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Physiological responses of garden cress (L. sativum) to different types of microplastics
Sara Pignattelli, Andrea Broccoli, Monia Renzi, 2020, original scientific article

Abstract: In this study, for the first time, acute and chronic toxicity caused by four different kinds of microplastics: polypropylene (PP), polyethylene (PE), polyvinylchloride (PVC), and a commercial mixture (PE + PVC) on Lepidium sativum were evaluated. Parameters considered were: i) biometric parameters (e.g. percentage inhibition of seed germination, plant height, leaf number and fresh biomass productions); and ii) oxidative stress (e.g. levels of hydrogen peroxide, glutathione, and ascorbic acid). On plants exposed to chronic stress chlorophylls, carotenoids, aminolaevulinic acid, and proline productions were, also, evaluated. PVC resulted the most toxic than other plastic materials tested. This study represents the first paper highlighting microplastics are able to produce oxidative burst in tested plants and could represent an important starting point for future researches on biochemical effects of microplastic in terrestrial environments such as agroecosystems.
Found in: ključnih besedah
Keywords: Polypropylene Polyethylene Polyvinylchloride Plastic packaging Microplastics Plant exposure
Published: 24.04.2020; Views: 1254; Downloads: 0
.pdf Fulltext (5,55 MB)

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