Vasil A Gaisin, Corina Hadjicharalambous, Izabela Mujakić, Cristian Villena-Alemany, Jiangning Li, Michal Koblížek, Martin Pilhofer
Bacterial contractile injection systems (CISs) are multiprotein complexes that facilitate the bacterial response to environmental factors or interactions with other organisms. Multiple novel CISs have been characterised in laboratory bacterial cultures recently; however, studying CISs in the context of the native microbial community remains challenging. Here, we present an approach to characterise a bioinformatically predicted CIS by directly analysing bacterial cells from their natural environment. Using cryo-focused ion beam milling and cryo-electron tomography (cryoET) imaging, guided by 16S rRNA gene amplicon sequencing, we discovered that thermophilic Chloroflexota bacteria produce intracellular CIS particles in a natural hot spring microbial mat. We then found a niche-specific production of CIS in the structured microbial community using an approach combining metagenomics, proteomics, and immunogold staining. Bioinformatic analysis and imaging revealed CISs in other extremophilic Chloroflexota and Deinococcota. This Chloroflexota/Deinococcota CIS lineage shows phylogenetic and structural similarity to previously described cytoplasmic CIS from Streptomyces and probably shares the same cytoplasmic mode of action. Our integrated environmental cryoET approach is suitable for discovering and characterising novel macromolecular complexes in environmental samples.
{"title":"Thermophilic bacteria employ a contractile injection system in hot spring microbial mats.","authors":"Vasil A Gaisin, Corina Hadjicharalambous, Izabela Mujakić, Cristian Villena-Alemany, Jiangning Li, Michal Koblížek, Martin Pilhofer","doi":"10.1093/ismejo/wrag021","DOIUrl":"https://doi.org/10.1093/ismejo/wrag021","url":null,"abstract":"<p><p>Bacterial contractile injection systems (CISs) are multiprotein complexes that facilitate the bacterial response to environmental factors or interactions with other organisms. Multiple novel CISs have been characterised in laboratory bacterial cultures recently; however, studying CISs in the context of the native microbial community remains challenging. Here, we present an approach to characterise a bioinformatically predicted CIS by directly analysing bacterial cells from their natural environment. Using cryo-focused ion beam milling and cryo-electron tomography (cryoET) imaging, guided by 16S rRNA gene amplicon sequencing, we discovered that thermophilic Chloroflexota bacteria produce intracellular CIS particles in a natural hot spring microbial mat. We then found a niche-specific production of CIS in the structured microbial community using an approach combining metagenomics, proteomics, and immunogold staining. Bioinformatic analysis and imaging revealed CISs in other extremophilic Chloroflexota and Deinococcota. This Chloroflexota/Deinococcota CIS lineage shows phylogenetic and structural similarity to previously described cytoplasmic CIS from Streptomyces and probably shares the same cytoplasmic mode of action. Our integrated environmental cryoET approach is suitable for discovering and characterising novel macromolecular complexes in environmental samples.</p>","PeriodicalId":50271,"journal":{"name":"ISME Journal","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146151238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2026-02-10DOI: 10.1016/j.resconrec.2026.108833
Wim Van Opstal, Nancy Bocken, Jan Brusselaers
{"title":"Why organisational diversity matters in a circular economy and society","authors":"Wim Van Opstal, Nancy Bocken, Jan Brusselaers","doi":"10.1016/j.resconrec.2026.108833","DOIUrl":"https://doi.org/10.1016/j.resconrec.2026.108833","url":null,"abstract":"","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"244 1","pages":""},"PeriodicalIF":13.2,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2026-02-10Epub Date: 2026-01-24DOI: 10.1016/j.scitotenv.2026.181448
Yanqiong Zeng, Honghui Wang, Jiehua Hu, Jing Zhang, Feng Wang, Tongyu Wang, Randy A Dahlgren, Hui Gao, Zheng Chen
{"title":"Corrigendum to \"illuminated fulvic acid stimulates denitrification and As(III) immobilization in flooded paddy soils via an enhanced biophotoelectrochemical pathway\" [Sci. Total Environ. 912 (2024), 169670].","authors":"Yanqiong Zeng, Honghui Wang, Jiehua Hu, Jing Zhang, Feng Wang, Tongyu Wang, Randy A Dahlgren, Hui Gao, Zheng Chen","doi":"10.1016/j.scitotenv.2026.181448","DOIUrl":"10.1016/j.scitotenv.2026.181448","url":null,"abstract":"","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"181448"},"PeriodicalIF":8.0,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146045709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2026-02-10DOI: 10.1007/s11356-026-37490-9
Thomas Nash, Paul Kay, Laura J Carter
Micro- and nanoplastics (MNPs) are known to detrimentally impact a wide range of aquatic species, inducing mortality, decreased growth, a reduction in offspring production and increase in reactive oxygen species in their tissues. However, the genotoxic impact of MNPs in freshwater organisms remains understudied. In the present study we investigate the genotoxic impact of acute exposure to polystyrene nanoparticles (PSNPs) in Daphnia pulex using the comet assay, alongside immobilisation rate and hopping frequency. Daphnids were exposed to 100 nm PSNPs for 24 and 48 h at concentrations between 10 and 200 mg/L. Immobilisation increased with PSNPs concentration and exposure time, while hopping frequency among surviving daphnids decreased at concentrations above 100 mg/L after 24 h, and above 50 mg/L after 48 h. Comet assay results showed increasing DNA damage with concentration and exposure time, with significant DNA damage after 24 h of exposure to 200 mg/L PSNPs, and after 48 h of exposure to 100 and 200 mg/L. These results suggest that exposure to MNPs increases daphnid mortality, impacts behaviour, and induces genotoxicity. The incorporation of the comet assay into freshwater monitoring methods alongside existing techniques could further understanding of the full impact of MNP pollution upon ecosystem health.
{"title":"Acute exposure to high concentrations of polystyrene nanoparticles induces genotoxicity in Daphnia pulex.","authors":"Thomas Nash, Paul Kay, Laura J Carter","doi":"10.1007/s11356-026-37490-9","DOIUrl":"https://doi.org/10.1007/s11356-026-37490-9","url":null,"abstract":"<p><p>Micro- and nanoplastics (MNPs) are known to detrimentally impact a wide range of aquatic species, inducing mortality, decreased growth, a reduction in offspring production and increase in reactive oxygen species in their tissues. However, the genotoxic impact of MNPs in freshwater organisms remains understudied. In the present study we investigate the genotoxic impact of acute exposure to polystyrene nanoparticles (PSNPs) in Daphnia pulex using the comet assay, alongside immobilisation rate and hopping frequency. Daphnids were exposed to 100 nm PSNPs for 24 and 48 h at concentrations between 10 and 200 mg/L. Immobilisation increased with PSNPs concentration and exposure time, while hopping frequency among surviving daphnids decreased at concentrations above 100 mg/L after 24 h, and above 50 mg/L after 48 h. Comet assay results showed increasing DNA damage with concentration and exposure time, with significant DNA damage after 24 h of exposure to 200 mg/L PSNPs, and after 48 h of exposure to 100 and 200 mg/L. These results suggest that exposure to MNPs increases daphnid mortality, impacts behaviour, and induces genotoxicity. The incorporation of the comet assay into freshwater monitoring methods alongside existing techniques could further understanding of the full impact of MNP pollution upon ecosystem health.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146148693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Pub Date : 2026-02-10DOI: 10.1016/j.marpolbul.2026.119376
Wenjia Sun, Yumei Li, Fanping Meng, Houlei Li, Wenlu Li
Accidental spill of C9 aromatics into the sea leads to adverse effects on the marine ecosystem. Two propylbenzenes, n-propylbenzene (n-PBZ) and isopropylbenzene (i-PBZ), are the main components in C9 aromatics. Thus, this study attempted to utilize microalga-microalga consortium (MMC) to eliminate PBZs' pollution in seawater. Among the 10 species of candidate microalgae, two species, diatom Chaetoceros calcitrans MZB-1 and Cryptophyta Rhinomonas reticulata S6A were selected because of their higher removal efficiencies for both PBZs (5 mg/L). When their total inoculation density was 5 × 105 cells/mL and the initial density ratio (MZB-1: S6A) was 1:2, the constructed MMC showed the highest removal efficiencies of 79.1% for n-PBZ and 47.1% for i-PBZ within seven days, which were significantly higher than that using the single species. When MMC was exposed to n-PBZ or i-PBZ ranging from 0.5 to 20 mg/L, alga MZB-1 generally grew faster than alga S6A. Degradation of n-PBZ and i-PBZ by MMC followed a first-order reaction model with the degradation rate constants of 0.10–0.37/d and 0.06–0.14/d, respectively. In the presence of n-PBZ or i-PBZ, seven and three intermediates were identified, respectively, revealing that each PBZ first underwent alkyl side chain oxidation to form aromatic alcohols, followed by conversion to aromatic acids. Compared with the single microalga, the main intermediates from PBZ degradation by MMC were more abundant, which accounted for the better removal of PBZs by the microalga-microalga combination. This work provides the first evidence that MMC enhances PBZs elimination and will contribute to the bioremediation of PBZ-contaminated seawater.
{"title":"Enhanced degradation of n-propylbenzene and isopropylbenzene in seawater through microalga-microalga consortium: Combination screening, inoculation ratio, kinetics, and degradation mechanisms","authors":"Wenjia Sun, Yumei Li, Fanping Meng, Houlei Li, Wenlu Li","doi":"10.1016/j.marpolbul.2026.119376","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2026.119376","url":null,"abstract":"Accidental spill of C9 aromatics into the sea leads to adverse effects on the marine ecosystem. Two propylbenzenes, n-propylbenzene (n-PBZ) and isopropylbenzene (i-PBZ), are the main components in C9 aromatics. Thus, this study attempted to utilize microalga-microalga consortium (MMC) to eliminate PBZs' pollution in seawater. Among the 10 species of candidate microalgae, two species, diatom <ce:italic>Chaetoceros calcitrans</ce:italic> MZB-1 and Cryptophyta <ce:italic>Rhinomonas reticulata</ce:italic> S6A were selected because of their higher removal efficiencies for both PBZs (5 mg/L). When their total inoculation density was 5 × 10<ce:sup loc=\"post\">5</ce:sup> cells/mL and the initial density ratio (MZB-1: S6A) was 1:2, the constructed MMC showed the highest removal efficiencies of 79.1% for n-PBZ and 47.1% for i-PBZ within seven days, which were significantly higher than that using the single species. When MMC was exposed to n-PBZ or i-PBZ ranging from 0.5 to 20 mg/L, alga MZB-1 generally grew faster than alga S6A. Degradation of n-PBZ and i-PBZ by MMC followed a first-order reaction model with the degradation rate constants of 0.10–0.37/d and 0.06–0.14/d, respectively. In the presence of n-PBZ or i-PBZ, seven and three intermediates were identified, respectively, revealing that each PBZ first underwent alkyl side chain oxidation to form aromatic alcohols, followed by conversion to aromatic acids. Compared with the single microalga, the main intermediates from PBZ degradation by MMC were more abundant, which accounted for the better removal of PBZs by the microalga-microalga combination. This work provides the first evidence that MMC enhances PBZs elimination and will contribute to the bioremediation of PBZ-contaminated seawater.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"9 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Pub Date : 2026-02-10DOI: 10.1007/s11356-026-37463-y
Eric Danso-Boateng, Ebenezer Adom, Prince Appiah Owusu, Roland Songotu Kabange
Artisanal and small-scale gold mining (ASGM) is common in many developing countries; while it contributes to their socio-economic development, it also causes environmental pollution. This study examined the impact of ASGM activities on the quality of drinking water sources in the Asankrangwa District in Ghana, in terms of water quality index, heavy metal pollution index models, and human health risks. The results of physicochemical parameters indicate that 40.0% of all water sources are unsuitable for consumption. Heavy metal pollution indices indicated that 45.0% of the water sources were extremely polluted, and 25.0% were moderately polluted. For instance, cadmium (Cd) concentrations across all water sources reached levels up to 23 times the WHO limit (3.0 × 10-3 mg/L). Additionally, mercury (Hg) concentrations in 75.0% of the water sources (2.0 × 10-3-7.2 × 10-1 mg/L) exceed the maximum contaminant limit (2.0 × 10-3 mg/L) by approximately 361 times. Streams, in particular, exhibit higher Hg levels than groundwaters. Analysis revealed that 90% of the water sources pose a significant carcinogenic health risk upon consumption, with lifetime cancer risk values exceeding 1.0 × 10-4. The findings revealed that the pollution level is reduced and water quality improved 5 km from the ASGM sites; however, the water sources require treatment to render them suitable for consumption.
{"title":"Pollution and health risk assessment of drinking water sources within artisanal and small-scale gold mining areas: a case of Asankrangwa District in Ghana.","authors":"Eric Danso-Boateng, Ebenezer Adom, Prince Appiah Owusu, Roland Songotu Kabange","doi":"10.1007/s11356-026-37463-y","DOIUrl":"https://doi.org/10.1007/s11356-026-37463-y","url":null,"abstract":"<p><p>Artisanal and small-scale gold mining (ASGM) is common in many developing countries; while it contributes to their socio-economic development, it also causes environmental pollution. This study examined the impact of ASGM activities on the quality of drinking water sources in the Asankrangwa District in Ghana, in terms of water quality index, heavy metal pollution index models, and human health risks. The results of physicochemical parameters indicate that 40.0% of all water sources are unsuitable for consumption. Heavy metal pollution indices indicated that 45.0% of the water sources were extremely polluted, and 25.0% were moderately polluted. For instance, cadmium (Cd) concentrations across all water sources reached levels up to 23 times the WHO limit (3.0 × 10<sup>-3</sup> mg/L). Additionally, mercury (Hg) concentrations in 75.0% of the water sources (2.0 × 10<sup>-3</sup>-7.2 × 10<sup>-1</sup> mg/L) exceed the maximum contaminant limit (2.0 × 10<sup>-3</sup> mg/L) by approximately 361 times. Streams, in particular, exhibit higher Hg levels than groundwaters. Analysis revealed that 90% of the water sources pose a significant carcinogenic health risk upon consumption, with lifetime cancer risk values exceeding 1.0 × 10<sup>-4</sup>. The findings revealed that the pollution level is reduced and water quality improved 5 km from the ASGM sites; however, the water sources require treatment to render them suitable for consumption.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146148684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Ivermectin (IVM) is used antiparasitic drug in veterinary medicine and it is also the only avermectin approved in humans in several parasitic infestations. We examined this substance because potential critical issues associated with the use were highlighted. Moreover, criticisms related to the ecological-environmental sphere, as well as food contamination arise. Nevertheless, current in vitro studies are lacking. This study aimed to investigate the direct impact of IVM on reproductive function using swine granulosa cells as reproductive cell model. The results show that progesterone, ATP and free radicals’ levels significantly increased (p<0.05). Non-enzymatic defense systems as well as autophagy did not show significant differences. On the contrary, cell proliferation, estradiol levels, and enzymatic defense systems significantly decreased (p<0.05) after IVM treatment. Since results show that the normal function of these cells is compromised by IVM the normal reproductive functions of the entire organism could be disrupted.
{"title":"Evaluation of the ivermectin effects on porcine granulosa cell function","authors":"Giuseppina Basini, Fausto Quintavalla, Simona Bussolati, Francesca Grasselli","doi":"10.1016/j.etap.2026.104960","DOIUrl":"https://doi.org/10.1016/j.etap.2026.104960","url":null,"abstract":"Ivermectin (IVM) is used antiparasitic drug in veterinary medicine and it is also the only avermectin approved in humans in several parasitic infestations. We examined this substance because potential critical issues associated with the use were highlighted. Moreover, criticisms related to the ecological-environmental sphere, as well as food contamination arise. Nevertheless, current in vitro studies are lacking. This study aimed to investigate the direct impact of IVM on reproductive function using swine granulosa cells as reproductive cell model. The results show that progesterone, ATP and free radicals’ levels significantly increased (p<0.05). Non-enzymatic defense systems as well as autophagy did not show significant differences. On the contrary, cell proliferation, estradiol levels, and enzymatic defense systems significantly decreased (p<0.05) after IVM treatment. Since results show that the normal function of these cells is compromised by IVM the normal reproductive functions of the entire organism could be disrupted.","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"2 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Pub Date : 2026-02-10DOI: 10.1016/j.marpolbul.2026.119374
Claudia Erhart, Jasmine Nahrgang, Derrick Kwame Odei, Marianne Frantzen, Lisbet Sørensen, Mari Egeness Creese, Velmurugu Puvanendran, Øyvind Johannes Hansen, Bjørn Henrik Hansen, James P. Meador, Fekadu Yadetie
Understanding the long-term biological consequences of crude oil exposure on marine fish is essential for the sustainability of ecologically and economically important species such as Atlantic cod (Gadus morhua). While the direct effects of crude oil on early life stages are well documented, adult reproductive vulnerability and intergenerational consequences remain poorly understood, despite their pivotal role in spawning stock viability. Paternal contributions to next-generation outcomes are particularly underexplored. This study examined how parental exposure to a water-soluble fraction of crude oil affects transcriptomic profiles and survival outcomes in Atlantic cod offspring. Adult fish were exposed for 20 days prior to spawning, and offspring were produced by in vitro cross-fertilization to generate four groups: control (unexposed parents), maternally exposed, paternally exposed and biparentally exposed. Embryos were reared under control conditions, and transcriptome profiles were analyzed from fertilization to hatching, alongside assessments of cardiac function and morphology post-hatch. Offspring from exposed females failed to survive to hatching. Eggs were smaller, and transcriptomic data revealed severe downregulation of genes involved in early developmental processes. Chemical analyses confirmed maternal transfer of a diverse range of petroleum aromatic hydrocarbons to oocytes. Our findings point to disrupted oocyte provisioning, likely linked to endocrine and epigenetic disturbances during oocyte maturation. Paternal exposure had minimal effect on RNA expression, and morphology at hatching. However, reduced survival in early larval stages suggests sublethal effects emerging later, possibly through epigenetic mechanisms, a hypothesis requiring further investigation.
{"title":"Maternal and paternal crude oil exposure differentially shapes early developmental transcriptomes and survival outcomes in Atlantic cod (Gadus morhua)","authors":"Claudia Erhart, Jasmine Nahrgang, Derrick Kwame Odei, Marianne Frantzen, Lisbet Sørensen, Mari Egeness Creese, Velmurugu Puvanendran, Øyvind Johannes Hansen, Bjørn Henrik Hansen, James P. Meador, Fekadu Yadetie","doi":"10.1016/j.marpolbul.2026.119374","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2026.119374","url":null,"abstract":"Understanding the long-term biological consequences of crude oil exposure on marine fish is essential for the sustainability of ecologically and economically important species such as Atlantic cod (<ce:italic>Gadus morhua</ce:italic>). While the direct effects of crude oil on early life stages are well documented, adult reproductive vulnerability and intergenerational consequences remain poorly understood, despite their pivotal role in spawning stock viability. Paternal contributions to next-generation outcomes are particularly underexplored. This study examined how parental exposure to a water-soluble fraction of crude oil affects transcriptomic profiles and survival outcomes in Atlantic cod offspring. Adult fish were exposed for 20 days prior to spawning, and offspring were produced by <ce:italic>in vitro</ce:italic> cross-fertilization to generate four groups: control (unexposed parents), maternally exposed, paternally exposed and biparentally exposed. Embryos were reared under control conditions, and transcriptome profiles were analyzed from fertilization to hatching, alongside assessments of cardiac function and morphology post-hatch. Offspring from exposed females failed to survive to hatching. Eggs were smaller, and transcriptomic data revealed severe downregulation of genes involved in early developmental processes. Chemical analyses confirmed maternal transfer of a diverse range of petroleum aromatic hydrocarbons to oocytes. Our findings point to disrupted oocyte provisioning, likely linked to endocrine and epigenetic disturbances during oocyte maturation. Paternal exposure had minimal effect on RNA expression, and morphology at hatching. However, reduced survival in early larval stages suggests sublethal effects emerging later, possibly through epigenetic mechanisms, a hypothesis requiring further investigation.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"5 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Pub Date : 2026-02-10Epub Date: 2026-01-29DOI: 10.1016/j.scitotenv.2026.181474
Ana Santurtún, Pablo Medín, José Antonio Riancho, Marina Santiago-Setién, Fernando Ortiz, Adolfo López de Munain, Ricardo Almendra, Javier Riancho
{"title":"Corrigendum to \"Temporo-spatial analysis of amyotrophic lateral sclerosis in Spain: Altitude and land use as new determinants of the disease\" [Sci. Total Environ., 957 (2024), 177796].","authors":"Ana Santurtún, Pablo Medín, José Antonio Riancho, Marina Santiago-Setién, Fernando Ortiz, Adolfo López de Munain, Ricardo Almendra, Javier Riancho","doi":"10.1016/j.scitotenv.2026.181474","DOIUrl":"10.1016/j.scitotenv.2026.181474","url":null,"abstract":"","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":" ","pages":"181474"},"PeriodicalIF":8.0,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146083831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2026-02-10DOI: 10.1016/j.watres.2026.125539
Charlotte Lafont, Stéphane Vaxelaire, Alexandre Gelabert, Catherine Joulian, Hugues Thouin, Frédéric Duré, Mickael Charron, Josselin Gorny, Delphine Vantelon, Fabienne Battaglia-Brunet, Éric D. van Hullebusch
Manganese (Mn) removal in passive mine water treatment remains a challenge due to its slow oxidation kinetics, requiring specific biogeochemical conditions. Constructed wetlands are often the key functional units enabling Mn removal in full-scale passive treatment plants. This study examines the key biogeochemical factors influencing Mn removal in a full-scale passive mine water treatment plant located in Alès (South-East France). Over one year, monitoring of physicochemical parameters, microbial communities, and Mn speciation in solid phases was conducted every two months. Results highlight temporal variations in Mn removal efficiency, with two main mechanisms identified: (1) Mn carbonate (MnCO₃) precipitation, likely influenced by high carbonate concentrations in mine water, and (2) Mn oxide (δ-MnO₂) formation, mainly associated with reed rhizosphere, where it accumulates as mineral plaque. In mine water, Mn removal correlates with Fe particle concentrations, suggesting a catalytic effect, as well as with alkalinity and the abundance of microorganisms affiliated to Alteromonadaceae, suggesting a microbial influence. Mn removal appears to be primarily abiotic, driven by favourable pH and alkaline conditions that promote Mn carbonate precipitation, by autocatalytic oxidation reactions occurring on rhizosphere surfaces and by plant’s design including surface area and hydrological conditions. Microbial communities may facilitate certain Mn removal processes depending on environmental conditions.
{"title":"Manganese removal in a full-scale constructed wetland for passive mine water treatment: environmental factors and microbial communities","authors":"Charlotte Lafont, Stéphane Vaxelaire, Alexandre Gelabert, Catherine Joulian, Hugues Thouin, Frédéric Duré, Mickael Charron, Josselin Gorny, Delphine Vantelon, Fabienne Battaglia-Brunet, Éric D. van Hullebusch","doi":"10.1016/j.watres.2026.125539","DOIUrl":"https://doi.org/10.1016/j.watres.2026.125539","url":null,"abstract":"Manganese (Mn) removal in passive mine water treatment remains a challenge due to its slow oxidation kinetics, requiring specific biogeochemical conditions. Constructed wetlands are often the key functional units enabling Mn removal in full-scale passive treatment plants. This study examines the key biogeochemical factors influencing Mn removal in a full-scale passive mine water treatment plant located in Alès (South-East France). Over one year, monitoring of physicochemical parameters, microbial communities, and Mn speciation in solid phases was conducted every two months. Results highlight temporal variations in Mn removal efficiency, with two main mechanisms identified: (1) Mn carbonate (MnCO₃) precipitation, likely influenced by high carbonate concentrations in mine water, and (2) Mn oxide (δ-MnO₂) formation, mainly associated with reed rhizosphere, where it accumulates as mineral plaque. In mine water, Mn removal correlates with Fe particle concentrations, suggesting a catalytic effect, as well as with alkalinity and the abundance of microorganisms affiliated to <em>Alteromonadaceae</em>, suggesting a microbial influence. Mn removal appears to be primarily abiotic, driven by favourable pH and alkaline conditions that promote Mn carbonate precipitation, by autocatalytic oxidation reactions occurring on rhizosphere surfaces and by plant’s design including surface area and hydrological conditions. Microbial communities may facilitate certain Mn removal processes depending on environmental conditions.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"211 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号