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Short-term physiological and biometrical responses of Lepidium sativum seedlings exposed to PET-made microplastics and acid rain
Sara Pignattelli, Andrea Broccoli, Manuela Piccardo, Serena Felline, Antonio Terlizzi, Monia Renzi, 2021, original scientific article

Abstract: Plastics enter in terrestrial natural system primarily by agricultural purposes, while acid rain is the result of anthropogenic activities. The synergistic effects of microplastics and acid rain on plant growth are not known. In this study, different sizes of polyethylene terephthalate (PET) and acid rain are tested on Lepidium sativum, in two separate experimental sets. In the first one we treated plants only with PET, in the second one we used PET and acid rain together. In both experimentations we analyzed: i) plant biometrical parameters (shoot height, leaf number, percentage inhibition of seed germination, fresh biomass), and ii) oxidative stress responses (hydrogen peroxide; ascorbic acid and glutathione). Results carried out from our experiments highlighted that different sizes of polyethylene terephthalate are able to affect plant growth and physiological responses, with or without acid rain supplied during acute toxicity (6 days). Short description: This study showed that different sizes of PET microplastics affect physiological and biometrical responses of Lepidum sativum seedlings, with or without acid rain; roots and leaves responded differently
Keywords: Polyethylene terephthalate Acid rain Oxidative stress Biometrical response Lepidium sativum
Published in RUNG: 16.12.2020; Views: 2520; Downloads: 0
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