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>Immunoreactivity of the hermaphroditic gonad of the snailHelix aspersaMüller towards antibodies raised to fragments of pre-pro-opio-melanocortin
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Immunoreactivity of the hermaphroditic gonad of the snailHelix aspersaMüller towards antibodies raised to fragments of pre-pro-opio-melanocortin
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机译：Immunoreactivity of the hermaphroditic gonad of the snailHelix aspersaMüller towards antibodies raised to fragments of pre-pro-opio-melanocortin
Male and female germinal cells of the active hermaphroditic gonad of a snail (Helix aspersaMüller) 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
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