Seasonal changes in cryoprotectants concentrations in Helix pomatia snails

• Autorzy: Nowakowska A. , Caputa M. , Rogalska J.
• Języki publikacji: EN

Abstrakty

EN

Terrestrial snails are often exposed to freezing. Therefore, we investigated seasonal shifts in hemolymph concentrations of cryoprotectants such as glycerol and glucose. We also investigated whether summer acclimation to cold and short-day photoperiod induced synthesis of cryoprotectants in Helix pomatia snails. Concentrations of the both cryoprotectants were elevated in winter and reduced in summer. These changes, however, were not correlated with shifts in liver glycogen content. Summer acclimation to cold (5°C) and short-day photoperiod evoked a selective increase in glycerol concentration. In conclusion, glycerol may play a role in adaptation of the snails to winter cold and glucose is rather unlikely to provide the cryoprotection.

Słowa kluczowe

EN

seasonal change; cryoprotectant; Helix pomatia; snail; land snail; overwintering; behavioural adaptation; acclimation; glycerol; glucose; glycogen

• Wydawca: -
• Czasopismo: Journal of Physiology and Pharmacology. Supplement
• Rocznik: 2006
• Tom: 57
• Numer: 8
• Opis fizyczny: p.93-105,fig.,ref.

Twórcy

autor

Nowakowska A.

• Nicolaus Copernicus University, 9 Gagarina Street, 87-100 Torun, Poland

autor

Caputa M.

autor

Rogalska J.