Gold nanoparticles as adaptogens increazing the freezing tolerance of wheat seedlings.

Autor: Venzhik Y; K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, 127276, Russia. jul.venzhik@gmail.com., Deryabin A; K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, 127276, Russia., Popov V; K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, 127276, Russia., Dykman L; Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences, Saratov, 410049, Russia., Moshkov I; K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, 127276, Russia.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2022 Aug; Vol. 29 (36), pp. 55235-55249. Date of Electronic Publication: 2022 Mar 22.
DOI: 10.1007/s11356-022-19759-x
Abstrakt: The intensive development of nanotechnology led to the widespread application of various nanoparticles and nanomaterials. As a result, nanoparticles enter the environment and accumulate in ecosystems and living organisms. The consequences of possible impact of nanoparticles on living organisms are not obvious. Experimental data indicate that nanoparticles have both toxic and stimulating effects on organisms. In this study, we demonstrated for the first time that gold nanoparticles can act as adaptogens increasing plant freezing tolerance. Priming winter wheat (Triticum aestivum L., var. Moskovskaya 39, Poaceae) seeds for 1 day in solutions of gold nanoparticles (15-nm diameter, concentrations of 5, 10, 20, and 50 µg/ml) led to an increase in freezing tolerance of 7-day-old wheat seedlings. A relationship between an increase in wheat freezing tolerance and changes in some important indicators for its formation-growth intensity, the activity of the photosynthetic apparatus and oxidative processes, and the accumulation of soluble sugars in seedlings-was established. Assumptions on possible mechanisms of gold nanoparticles effects on plant freezing tolerance are discussed.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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