0394240 - BC 2014 RIV DE eng J - Článek v odborném periodiku
Košťál, Vladimír - Rozsypal, Jan - Pech, P. - Zahradníčková, Helena - Šimek, Petr
Physiological and biochemical responses to cold and drought in the rock-dwelling pulmonate snail, Chondrina avenacea.
Journal of Comparative Physiology. B - Biochemical Systematic and Environmental Physiology. Roč. 183, č. 6 (2013), s. 749-761. ISSN 0174-1578. E-ISSN 1432-136X
Grant CEP: GA ČR GA206/07/0269; GA MZd(CZ) NT11513
Grant ostatní: GA JU(CZ) 04-062/2011/P
Institucionální podpora: RVO:60077344
Klíčová slova: Mollusca * estivation * hibermation
Kód oboru RIV: ED - Fyziologie
Impakt faktor: 2.530, rok: 2013 ; AIS: 0.74, rok: 2013
Web výsledku:
http://link.springer.com/content/pdf/10.1007%2Fs00360-013-0749-0.pdf

DOI: https://doi.org/10.1007/s00360-013-0749-0

The pulmonate snail Chondrina avenacea lives on exposed rock walls where it experiences drastic daily and seasonal fluctuations of abiotic conditions and food availability. We found that tolerance to dry conditions was maintained at a very high level throughout the year and was mainly based on the snails’ ability to promptly enter into estivation (quiescence) whenever they experienced drying out of their environment. The metabolic suppression probably included periods of tissue hypoxia and anaerobism as indicated by accumulation of typical end products of anaerobic metabolism: lactate, alanine and succinate. The seasonally highest levels of supercooling capacity, and the highest tolerance to subzero temperatures, were tightly linked to hibernation (diapause). Hibernating snails did not survive freezing of their body fluids and instead relied on supercooling strategy which allowed them to survive when air temperatures dropped to as low as -21ºC.
Trvalý link: http://hdl.handle.net/11104/0223234