Fine structure of photoreceptor cells in the earthworm, Lumbricus terrestris

P. Röhlich, B. Aros, Sz Virágh

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Photoreceptor cells in the epidermis and nerve branches of the prostomium and in the cerebral ganglion of Lumbricus terrestris were investigated with the electron microscope. The photoreceptor cell is similar to the visual cell of Hirudo by having a central intracellular cavity (phaosome) filled with microvilli. Besides microvilli, several sensory cilia can also be found in the phaosome but they are structurally independent of the microvilli. A gradual branching of the phaosome cavity into smaller cavities makes its sectional profile extremely labyrinthic. Flattened smooth-surfaced cisternae in stacks of 2 to 5 are frequently observed around the phaosome. Characteristic constituents of the cytoplasm are vesicles and vacuoles filled with a substance of varying density. The photoreceptor cell is covered by glial cells or by their processes which at many places deeply invaginate the cell surface (trophospongium).

Original languageEnglish
Pages (from-to)345-357
Number of pages13
JournalZeitschrift für Zellforschung und Mikroskopische Anatomie
Volume104
Issue number3
DOIs
Publication statusPublished - Sep 1970

Fingerprint

Oligochaeta
Photoreceptor Cells
Microvilli
Electron microscopes
Cilia
Vacuoles
Epidermis
Neuroglia
Ganglia
Cytoplasm
Electrons

Keywords

  • Electron microscopy
  • Lumbricus
  • Photoreceptor

ASJC Scopus subject areas

  • Anatomy
  • Clinical Biochemistry
  • Cell Biology
  • Medicine(all)

Cite this

Fine structure of photoreceptor cells in the earthworm, Lumbricus terrestris. / Röhlich, P.; Aros, B.; Virágh, Sz.

In: Zeitschrift für Zellforschung und Mikroskopische Anatomie, Vol. 104, No. 3, 09.1970, p. 345-357.

Research output: Contribution to journalArticle

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