Location of immunoreactive leucine enkephalin in the digestive gland of the Mollusca Mizuhopecten yessoensis (Jay)
Varaksin, A.A.; Usheva, L.N.; Zverkov, I.V.
Arkhiv Anatomii Gistologii i Embriologii 98(1): 71-74
1990
ISSN/ISBN: 0004-1947 PMID: 2350253 Document Number: 352172
Distribution of leu-enkephalin-like peptides in the digestive gland of the Japanese scallop has been investigated by means of the indirect immunohistochemical method. The immunoreactive leu-enkephalin is revealed in supranuclear vacuoles of separate large secretory cells. These cells are situated in epithelium of the digestive tubules along the gland periphery. Their number is from 1-3 up to 5-6 per tubue section. The basal part of the cell and small apical vacuoles do not contain any products of the reaction. It is possible that in the bivalve molluscs, as in vertebrates, the leu-enkephalin-immunoreactive elements participate in regulation of digestion.