Acta Biologica Hungarica
Volume/Issue:
Volume 55: Issue 1-4
Functional morphology of the salivary gland of the snail, Helix pomatia: A histochemical and immunocytochemical study
Authors:
Zs. Pirger Department of Experimental Zoology, Balaton Limnological Research Institute, Hungarian Academy of Sciences P.O. Box 35, H-8237 Tihany, Hungary

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K. Elekes Department of Experimental Zoology, Balaton Limnological Research Institute, Hungarian Academy of Sciences P. O. Box. 35, H-8237 Tihany, Hungary

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T. Kiss Department of Experimental Zoology, Balaton Limnological Research Institute, Hungarian Academy of Sciences P.O. Box 35, H-8237 Tihany, Hungary

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Pages:
221–232
Online Publication Date:
22 Jul 2005
Publication Date:
01 May 2004
Article Category:
Research Article
DOI:
https://doi.org/10.1556/abiol.55.2004.1-4.27
Keywords:
Salivary gland - cystic cell - dividing cell - apoptosis - snail; Salivary gland - cystic cell - dividing cell - apoptosis - snail; Salivary gland - cystic cell - dividing cell - apoptosis - snail
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Functional morphology of Helix pomatia salivary gland cells was studied at light microscopic level by using different histochemical methods. Three cell types could be demonstrated in the salivary gland: mucocytes, granular and vacuolated cells. The distribution and the number of the different cell types were different in active and inactive snails. In active feeding animals, dilatated interlobular salivary ducts were observed, which were never present in inactive ones. In active animals an additional cell type, the cystic cell could also be observed. Periodic acid Schiff staining revealed both mucuos and serous elements in the salivary gland. Furthermore, hematoxyline-eosin staining indicated the occurrence of a cell layer with high mitotic activity in the acini. Applying immunohistochemical methods with monoclonal mouse anti-human Ki-67 clone, B56 and polyclonal rabbit anti-human Ki-67 antibodies, we also were able to demonstrate the occurrence of dividing cells in the salivary gland. Analysis of 1-2 µm semi-thin Araldite sections stained with toluidine-blue showed that the saliva can be released, in addition to possible exocytosis, by the lysis of cystic cells. Using an apoptosis kit, we could also establish that this process was due to rather an apoptotic than a necrotic mechanism. In the salivary gland of active snails, where an intensive salivation takes place, significantly more apoptotic cells occurred, if compared to that of inactive animals. It is suggested that programmed cell death may also be involved in the saliva release.

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Cover Acta Biologica Hungarica
Acta Biologica Hungarica
Print ISSN:
0236-5383
Online ISSN:
1588-256X

Senior editors

Editor(s)-in-Chief: Elekes, Károly

Editorial Board

    1. Csányi, Vilmos (Göd)
    1. Dudits, Dénes (Szeged)
    1. Falus, András (Budapest)
    1. Fischer, Ernő (Pécs)
    1. Gábriel, Róbert (Pécs)
    1. Gulya, Károly (Szeged)
    1. Gulyás, Balázs (Stockholm)
    1. Hajós, Ferenc (Budapest)
    1. Hámori, József (Budapest)
    1. Heszky, László (Gödöllő)
    1. Hideg, Éva (Szeged)
    1. E. Ito (Sanuki)
    1. Janda, Tibor (Martonvásár)
    1. Kavanaugh, Michael P. (Missoula)
    1. Kása, Péter (Szeged)
    1. Klein, Éva (Stockholm)
    1. Kovács, János (Budapest)
    1. Brigitte Mauch-Mani (Neuchâtel)
    1. Nässel, Dick R. (Stockholm)
    1. Nemcsók, János (Szeged)
    1. Péczely, Péter (Gödöllő)
    1. Roberts, D. F. (Newcastle-upon-Tyne)
    1. Sakharov, Dimitri A. (Moscow)
    1. Singh, Meharvan (Fort Worth)
    1. Sipiczky, Mátyás (Debrecen)
    1. Szeberényi, József (Pécs)
    1. Székely, György (Debrecen)
    1. Tari, Irma (Szeged)
    1. Vágvölgyi, Csaba (Szeged),
    1. L. Zaborszky (Newark)

 

Acta Biologica Hungarica
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H-8237 Tihany, Hungary
Phone: (36 87) 448 244 ext. 103
Fax: (36 87) 448 006
E-mail: elekes@tres.blki.hu

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Acta Biologica Hungarica
Language English
Size  
Year of
Foundation		 1950
Publication
Programme		 changed title
Volumes
per Year		  
Issues
per Year		  
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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ISSN 0236-5383 (Print)
ISSN 1588-256X (Online)

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