Dipeptides Beta- L-Aspartyl-Serine and Beta-L-Aspartyl-Proline in Memory Regulation in the Honeybee

We report a comparative analysis of the effect of alpha- and beta- isomers of the dipeptides aspartyl-serine and aspartyl-proline on the ability of honeybees to retain the conditioned food reflex to olfactory cues in their short-term/long-term memory. Stimulatory/inhibitory effects of the alpha-dipe...

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Veröffentlicht in:Journal of evolutionary biochemistry and physiology 2019-03, Vol.55 (2), p.124-130
Hauptverfasser: Chalisova, N. I., Zachepilo, T. G., Kamyshev, N. G., Lopatina, N. G.
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Sprache:eng
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Zusammenfassung:We report a comparative analysis of the effect of alpha- and beta- isomers of the dipeptides aspartyl-serine and aspartyl-proline on the ability of honeybees to retain the conditioned food reflex to olfactory cues in their short-term/long-term memory. Stimulatory/inhibitory effects of the alpha-dipeptides on memory processes are confined to the concentration range of 10 -6 –10 -8 M. In contrast, beta-dipeptides exert stimulatory/inhibitory effects on memory not only within the same range but also at ultra-low (pico- and femtomolar) concentrations. At concentrations of 10 -9 –10 -11 M, beta-dipeptides have no effect on the characteristics under study (“silence zone”). Thus, we revealed fundamental differences in the effects of alpha- and beta- dipeptide isomers on the memory regulation.
ISSN:0022-0930
1608-3202
DOI:10.1134/S0022093019020054