Ultrastructural features of the epidermis of the planarian Artioposthia triangulata (Dendy)

C. McGee, Ian Fairweather, R.P. Blackshaw

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The epidermis of the land planarian Arthioposthia triangulata was examined by scanning and transmission electron microscopy. This investigation revealed that the flatworm was covered entirely with cilia and was especially densely populated on the ventral surface. In all regions the epidermis consisted of a one-layered columnar epithelium resting on a prominent basement membrane, but lacking a terminal web. Various secretions were found in the epidermis together with epidermal rhabdoids. Below the basement membrane other secretory material was visible and this included the cytoplasmic lamellated granules and adenal rhabdites. The basement membrane consisted of fibrils with a beaded appearance and these were arranged parallel to the epidermal layer but did not display cross-banding. The secretory cells above and below the basement membrane were compared and their products characterized on the basis of shape, size and location. Their possible function is discussed.
Original languageEnglish
Pages (from-to)15-24
Number of pages10
JournalHydrobiologia
Volume347
Publication statusPublished - 1997

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