Bulletin of Experimental Biology and Medicine

, Volume 149, Issue 2, pp 269–272

Morphological Peculiarities Statoconia in Statocysts of Terrestrial Pulmonary Snail Helix Lucorum

  • G. I. Gorgiladze
  • R. D. Bukia
  • M. T. Davitashvili
  • A. D. Taktakishvili
  • N. Sh. Gelashvili
  • E. L. Kalandarishvili
  • G. P. Satdykova
Article

DOI: 10.1007/s10517-010-0924-1

Cite this article as:
Gorgiladze, G.I., Bukia, R.D., Davitashvili, M.T. et al. Bull Exp Biol Med (2010) 149: 269. doi:10.1007/s10517-010-0924-1

Vast majority of statoconia in statocysts of Helix lucorum are of oval shape and have smooth surface. Each statoconium in its central part has a nucleus, a spherical mass of 1.5 μ in diameter, surrounded by concentric structures. Minority of statoconia are of subcircular, elongated, rectangular, triangular, irregular, and sometimes fanciful shape and are structured around several nuclei or around small statoconia consolidated by shared growth layers. Apart from statoconia, spherical formations lacking mineral composition of 0.3-2.5 μ in diameter were also found in the statocyst cavity. Similar formations were found in vacuoles of sensory cells of statocyst epithelial lining. It is hypothesized that statoconium nuclei and growth layers around them are of different origin: the nuclei are formed by statocyst sensory cells, while the mineral component is a result of activity of supporting cells.

Key Words

organ of equilibrium statocyst statokonia morphometry 

Copyright information

© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  • G. I. Gorgiladze
    • 1
  • R. D. Bukia
    • 2
  • M. T. Davitashvili
    • 2
  • A. D. Taktakishvili
    • 2
  • N. Sh. Gelashvili
    • 2
  • E. L. Kalandarishvili
    • 2
  • G. P. Satdykova
    • 3
  1. 1.Institute of and Biomedical ProblemsRussian Academy of SciencesMoscowRussia
  2. 2.Laboratory for Morphophysiology ProblemsI. Dzhavakhishvili State UniversityTbilisiGeorgia
  3. 3.N. K. Koltzov Institute of Developmental BiologyRussian Academy of SciencesMoscowRussia