New Plant Growth Stimulants Based on Water-Soluble Nanoparticles of N-Substituted Monoamino-Acid Derivatives of Fulleren
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LEX SYSTEMS BIOPHYSICS
New Plant Growth Stimulants Based on Water-Soluble Nanoparticles of N-Substituted Monoamino-Acid Derivatives of Fullerene C60 and the Study of Their Mechanisms of Action V. A. Volkova, *, O. V. Yamskovab, M. V. Voronkova, D. V. Kurilovc, V. S. Romanovab, V. M. Misina, I. N. Gagarinad, N. E. Pavlovskayad, I. V. Gorkovad, and A. V. Lushnikovd aEmanuel
Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334 Russia Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 119991 Russia c Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia dParakhin Orel State Agrarian University, Orel, 302019 Russia *e-mail: [email protected]
b
Received November 22, 2019; revised May 12, 2020; accepted June 8, 2020
Abstract—Growth-stimulating effects of water-soluble nanoparticles of N-substituted monoaminoacid derivatives of fullerene C60 (L- and D-alanine, L- and D-valine, L- and D-aspartic acid, β-alanine, and γ-aminobutyric and ε-aminocaproic acids in potassium salt form) were investigated. It was found that the nanoparticle size and relative antiradical activity of fullerene derivatives were factors that influence such physiological parameters of field peas as seed germination rate, germination energy, and root growth capacity. It was shown that the relative antiradical activity of nanoparticles in the selected group of compounds was determined by the total surface area of the nanoparticles regardless of the structure of the amino-acid substituent. The possibility of using amino-acid derivatives of fullerene as effective growth stimulating substances has been demonstrated. A dose-dependent effect of N-(monohydrofullerenyl)-D-alanine potassium salt in a concentration range of 10–9–10–11 M on the seed-germination rate and germination energy of field peas has been demonstrated. Keywords: fullerene, nanoparticles, antioxidants, growth stimulants, field peas DOI: 10.1134/S0006350920040272
INTRODUCTION Crop productivity increase is one of the key challenges of modern agrochemistry. Preference is given to chemicals that are safe for the environment. The use of nanomaterials, which due to their dimensional characteristics have unique properties, is of particular interest. An important place among such materials is given to carbon nanostructures, in particular fullerene C60, as well as its derivatives. In this regard, it is important to study the mechanisms of the growthstimulating action of fullerene C60 and its derivatives. There are conflicting data in the literature on the effects of fullerene derivatives on the physiology of plants. As an example, it was found that functional fullerene C60 derivatives, such as fullerenols, have a positive effect on hypocotyl growth in Arabidopsis (Arabidopsis thaliana L.) [1]. It was assumed that the positive effect of these compounds on plants was associated with their antioxidant activity, namely, the abilAbbreviations: ROS, reactive oxygen species; FAAD, fullerene amino-acid derivati
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