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Main Title: Enchytraeus crypticus Avoid Soil Spiked with Microplastic
Author(s): Pflugmacher, Stephan
Huttunen, Johanna H.
Wolff, Marya-Anne von
Penttinen, Olli-Pekka
Kim, Yong Jun
Kim, Sanghun
Mitrovic, Simon M.
Esterhuizen-Londt, Maranda
Type: Article
Language Code: en
Abstract: Microplastics (MPs) of varying sizes are widespread pollutants in our environment. The general opinion is that the smaller the size, the more dangerous the MPs are due to enhanced uptake possibilities. It would be of considerably ecological significance to understand the response of biota to microplastic contamination both physically and physiologically. Here, we report on an area choice experiment (avoidance test) using Enchytraeus crypticus, in which we mixed different amounts of high-density polyethylene microplastic particles into the soil. In all experimental scenarios, more Enchytraeids moved to the unspiked sections or chose a lower MP-concentration. Worms in contact with MP exhibited an enhanced oxidative stress status, measured as the induced activity of the antioxidative enzymes catalase and glutathione S-transferase. As plastic polymers per se are nontoxic, the exposure time employed was too short for chemicals to leach from the microplastic, and as the microplastic particles used in these experiments were too large (4 mm) to be consumed by the Enchytraeids, the likely cause for the avoidance and oxidative stress could be linked to altered soil properties.
Issue Date: 10-Feb-2020
Date Available: 28-Apr-2020
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): microplastic
Enchytraeus crypticus
avoidance test
oxidative stress
glutathione S-transferase
Journal Title: Toxics
Publisher: MDPI
Publisher Place: Basel
Volume: 8
Issue: 1
Article Number: 10
Publisher DOI: 10.3390/toxics8010010
EISSN: 2305-6304
Appears in Collections:FG Baustoffe und Bauchemie » Publications

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