Journal
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
Volume 40, Issue 4, Pages 1123-1131Publisher
WILEY
DOI: 10.1002/etc.4952
Keywords
Multigenerational; Mixture; Daphnia magna; Silver nanoparticles; Glyphosate
Categories
Funding
- National Council for Scientific and Technological Development [302876/2019-7]
- Coordination of Improvement of Higher Education Personnel
- Santa Catarina University Scholarship Program
- Support Fund for Maintenance and Development of Higher Education
Ask authors/readers for more resources
The study identified multigenerational toxicological effects of a binary mixture of silver nanoparticles and glyphosate on Daphnia magna, affecting the survival, growth, reproduction, and age at first brood of the descendants. The mixture showed higher toxicity than individual compounds, sparking further research into the interaction of binary mixtures with organisms.
Multigenerational toxicological effects of a binary mixture of silver nanoparticles (AgNPs) with glyphosate were identified in Daphnia magna using acute and chronic toxicity tests. Acute toxicity interactions were analyzed with the Abbott method. In the chronic tests, the survival, growth, reproduction, and age at first brood were evaluated for the parents and the exposed (F1E) and non-exposed (F1NE) descendants. The scales tested for binary mixture, at the acute level, presented antagonistic and additive interactions, possibly associated with the complexation of the AgNPs by glyphosate. Multigenerational chronic effects related to the parameters, reproduction, and age at first brood were observed in the descendants tested with the individual compounds, with no recovery for F1E and F1NE. In organisms exposed to binary mixture, there was a delay in the age at first brood and also a significant change in the reproduction parameter, with a strong reduction for the parents, F1E, and F1NE, indicating a higher toxicity than the compounds tested individually. Although the results for acute interactions between AgNP and glyphosate did not provide clear evidence, multigenerational chronic binary mixture trials have resulted in unexpected toxicity compared with individual treatments, increasing the concerns associated with this co-exposure in other scenarios. Therefore, the interaction of binary mixture with the organisms merits further investigation and the results reported in the present study will be useful in this regard. Environ Toxicol Chem 2020;00:1-9. (c) 2020 SETAC
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available