The temperature sensitivity of memory formation and persistence is altered by cold acclimation in a pond snail.

The Journal of Experimental Biology
Maria FernellKen Lukowiak

Abstract

There are reports on the inability of inbred, laboratory-reared Lymnaea stagnalis to perform feeding and aerial respiration in the cold. It has also been suggested that laboratory-bred snails have an inability to perform aerial respiration in winter months in the laboratory. Here, we used an inbred, laboratory-reared strain of Lymnaea (the S-strain) to demonstrate that the snails are capable of performing those behaviours in a cold (4°C) environment after a 2 day acclimation period. In addition, the inbred snails were able to perform aerial respiration during winter months at room temperature (20°C) in the laboratory. The persistence of long-term memory (LTM) was extended for at least 4 weeks by placing S-strain snails into a 4°C environment following training. Typically, the cold block (CB) procedure (1 h at 4°C) immediately after a training session blocks LTM formation in the S-strain but not in a freshly collected strain. Four weeks at 4°C transformed the S-strain phenotype into one resisting the CB procedure. Thus, with a 4 week cold spell snails gain a resistance to the CB procedure, and that would explain why freshly collected snails are resistant to the procedure. However, we found that F1 progeny of a freshly collected ...Continue Reading

References

Nov 29, 2002·The Journal of Experimental Biology·Susan SanghaKen Lukowiak
Aug 23, 2003·Neurobiology of Learning and Memory·Susan SanghaKen Lukowiak
Jul 7, 2005·Behavioral Neuroscience·Susan SanghaKen Lukowiak
Jun 2, 2007·Neurobiology of Learning and Memory·Kara MartensKen Lukowiak
May 19, 2010·Behavioural Brain Research·Ken LukowiakSarah Dalesman
Sep 14, 2012·The Journal of Experimental Biology·Morgan Lee TeskeyKen Lukowiak
Dec 20, 2013·The Journal of Experimental Biology·Ken LukowiakSarah Dalesman
Nov 5, 2016·Neurobiology of Learning and Memory·Emily HughesKen Lukowiak
Mar 3, 2017·The Journal of Experimental Biology·Emily HughesKen Lukowiak
Apr 5, 2018·The Journal of Experimental Biology·Cailin M RothwellKen Lukowiak
Apr 26, 2018·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Shawn DoddKen Lukowiak
Jun 30, 2019·The Journal of Experimental Biology·Cailin M Rothwell, Ken Lukowiak
Nov 13, 2019·The Journal of Experimental Biology·Diana Kagan, Ken Lukowiak
Jun 21, 2020·Translational Psychiatry·Sarah AyashMarianne B Müller

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