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Histochemical and ultrastructural studies on the salivary glands of Helix aspersa (Mollusca)
Author(s) -
Moreno F. J.,
Pi∼nero J.,
Hidalgo J.,
Navas P.,
AND J. Aijon,
LopezCampos J. L.
Publication year - 1982
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1982.tb03507.x
Subject(s) - biology , ultrastructure , mucin , endoplasmic reticulum , reticular connective tissue , reticulum , secretion , anatomy , epithelium , serous fluid , salivary gland , microbiology and biotechnology , biochemistry , genetics
A histochemical and ultrastructural study was carried out on the salivary glands of adult specimens of Helix aspersa. Histochemically four cell types were distinguished: mucocyte I, mucocyte II, pseudochromosome cell and protein cell. The first secretes neutral and acid mucins. Mucocyte II and pseudochromosome cells produce acid mucins and the protein cell secretes neutral mucins and proteins. The ultrastructural data for differentiating these four cell types is discussed. Mucocytes I have a characteristic arrangement of rough endoplasmatic reticulum and basal infoldings. Mucocytes II have pseudocrystalline formations in the rough endoplasmatic reticulum and intraluminary ducts. Pseudochromosome cells have typical granules with a reticular central zone. Protein cells have serous homogenous secretion. The epithelium of the salivary ducts is described.