Научно-издательский центрDOI: 10.38006/00187-838-4.2024.295.296
С. В. Шеховцов, Н. А. Булахова, Ю. П. Центалович, Н. А. Осик, Е. Н. Мещерякова, Т. В. Полубоярова, Д. И. Берман
Институт биологических проблем Севера ДВО РАН, Магадан
ФИЦ Институт цитологии и генетики СО РАН, Новосибирск
Международный томографический центр СО РАН, Новосибирск
The Pallas’ spadefoot Pelobates vespertinus exhibits resilience to harsh winter conditions by burrowing up to a depth of 2 meters underground. Here we aimed to explore the metabolome of the Pallas’ spadefoot after a month-long exposure to air hypoxia (approximately 2% O2 content). Surprisingly, our findings revealed minimal differences when compared to the control sample. There was only a slight increase in the concentrations of glycolysis end products and no detectable accumulation of succinate. These results align with a previous investigation that indicated the Pallas’ spadefoot possesses relatively modest glycogen and fat reserves prior to winter compared to other frog species. It appears that this species conserves energy during the winter period by minimizing its metabolic activity. These findings support the hypothesis that the survival of P. vespertinus under hypoxic conditions primarily relies on metabolic suppression rather than relying on substantial energy reserves.