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Different effects of Zn nanoparticles and ions on growth and cellular respiration in the earthworm Eisenia andrei after long-term exposure.
Ecotoxicology. 2021 Apr; 30(3):459-469.E

Abstract

In this study, the effects of zinc nanoparticles (ZnO-NPs) and ions (ZnCl2) on the mortality, growth, maturation, and cellular respiration of the earthworm Eisenia andrei were assessed. Earthworms were individually exposed for 98 days, starting from the juvenile stage, to soils contaminated with either ZnO-NPs or ZnCl2 (125, 250, 500 and 1000 mg Zn kg-1 dry weight (dw)). Exposure to the highest-concentration ionic treatments (500 and 1000 mg kg-1) caused 100% mortality, while for other treatments, mortality did not exceed 15% at the end of exposure. Compared to the control treatment, both 125-1000 mg kg-1 ZnO-NPs and 125 or 250 mg kg-1 ZnCl2 stimulated earthworm growth, which might be due to a hormetic effect. ZnO-NPs and ZnCl2 caused different responses at medium Zn concentrations (250 and 500 mg kg-1): earthworms exposed to ionic treatment at 250 mg kg-1 were characterized by a significantly lower growth constant, lower cellular respiration rate, later inflection point, and higher final body weight than those exposed to ZnO-NPs treatments at the same (250 mg kg-1) or twice as high (500 mg kg-1) nominal Zn concentrations. However, differences were not observed in all examined parameters between the studied forms when the highest-concentration ZnO-NPs treatment was compared with the lowest-concentration ionic treatment, which was likely due to the same levels of available Zn concentrations in those treatments. Overall, different growth and maturation strategies accompanied by pronounced differences in cellular respiration were adopted by earthworms exposed to low and medium levels of either ZnO-NPs or ZnCl2.

Authors+Show Affiliations

Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland. zuzanna.filipiak@alumni.uj.edu.pl.Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120, Kraków, Poland.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33616802

Citation

Filipiak, Zuzanna M., and Agnieszka J. Bednarska. "Different Effects of Zn Nanoparticles and Ions On Growth and Cellular Respiration in the Earthworm Eisenia Andrei After Long-term Exposure." Ecotoxicology (London, England), vol. 30, no. 3, 2021, pp. 459-469.
Filipiak ZM, Bednarska AJ. Different effects of Zn nanoparticles and ions on growth and cellular respiration in the earthworm Eisenia andrei after long-term exposure. Ecotoxicology. 2021;30(3):459-469.
Filipiak, Z. M., & Bednarska, A. J. (2021). Different effects of Zn nanoparticles and ions on growth and cellular respiration in the earthworm Eisenia andrei after long-term exposure. Ecotoxicology (London, England), 30(3), 459-469. https://doi.org/10.1007/s10646-021-02360-2
Filipiak ZM, Bednarska AJ. Different Effects of Zn Nanoparticles and Ions On Growth and Cellular Respiration in the Earthworm Eisenia Andrei After Long-term Exposure. Ecotoxicology. 2021;30(3):459-469. PubMed PMID: 33616802.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Different effects of Zn nanoparticles and ions on growth and cellular respiration in the earthworm Eisenia andrei after long-term exposure. AU - Filipiak,Zuzanna M, AU - Bednarska,Agnieszka J, Y1 - 2021/02/22/ PY - 2021/01/28/accepted PY - 2021/2/23/pubmed PY - 2021/4/28/medline PY - 2021/2/22/entrez KW - ETS activity KW - Ecotoxicology KW - Juvenile earthworm KW - Metal KW - Soil SP - 459 EP - 469 JF - Ecotoxicology (London, England) JO - Ecotoxicology VL - 30 IS - 3 N2 - In this study, the effects of zinc nanoparticles (ZnO-NPs) and ions (ZnCl2) on the mortality, growth, maturation, and cellular respiration of the earthworm Eisenia andrei were assessed. Earthworms were individually exposed for 98 days, starting from the juvenile stage, to soils contaminated with either ZnO-NPs or ZnCl2 (125, 250, 500 and 1000 mg Zn kg-1 dry weight (dw)). Exposure to the highest-concentration ionic treatments (500 and 1000 mg kg-1) caused 100% mortality, while for other treatments, mortality did not exceed 15% at the end of exposure. Compared to the control treatment, both 125-1000 mg kg-1 ZnO-NPs and 125 or 250 mg kg-1 ZnCl2 stimulated earthworm growth, which might be due to a hormetic effect. ZnO-NPs and ZnCl2 caused different responses at medium Zn concentrations (250 and 500 mg kg-1): earthworms exposed to ionic treatment at 250 mg kg-1 were characterized by a significantly lower growth constant, lower cellular respiration rate, later inflection point, and higher final body weight than those exposed to ZnO-NPs treatments at the same (250 mg kg-1) or twice as high (500 mg kg-1) nominal Zn concentrations. However, differences were not observed in all examined parameters between the studied forms when the highest-concentration ZnO-NPs treatment was compared with the lowest-concentration ionic treatment, which was likely due to the same levels of available Zn concentrations in those treatments. Overall, different growth and maturation strategies accompanied by pronounced differences in cellular respiration were adopted by earthworms exposed to low and medium levels of either ZnO-NPs or ZnCl2. SN - 1573-3017 UR - https://www.unboundmedicine.com/medline/citation/33616802/Different_effects_of_Zn_nanoparticles_and_ions_on_growth_and_cellular_respiration_in_the_earthworm_Eisenia_andrei_after_long_term_exposure_ L2 - https://doi.org/10.1007/s10646-021-02360-2 DB - PRIME DP - Unbound Medicine ER -