The Uptake of Sporopollenin Exine Capsules and Associated Bioavailability of Adsorbed Oestradiol in Selected Aquatic Invertebrates
| Autor: | Hanne Hetjens, Jeanette M. Rotchell, Andrew N. Boa, Paul Walker, Emma C. Chapman, Paul Kay, Susanne Heise, Sonja Faetsch, Aimilia Meichanetzoglou, Lieven Bervoets, Dean Moore, Sebastian Höss, J. Teuchies |
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| Rok vydání: | 2021 |
| Předmět: |
Lycopodium clavatum
Bioavailability Health Toxicology and Mutagenesis Daphnia magna Uptake Biological Availability Capsules Toxicology Dreissena Article Oestrogen Biopolymers Sporopollenin Gene expression Animals Ecotoxicology Caenorhabditis elegans Biology Estradiol biology Chemistry Pharmacology. Therapy General Medicine biology.organism_classification Carotenoids Pollution Daphnia Biochemistry Water Pollutants Chemical |
| Zdroj: | Bulletin of Environmental Contamination and Toxicology Bulletin of environmental contamination and toxicology |
| ISSN: | 1432-0800 0007-4861 |
| Popis: | Lycopodium clavatum sporopollenin exine capsules (SpECs) are known to both adsorb and absorb chemicals. The aim of the present work was to determine whether oestradiol (E2) is ‘bioavailable’ to bioindicator species, either pre-adsorbed to, or in the presence of, SpECs. SpEC uptake was confirmed for Daphnia magna and Dreissena bugensis. E2 levels varied among treatments for Caenorhabditis elegans though there was no relationship to SpEC load. E2 was not detected in D. bugensis tissues. Expression changes of general stress and E2-specific genes were measured. For C. elegans, NHR-14 expression suggested that SpECs modulate E2 impacts, but not general health responses. For D. magna, SpECs alone and with E2 changed Vtg1 and general stress responses. For D. bugensis, SpECS were taken up but no E2 or change in gene expression was detected after exposure to E2 and/or SpECs. The present study is the first to investigate SpECs and bound chemical dynamics. |
| Databáze: | OpenAIRE |
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