Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (8)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by TAÏEB, N.
Right arrow Articles by VICENTE, N.
Right arrow Search for Related Content
PubMed
Right arrow Articles by TAÏEB, N.
Right arrow Articles by VICENTE, N.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

J. Moll. Stud. (1999), 65, 385-398
© The Malacological Society of London 1999

HISTOCHEMISTRY AND ULTRASTRUCTURE OF THE CRYPT CELLS IN THE DIGESTIVE GLAND OF APLYSIA PUNCTATA (CUVIER, 1803)

NADIRA TAÏEB and NARDO VICENTE

Centre d'Etude des Ressources Animales Marines. Faculté de St Jérôme, Case 341. 13397 Marseille Cedex, France

The crypt cells lining the Aplysia punctata digestive tubules comprise of three types of cell; calcium, excretory, and thin cells. The calcium cells play a role in osmoregulation, mineral storage, exocrine secretion, iron detoxification, and excretion processes. They possess well- developed microvilli and a basal labyrinth, suggesting a role in absorption. The Golgi apparatus is involved in the production of two main components of calcium spherules; the fibrillar material and mineralized granules. Golgi complex, rough endoplasmic reticulum (RER), ribosomes, and altered mitochondria are involved in the formation of calcium spherules. Secretory activity is indicated by the formation of dense granules containing iron and calcium salts. Lipofuscin pigment has been found in large concretions which may arise from cytoplasmic areas surrounded by endoplasmic reticulum, RER and Golgi tubules. There are three stages of excretory cells, called early, mature, and post-excretory cells. This study traces the development of granulofibrillar vacuoles up to the formation of the lipofuscin concretions and shows that excretory cells are in fact degenerating calcium cells. The fine structure of thin cells suggests that they are young calcium cells.

(Received 29 December 1997; accepted 15 November 1998)


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J MOLLUS STUDHome page
N. Dittbrenner, R. Lazzara, H.-R. Kohler, C. Mazzia, Y. Capowiez, and R. Triebskorn
Heat tolerance in Mediterranean land snails: histopathology after exposure to different temperature regimes
J. Mollus. Stud., February 1, 2009; 75(1): 9 - 18.
[Abstract] [Full Text] [PDF]

Home page
 J MOLLUS STUDHome page
O. Gros, L. Frenkiel, and D. Aldana Aranda
Structural analysis of the digestive gland of the queen conch Strombus gigas Linnaeus, 1758 and its intracellular parasites
J. Mollus. Stud., February 1, 2009; 75(1): 59 - 68.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.