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Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia : a meta-analysis

Title data

Salomon, Sophia ; Grubmüller, Eric ; Kropf, Philipp ; Nickl, Elisa ; Rühl, Anna ; Weigel, Selina ; Becker, Felix ; Antonio Vital, Ana Leticia ; Laforsch, Christian ; Schott, Matthias ; Mair, Magdalena:
Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia : a meta-analysis.
In: Microplastics and Nanoplastics. Vol. 4 (2024) . - 11.
ISSN 2662-4966
DOI: https://doi.org/10.1186/s43591-024-00088-4

Official URL: Volltext

Project information

Project title:
Project's official title
Project's id
SFB 1357 Mikroplastik
391977956

Project financing: Deutsche Forschungsgemeinschaft
Andere
DEAL

Related research data

Abstract in another language

Effects of micro- and nanoplastic particles (MNP) on organisms have been increasingly reported in recent years, with a large number of studies conducted on water fleas of the genus Daphnia. Most of the available studies used pristine particles that have not been exposed to the environment or to organic substances. In natural environments, however, organic substances like dissolved organic matter (DOM) attach to the MNP, forming an ecocorona on the particles’ surface. How the formation of an ecocorona influences MNP toxicity is still uncertain. While some studies suggest that DOM can mitigate the negative effects of MNP on organisms, other studies did not find such associations. In addition, it is unclear whether the DOM attached to the particles’ surface attenuates the effects of MNP directly or whether co-exposure with DOM solved in the medium attenuates MNP toxicity indirectly, for instance by increasing Daphnia‘s resilience to stressors in general. To draw more solid conclusions about the direction and size of the mediating effect of DOM on MNP-associated immobilization in Daphnia spp., we synthesized evidence from the published literature and compiled 305 data points from 13 independent studies. The results of our meta-analysis show that the toxic effects of MNP are likely reduced in the presence of certain types of DOM in the exposure media. We found similar mediating effects when MNP were incubated in media containing DOM before the exposure experiments, although to a lesser extent. Future studies designed to disentangle the effects of DOM attached to the MNP from the general effects of DOM in the exposure medium will contribute to a deeper mechanistic understanding of MNP toxicity in nature and enhance the reliability of MNP risk assessment.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Water flea; microplastics; nano-plastic; biofilm; ecocorona; mortality; immobilization; ecotoxicology
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I > Chair Animal Ecology I - Univ.-Prof. Dr. Christian Laforsch
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Ecology and the Environmental Sciences
Research Institutions > Central research institutes
Research Institutions > Central research institutes > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions > Collaborative Research Centers, Research Unit > SFB 1357 - MIKROPLASTIK
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 540 Chemistry
500 Science > 570 Life sciences, biology
Date Deposited: 25 Jun 2024 07:44
Last Modified: 25 Jun 2024 14:25
URI: https://eref.uni-bayreuth.de/id/eprint/89836