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Ecotoxicity of nanosilver on cladocerans and the role of algae provision.
Andrade, Victoria Soledad; Ale, Analía; Antezana, Pablo Edmundo; Desimone, Martín Federico; Cazenave, Jimena; Gutierrez, María Florencia.
Afiliação
  • Andrade VS; Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina. vandrade@inali.unl.edu.ar.
  • Ale A; Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina.
  • Antezana PE; Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Instituto de La Química Y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia Y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina.
  • Desimone MF; Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Instituto de La Química Y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia Y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina.
  • Cazenave J; Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina.
  • Gutierrez MF; Departamento de Ciencias Naturales, Facultad de Humanidades Y Ciencias, Universidad Nacional del Litoral (FHUC-UNL), Santa Fe, Argentina.
Environ Sci Pollut Res Int ; 30(10): 27137-27149, 2023 Feb.
Article em En | MEDLINE | ID: mdl-36378381
Silver nanoparticles (AgNPs) are applied in diverse industries due to their biocide and physicochemical properties; therefore, they can be released into aquatic systems, interact with environmental factors, and ultimately exert adverse effects on the biota. We analyzed AgNPs effects on Ceriodaphnia reticulata (Cladocera) through mortality and life-history traits, considering the influence of food (Tetradesmus obliquus, Chlorophyceae) presence and concentration. C. reticulata was exposed to AgNPs in acute (absence and two algae concentrations plus five AgNPs treatments) and chronic assays (two algae concentrations plus three AgNPs treatments). AgNPs did not affect algae flocculation but increased Ag+ release, being these ions less toxic than AgNPs (as proved by the exposure to AgNO3). A reduction in AgNPs acute toxicity was observed when algae concentration increased. Acute AgNP exposure decreased C. reticulata body size and heart rate. The chronic AgNP exposure reduced C. reticulata molt number, growth, heart rate, and neonate size:number ratio, being these effects mitigated at the highest algae concentration. Increases in relative size and number of neonates were observed in AgNP treatments suggesting energy trade off. The increased Ag+ release with food presence suggests that the AgNP-algae interaction might be responsible of the decreased toxicity. Although algae reduced AgNP toxicity, they still exerted adverse effects on C. reticulata below predicted environmental concentrations. Since algae presence reduces AgNP effects but increases Ag+ release, studies should be continued to provide evidence on their toxicity to other organisms.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cladocera / Nanopartículas Metálicas / Clorofíceas Tipo de estudo: Prognostic_studies Limite: Animals / Humans / Newborn Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Argentina País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cladocera / Nanopartículas Metálicas / Clorofíceas Tipo de estudo: Prognostic_studies Limite: Animals / Humans / Newborn Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Argentina País de publicação: Alemanha