BIO Web Conf.
Volume 43, 2022International Scientific and Practical Conference “VAVILOV READINGS-2021” (VVRD 2021) dedicated to the 101st anniversary of the discovery of the law of homological series and the 134th anniversary of the birth of N. I. Vavilov
|Number of page(s)||8|
|Section||Modern Agrobiotechnologies for Ensuring Sustainable Development of Agriculture|
|Published online||19 January 2022|
Participation of low molecular weight antioxidants selenium and caffeic acid in the regulation of respiration in Solanum Tuberosum in hypothermic conditions
1 Orel State University named after I.S. Turgenev, 302026, 95, Komsomolskaya str., Orel, Russian Federation
2 All-Russian Scientific Research Institute for Breeding Fruit Crops, 302530, village Zhilina, Orel, Russian Federation
* Corresponding author:firstname.lastname@example.org
To study the effect of low molecular weight antioxidants on the respiration process, the content of auxins and abscisic acid, 15-day-old potato (Solanum tuberosum) tubers grown under laboratory conditions were sprayed with 5.8 μM sodium selenite solution or 0.1 mM caffeic acid solution. Control runners were treated with water. Hypothermia (-2 °C) simulating freezing was created for 2 hours. 21-day-old runners were analyzed. Under optimal temperature conditions, the studied antioxidants stimulated the respiration process, while selenite had a greater effect. Caffeic acid increased the maintenance respiration rate. Selenite and caffeic acid increased the auxin content in the runners. Selenite reduced the amount of abscisic acid, resulting in an increase in the indoleacetic acid/abscisic acid ratio. Under hypothermic conditions, caffeic acid significantly reduced the increase in respiration, and in the option with selenite, an insignificant stabilization of this process was noted with a greater decrease in indoleacetic acid/abscisic acid ration as compared with optimal conditions.
© The Authors, published by EDP Sciences, 2022
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