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The ultrastructure of lateral line sense organs in the juvenile salamander Ambystoma mexicanum

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Summary

Lateral line organs in young salamanders of the species Ambystoma mexicanum were investigated with scanning and transmission electron microscopy. They were found to differ from the lateral line organs in adult animals (1) by being lower, having short hair cells and supporting cells, (2) by the hair cells having areas of lateral contact, (3) by the occasional presence, at the edge of the organ, of hair cells at an early developmental stage. Two types of nerve endings are seen: (1) afferent, and (2) less commonly, efferent vesiculated ones. Synaptic bodies have been seen in the cytoplasm without association to afferent synapses.

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References

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Flock, Å., Jørgensen, J.M. The ultrastructure of lateral line sense organs in the juvenile salamander Ambystoma mexicanum . Cell Tissue Res. 152, 283–292 (1974). https://doi.org/10.1007/BF00223950

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Key words

  • Sense organ
  • Lateral line
  • Synapses
  • Ambystoma mexicanum
  • Electron microscopy