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Immunoreactivity of the hermaphroditic gonad of the snail Helix aspersa Müller towards antibodies raised to fragments of pre-pro-opio-melanocortin

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Summary

Male and female germinal cells of the active hermaphroditic gonad of a snail (Helix aspersa Müller) reveal a positive immunoreactivity to some antibodies raised against biologically active peptides related to pre-pro-opiomelanocortin of vertebrates. All but the oldest cells of the different spermatogenetic and oogenetic stages are methionine-enkephalin-immunopositive, whereas only the young oocytes are α-MSH- and 17–39 ACTH-positive. Sometimes some male cells show an 1–24 ACTH positivity. Structures other than germinal cells also react with some antibodies: for example, the nurse cells are β-MSH-immunoreactive, the nerve fibers surrounding each acinus and the hermaphrodite duct are both 17–39 ACTH and FMRF amide positive.

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Authors and Affiliations

  1. Faculté des Sciences, Laboratoire de Zoologie et Embryologie, Besancon, France

    Claude-Roland Marchand

  2. INRA, Station de Physiologie, Nouzilly, Monnaie, France

    Maurice P. Dubois

Authors
  1. Claude-Roland Marchand
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  2. Maurice P. Dubois
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Marchand, CR., Dubois, M.P. Immunoreactivity of the hermaphroditic gonad of the snail Helix aspersa Müller towards antibodies raised to fragments of pre-pro-opio-melanocortin. Cell Tissue Res. 245, 337–341 (1986). https://doi.org/10.1007/BF00213940

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  • DOI: https://doi.org/10.1007/BF00213940

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