Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2023 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.aquatox.2023.106516 http://hdl.handle.net/11449/247091 |
Resumo: | Microplastics are widespread pollutants in the environment and are considered a global pollution problem. Microplastics mostly originate from larger plastics and due to environmental conditions are undergoing constant fragmentation processes. It is important to understand the fragmentation pathways, since they play a key role in the fate of the particles, and also directly influence toxicity. Amphipods are potential inducers of plastic debris fragmentation. Here, Hyalella azteca was exposed to different concentrations (540, 2700, 5400 items/L) of 24.5 µm polystyrene microplastics (PS-MP) for 7 days. After exposure, oxidative stress, particle size reduction, and mortality were checked. No significant mortality was seen in any of the treatments, although changes were recorded in all enzymatic biomarkers analyzed. It was observed that throughout the ingestion and egestion of PS-MP by H. azteca, particles underwent intense fragmentation, presenting a final size up to 25.3% smaller than the initial size. The fragmentation over time (24, 72, 120, 168 h) was verified and the results showed a constant reduction in average particle size indicating that H. azteca are able to induce PS-MP fragmentation. This process may facilitate bioaccumulation and trophic particle transfer. |
id |
UNSP_712f34fc1b702d3ac4ec3a41e866f074 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/247091 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentationFragmentationFreshwater amphipodIngestionOxidative stressPolystyreneMicroplastics are widespread pollutants in the environment and are considered a global pollution problem. Microplastics mostly originate from larger plastics and due to environmental conditions are undergoing constant fragmentation processes. It is important to understand the fragmentation pathways, since they play a key role in the fate of the particles, and also directly influence toxicity. Amphipods are potential inducers of plastic debris fragmentation. Here, Hyalella azteca was exposed to different concentrations (540, 2700, 5400 items/L) of 24.5 µm polystyrene microplastics (PS-MP) for 7 days. After exposure, oxidative stress, particle size reduction, and mortality were checked. No significant mortality was seen in any of the treatments, although changes were recorded in all enzymatic biomarkers analyzed. It was observed that throughout the ingestion and egestion of PS-MP by H. azteca, particles underwent intense fragmentation, presenting a final size up to 25.3% smaller than the initial size. The fragmentation over time (24, 72, 120, 168 h) was verified and the results showed a constant reduction in average particle size indicating that H. azteca are able to induce PS-MP fragmentation. This process may facilitate bioaccumulation and trophic particle transfer.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Rufford FoundationInstitute of Science and Technology São Paulo State University, UNESP, 3 de Março Avenue 511m SorocabaDepartment of Fundamental Chemistry Institute of Chemistry University of São Paulo, USP, Prof. Lineu Prestes Avenue 748Department of Ecology Institute of Biosciences University of São Paulo, USP, Matão Street 321Department of Biotechnology School of Engineering University of São Paulo, USP, Municipal do Campinho RoadInstitute of Science and Technology São Paulo State University, UNESP, 3 de Março Avenue 511m SorocabaCNPq: 303660/2016–3 301559/2018–0Rufford Foundation: 32839–1Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Rani-Borges, Bárbara [UNESP]Queiroz, Lucas GonçalvesPrado, Caio César Achilesde Melo, Eduardo Carminede Moraes, Beatriz RochaAndo, Rômulo Augustode Paiva, Teresa Cristina BrazilPompêo, Marcelo2023-07-29T13:06:02Z2023-07-29T13:06:02Z2023-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.aquatox.2023.106516Aquatic Toxicology, v. 258.1879-15140166-445Xhttp://hdl.handle.net/11449/24709110.1016/j.aquatox.2023.1065162-s2.0-85151372442Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquatic Toxicologyinfo:eu-repo/semantics/openAccess2023-07-29T13:06:02Zoai:repositorio.unesp.br:11449/247091Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T13:06:02Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation |
title |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation |
spellingShingle |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation Rani-Borges, Bárbara [UNESP] Fragmentation Freshwater amphipod Ingestion Oxidative stress Polystyrene |
title_short |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation |
title_full |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation |
title_fullStr |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation |
title_full_unstemmed |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation |
title_sort |
Exposure of the amphipod Hyalella azteca to microplastics. A study on subtoxic responses and particle biofragmentation |
author |
Rani-Borges, Bárbara [UNESP] |
author_facet |
Rani-Borges, Bárbara [UNESP] Queiroz, Lucas Gonçalves Prado, Caio César Achiles de Melo, Eduardo Carmine de Moraes, Beatriz Rocha Ando, Rômulo Augusto de Paiva, Teresa Cristina Brazil Pompêo, Marcelo |
author_role |
author |
author2 |
Queiroz, Lucas Gonçalves Prado, Caio César Achiles de Melo, Eduardo Carmine de Moraes, Beatriz Rocha Ando, Rômulo Augusto de Paiva, Teresa Cristina Brazil Pompêo, Marcelo |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Rani-Borges, Bárbara [UNESP] Queiroz, Lucas Gonçalves Prado, Caio César Achiles de Melo, Eduardo Carmine de Moraes, Beatriz Rocha Ando, Rômulo Augusto de Paiva, Teresa Cristina Brazil Pompêo, Marcelo |
dc.subject.por.fl_str_mv |
Fragmentation Freshwater amphipod Ingestion Oxidative stress Polystyrene |
topic |
Fragmentation Freshwater amphipod Ingestion Oxidative stress Polystyrene |
description |
Microplastics are widespread pollutants in the environment and are considered a global pollution problem. Microplastics mostly originate from larger plastics and due to environmental conditions are undergoing constant fragmentation processes. It is important to understand the fragmentation pathways, since they play a key role in the fate of the particles, and also directly influence toxicity. Amphipods are potential inducers of plastic debris fragmentation. Here, Hyalella azteca was exposed to different concentrations (540, 2700, 5400 items/L) of 24.5 µm polystyrene microplastics (PS-MP) for 7 days. After exposure, oxidative stress, particle size reduction, and mortality were checked. No significant mortality was seen in any of the treatments, although changes were recorded in all enzymatic biomarkers analyzed. It was observed that throughout the ingestion and egestion of PS-MP by H. azteca, particles underwent intense fragmentation, presenting a final size up to 25.3% smaller than the initial size. The fragmentation over time (24, 72, 120, 168 h) was verified and the results showed a constant reduction in average particle size indicating that H. azteca are able to induce PS-MP fragmentation. This process may facilitate bioaccumulation and trophic particle transfer. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:06:02Z 2023-07-29T13:06:02Z 2023-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.aquatox.2023.106516 Aquatic Toxicology, v. 258. 1879-1514 0166-445X http://hdl.handle.net/11449/247091 10.1016/j.aquatox.2023.106516 2-s2.0-85151372442 |
url |
http://dx.doi.org/10.1016/j.aquatox.2023.106516 http://hdl.handle.net/11449/247091 |
identifier_str_mv |
Aquatic Toxicology, v. 258. 1879-1514 0166-445X 10.1016/j.aquatox.2023.106516 2-s2.0-85151372442 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aquatic Toxicology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
|
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046676723662848 |