Polystyrene nanoparticles induce concerted response of plant defense mechanisms in plant cells.

Autor: Adamczyk S; Natural Resources Institut Finland (Luke), Latokartanonkaari 9, 00790, Helsinki, Finland. Sylwia.Adamczyk@luke.fi., Chojak-Koźniewska J; Plant Breeding and Acclimatization Institute - National Research Institute, Radzikow, 05-870, Blonie, Poland., Oleszczuk S; Plant Breeding and Acclimatization Institute - National Research Institute, Radzikow, 05-870, Blonie, Poland., Michalski K; Plant Breeding and Acclimatization Institute - National Research Institute, Radzikow, 05-870, Blonie, Poland., Velmala S; Natural Resources Institut Finland (Luke), Latokartanonkaari 9, 00790, Helsinki, Finland., Zantis LJ; Institute of Environmental Sciences, Leiden University, P.O. Box 9518, 2300 RA, Leiden, The Netherlands., Bosker T; Institute of Environmental Sciences, Leiden University, P.O. Box 9518, 2300 RA, Leiden, The Netherlands.; Leiden University College, Leiden University, P.O. Box 13228, 2501 EE, The Hague, The Netherlands., Zimny J; Plant Breeding and Acclimatization Institute - National Research Institute, Radzikow, 05-870, Blonie, Poland., Adamczyk B; Natural Resources Institut Finland (Luke), Latokartanonkaari 9, 00790, Helsinki, Finland., Sowa S; Plant Breeding and Acclimatization Institute - National Research Institute, Radzikow, 05-870, Blonie, Poland.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Dec 16; Vol. 13 (1), pp. 22423. Date of Electronic Publication: 2023 Dec 16.
DOI: 10.1038/s41598-023-50104-5
Abstrakt: Recent advances in knowledge suggest that micro- and nanoplastics pose a threat to plant health, however, the responses of plants to this stressor are not well-known. Here we examined the response of plant cell defence mechanisms to nanoparticles of commonly used plastic, polystyrene. We used plant cell cultures of widely cultivated plants, the monocots wheat and barley (Triticum aestivum L., Hordeum vulgare L.) and the dicots carrot and tomato (Daucus carota L., Solanum lycopersicum L.). We measured the activities of enzymes involved in the scavenging of reactive oxygen species and nonenzymatic antioxidants and we estimated potential damages in plant cell structures and functioning via lipid peroxidation and DNA methylation levels. Our results demonstrate that the mode of action of polystyrene nanoparticles on plant cells involves oxidative stress. However, the changes in plant defence mechanisms are dependent on plant species, exposure time and nanoplastic concentrations. In general, both monocots showed similar responses to nanoplastics, but the carrot followed more the response of monocots than a second dicot, a tomato. Higher H 2 O 2 , lipid peroxidation and lower enzyme activities scavenging H 2 O 2 suggest that tomato cells may be more susceptible to polystyrene-induced stress. In conclusion, polystyrene nanoplastics induce oxidative stress and the response of the plant defense mechanisms involving several chain reactions leading to oxidoreductive homeostasis.
(© 2023. The Author(s).)
Databáze: MEDLINE
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