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Current issue: Volume 25, No. 2 (2025)
DOI: https://doi.org/10.59893/abud.25(2).004
Batjuka A., Škute N. 2025. Influence of Antimycin a on total protein content in different organs of wheat Triticum aestivum L. seedlings under heat stress. Acta Biol. Univ. Daugavp., 2025(2): 221-229.
Abstract
High temperature stress is one of the abiotic stresses that makes wheat crops vulnerable, has a significant impact on crop production worldwide, disrupts cellular homeostasis, and leads to severe retardation of growth and development. This research is aimed assessing the changes in total protein content in etiolated and grown under normal daylight conditions wheat (Triticum aestivum L.) seedlings in response to short-term (1 h) and prolonged (24 h) high temperatures (42 °C). In this study, we also examined the role of antimycin A as an activator of the alternative electron transport pathway on changes in total protein content. Results indicated a decrease in total protein content in functionally different organs of etiolated wheat seedlings (4-9%) and those grown under normal daylight conditions (5-11%) following both short-term and prolonged heat stress conditions compared to the control. Antimycin A and high temperature mitigated the decrease in total protein content in functionally different organs of wheat seedlings, suggesting that the activation of alternative electron transport pathway might prevent over-reduction of the electron transport chain, supporting cell homeostasis during abiotic stress conditions..
Keywords: antimycin A, alternative respiration, high temperature, Triticum aestivum L.
*Corresponding author: Anna Batjuka. Laboratory of Molecular Biology and Genetics, Institute of Life Science and Technologies, Daugavpils University, Parades Str. 1A, Daugavpils, Latvia, LV-5401. Email: anna.batjuka@du.lv
Nataļja Škute. Laboratory of Molecular Biology and Genetics, Institute of Life Science and Technologies, Daugavpils University, Parades Str. 1A, Daugavpils, Latvia, LV-5401
