Sensitivity of regenerating and degenerating planarian photoreceptors to osmium fixation

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Abstract

The microvillous border of normal, developing and degenerating planarian retinal clubs was examined using osmium and glutaraldehyde fixation. Well-developed normal photoreceptors contained well preserved microvilli both after osmium and glutaraldehyde fixation. Osmium-fixed regenerating and degenerating retinal clubs showed serried vesicles and anastomosing tubules at the site of the microvillous border. After glutaraldehyde fixation, chains of vesicles were absent and the photoreceptor consisted of a regular array of microvilli. This difference indicates the selective sensitivity of the photoreceptor membranes in regenerating and degenerating retinal clubs to the action of osmium tetroxyde.

Original languageEnglish
Pages (from-to)165-173
Number of pages9
JournalZeitschrift für Zellforschung und Mikroskopische Anatomie
Volume73
Issue number2
DOIs
Publication statusPublished - Jun 1 1966

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ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology
  • Cell Biology

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