Histopathological and molecular effects of microplastics in Eisenia andrei Bouché.

Autor: Rodriguez-Seijo A; Department of Plant Biology and Soil Science, Universidade de Vigo, As Lagoas, Marcosende, 36310 Vigo, Spain., Lourenço J; Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal., Rocha-Santos TAP; Department of Chemistry & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal., da Costa J; Department of Chemistry & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal., Duarte AC; Department of Chemistry & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal., Vala H; Agrarian School of Viseu, Polytechnic Institute of Viseu. Viseu, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB and Centre for Studies in Education, and Health Technologies (CI&DETS), Portugal., Pereira R; Department of Biology, Faculty of Sciences of the University of Porto & CIIMAR - Interdisciplinary Centre of Marine and Environmental Research & GreenUP/CITAB-UP, Porto, Portugal. Electronic address: ruth.pereira@fc.up.pt.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2017 Jan; Vol. 220 (Pt A), pp. 495-503. Date of Electronic Publication: 2016 Oct 13.
DOI: 10.1016/j.envpol.2016.09.092
Abstrakt: The ocean has been assumed as the main sink of microplastics (MPs), however, soils may also receive MPs from different sources and through different pathways, which may affect the biota and their role in soil functions. To the best of our knowledge, only one study, until now, reported the effects of MPs on the survival and fitness of soil organisms (Lumbricus terrestris). In our study, epigeic earthworms, of the species E. andrei, were exposed to different concentrations of MPs (0, 62.5, 125, 250, 500 and 1000 mg/kg soil dw ) in an OECD artificial soil and tested for reproduction, survival and growth of adults, following a standard protocol. The size of the polyethylene MPs to which earthworms were exposed ranged between 250 and 1000 μm. No significant effects were recorded on survival, number of juveniles and, in the final weight of adult earthworms after 28d of exposure, to the different concentrations of MPs. Nevertheless, FTIR-ATR of earthworms and histopathological analysis of the gut provided evidences of damages and immune system responses to MPs.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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