Novel organelle associations in photoreceptors of a serpulid polychaete worm

Tissue Cell. 1984;16(6):951-6. doi: 10.1016/0040-8166(84)90074-0.


Cerebral and branchial eyes of serpulid polychaetes have been studied by electron microscopy for the first time. In one species both eye types possess a novel ultrastructure. The receptor cells of the simple cerebral ocelli are rhabdomeric and display a close structural and functional relationship between ciliary rootlets and mitochondria. The receptors of the compound branchial eyes contain both a rhabdom and a stack of photosensitive ciliary membranes.

MeSH terms

  • Animals
  • Brain / ultrastructure
  • Cell Membrane / ultrastructure
  • Cilia / ultrastructure
  • Cytoplasm / ultrastructure
  • Eye / ultrastructure
  • Microscopy, Electron
  • Mitochondria / ultrastructure
  • Photoreceptor Cells / ultrastructure*
  • Polychaeta / ultrastructure*