across three generations, low-dose (0.02 µg/L) 6PPD alone and combined with Zn<sup>2+</sup> induced a cumulative degenerative maternal effect. Conversely, high-dose (20 µg/L) 6PPD, both independently and in combination with Zn<sup>2+</sup>, exhibited an adaptive maternal effect. Notably, the grandmaternal effect emerged exclusively in the co-exposure group treated with 20 μg/L 6PPD and 5 μg/L Zn<sup>2+</sup>, with no such effect in the group exposed to 20 μg/L 6PPD alone, suggesting that Zn<sup>2+</sup> may enhance the potential toxicity of 6PPD. Overall, this study provides novel insight into the intergenerational impacts of environmentally relevant levels of 6PPD alone and in combination with a heavy metal, elucidating the environmental risks posed by tire-derived chemicals through their synergistic effects on transgenerational toxicity.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of atrazine, diuron and glyphosate mixtures on zebrafish embryos: acute toxicity and oxidative stress responses. 阿特拉津、迪乌伦和草甘膦混合物对斑马鱼胚胎的影响:急性毒性和氧化应激反应。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-11-29 DOI: 10.1007/s10646-024-02839-8
Maria Eduarda Maia, Rafael Xavier Martins, Matheus Carvalho, Luís M Félix, Luis Fernando Marques-Santos, Davi Farias
{"title":"Effects of atrazine, diuron and glyphosate mixtures on zebrafish embryos: acute toxicity and oxidative stress responses.","authors":"Maria Eduarda Maia, Rafael Xavier Martins, Matheus Carvalho, Luís M Félix, Luis Fernando Marques-Santos, Davi Farias","doi":"10.1007/s10646-024-02839-8","DOIUrl":"https://doi.org/10.1007/s10646-024-02839-8","url":null,"abstract":"<p><p>Synthetic pesticides are known for their toxic effects on non-target aquatic organisms. However, little is known about their effects when present in mixtures, which are closer to realistic exposure scenarios. Therefore, this study evaluates the toxicity of pesticides such as diuron, atrazine and glyphosate, individually and in combination, in zebrafish embryos, investigating their mechanisms of oxidative stress. The results revealed acute toxicity for diuron and atrazine, with LC<sub>50</sub> values of 9.6 mg/L and 53.57 mg/L for 96-h-old zebrafish, respectively. On the other hand, no effect was observed for glyphosate alone at the maximum concentration tested (100 mg/L). The mixture of diuron and atrazine showed a synergistic effect, resulting in a decrease in the LC<sub>50</sub> of each pesticide. Mixtures of diuron + glyphosate and atrazine + glyphosate were considered additive and antagonistic, respectively. All biomarkers analyzed (AChE, LDH, GST, CAT and GPx) showed significant changes. Furthermore, an increase in ROS production was observed in larvae exposed to individual and in the mixture composed of atrazine and diuron. These findings indicate that atrazine and diuron exhibit increased toxicity when combined, with their mechanisms of action-both in isolation and in mixtures-being at least partially linked to oxidative stress.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effects of diatom polyunsaturated aldehydes on embryonic and larval zebrafish (Danio rerio). 硅藻多不饱和醛对斑马鱼胚胎和幼鱼的影响。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2024-11-29 DOI: 10.1007/s10646-024-02838-9
Rachel Raymer, Soraya M Jessa, W James Cooper, M Brady Olson
{"title":"The effects of diatom polyunsaturated aldehydes on embryonic and larval zebrafish (Danio rerio).","authors":"Rachel Raymer, Soraya M Jessa, W James Cooper, M Brady Olson","doi":"10.1007/s10646-024-02838-9","DOIUrl":"https://doi.org/10.1007/s10646-024-02838-9","url":null,"abstract":"<p><p>Marine diatoms are pervasive in many planktonic and benthic environments and represent an important food source for a wide range of species. Some diatoms produce polyunsaturated aldehydes (PUAs) as defensive toxins. PUA exposure is known to reduce the fecundity of invertebrate grazers like copepods and echinoderm larvae, but little is known about the effects of PUAs on vertebrates. Many fish species are likely to come into close contact with diatoms. Many may deposit eggs on diatom-coated substrates, consume diatoms as larvae, and/or feed heavily on zooplankters that may be gut-loaded with diatoms. The purpose of this study was to test whether dissolved diatom PUAs affect the early life stages of a model fish, Danio rerio (zebrafish). To test this, zebrafish embryos and larvae were exposed to proportionally increasing mixtures of the dissolved diatom PUAs 2E,4E-decadienal, 2E,4E-octadienal and 2E,4E-heptadienal. Under PUA exposure, three metrics of fitness were assessed: embryo heart rate, larval size at hatch, and pre-feeding mortality rate. Zebrafish embryos exposed at 24 h post fertilization (hpf) experienced decreased average heart rate after 2 days of PUA exposure. Embryos 24 hpf exposed to PUA mixtures for 6 days showed a reduction in size in comparison to embryos from controls. Embryos exposed to PUAs from 2 hpf until death showed lower survivorship compared to larvae in controls. The results of this study suggest that larval fish that are sympatric with PUA producing diatoms during their embryonic and larval stages may be susceptible to detrimental effects from PUA exposure.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信