Effect of Winter Dormancy on Three-Dimensional Structure of the Mauthner Neurons in Perccottus glehni Fish

Authors

  • Irina M. Santalova Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
  • Nadezhda A. Penkova Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
  • Irina B. Mikheeva Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
  • Dmitry A. Moshkov Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia

DOI:

https://doi.org/10.15407/cryo25.02.114

Keywords:

hypometabolic state, fish winter dormancy, Perccottus glehni, morphology, Mauthner neurons, 3D reconstruction

Abstract

Investigation of the Mauthner neurons (MN) morphology in fish Perccottus glehni revealed a significant reduction in their volumes during dormancy, probably stipulated by a need to spare the body energy resources. The initial period of winter dormancy was characterized by a decrease in volumes of both main dendrites with no changes in somatic part of MN. During the terminal period of winter dormancy a total volume of soma and lateral dendrite reduced by 50%, and for the ventral one it did by 80%. It can be assumed that a decrease in integral neuronal volumes is associated with developing hypometabolism, as well as with a significantly decreased inputs of afferent information, entering MN from auditory and visual analyzers.


Probl Cryobiol Cryomed 2015; 25(2): 114-121

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Published

2015-06-20

How to Cite

Santalova, I. M., Penkova, N. A., Mikheeva, I. B., & Moshkov, D. A. (2015). Effect of Winter Dormancy on Three-Dimensional Structure of the Mauthner Neurons in Perccottus glehni Fish. Problems of Cryobiology and Cryomedicine, 25(2), 114–121. https://doi.org/10.15407/cryo25.02.114

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Section

Theoretical and Experimental Cryobiology