The release sites and targets of nerve cells immunoreactive to RFamide - an ultrastructural study of Microstomum lineare and Diphyllobothrium dendriticum (Plathelminthes)
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The release sites and targets of nerve cells immunoreactive to RFamide - an ultrastructural study of Microstomum lineare and Diphyllobothrium dendriticum (Plathelminthes). / Reuter, Maria; Gustafsson, Margaretha K.S.; Lang, Jaana; Grimmelikhuijzen, Cornelis J.P.
In: Zoomorphology, Vol. 109, No. 6, 11.1990, p. 303-308.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - The release sites and targets of nerve cells immunoreactive to RFamide - an ultrastructural study of Microstomum lineare and Diphyllobothrium dendriticum (Plathelminthes)
AU - Reuter, Maria
AU - Gustafsson, Margaretha K.S.
AU - Lang, Jaana
AU - Grimmelikhuijzen, Cornelis J.P.
PY - 1990/11
Y1 - 1990/11
N2 - A detailed study of the ultrastructure and RFamide immunoreactivity (RF-IR) in the flatworms Microstomum lineare and Diphyllobothrium dendriticum has been made with the immunogold technique. The present ultrastructural study confirms the localization of RF-IR cells observed by light microscopic immunocytochemistry. The RF-IR is demonstrated in small, electron-dense vesicles in neuronal cell bodies and processes. RF-IR is not detected in the rough endoplasmatic reticulum or the Golgi system of the nerve cells. The targets of RF positive fibres are nerve fibres, muscles and glands. Gold labelling occurs in classic synapses, which points to a role in neurotransmission. RF-IR is also observed in nerve terminals lacking the characteristics of synapses. These release sites occur close to muscle fibres in the intestine and body musculature of M. lineare. Thus, an additional, paracrine action of the neuropeptide is suggested.
AB - A detailed study of the ultrastructure and RFamide immunoreactivity (RF-IR) in the flatworms Microstomum lineare and Diphyllobothrium dendriticum has been made with the immunogold technique. The present ultrastructural study confirms the localization of RF-IR cells observed by light microscopic immunocytochemistry. The RF-IR is demonstrated in small, electron-dense vesicles in neuronal cell bodies and processes. RF-IR is not detected in the rough endoplasmatic reticulum or the Golgi system of the nerve cells. The targets of RF positive fibres are nerve fibres, muscles and glands. Gold labelling occurs in classic synapses, which points to a role in neurotransmission. RF-IR is also observed in nerve terminals lacking the characteristics of synapses. These release sites occur close to muscle fibres in the intestine and body musculature of M. lineare. Thus, an additional, paracrine action of the neuropeptide is suggested.
UR - http://www.scopus.com/inward/record.url?scp=0001624829&partnerID=8YFLogxK
U2 - 10.1007/BF00803570
DO - 10.1007/BF00803570
M3 - Journal article
AN - SCOPUS:0001624829
VL - 109
SP - 303
EP - 308
JO - Zoomorphologie
JF - Zoomorphologie
SN - 0340-6725
IS - 6
ER -
ID: 370740803