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Molt-inhibiting hormone immunoreactive neurons in the eyestalk neuroendocrine system of the blue crab, Callinectes sapidus.
Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Institute of Zoophysiology, University of Bonn, Germany.ORCID iD: 0000-0001-7815-4868
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2001 (English)In: Arthropod structure & development, ISSN 1467-8039, E-ISSN 1873-5495, Vol. 30, no 1, 69-76 p.Article in journal (Refereed) Published
Abstract [en]

The production of ecdysteroid molting hormones by crustacean Y-organs is negatively regulated by a neuropeptide, molt-inhibiting hormone. It is generally agreed that molt-inhibiting hormone is produced and released by the eyestalk neuroendocrine system. In the present study, immunocytochemical methods were used to detect molt-inhibiting hormone immunoreactive neurons in eyestalk ganglia of the blue crab, Callinectes sapidus. The primary antiserum used was generated against molt-inhibiting hormone of the green shore crab, Carcinus maenas. A preliminary Western blot analysis indicated the antiserum binds molt-inhibiting hormone of Callinectes sapidus. Using confocal and conventional immunofluorescence microscopy, molt-inhibiting hormone immunoreactivity was visualized in whole mounts and thin sections of Callinectes sapidus eyestalk ganglia. Immunoreactivity was detected in 15-25 neurosecretory cell bodies in the medulla terminalis X-organ, their associated axons and collateral branches, and their axon terminals in the neurohemal sinus gland. The cellular organization of molt-inhibiting hormone immunoreactive neurons in blue crabs is generally similar to that reported for other crab species. The combined results suggest the cellular structure of the molt-inhibiting hormone neuroendocrine system is highly conserved among brachyurans.

Place, publisher, year, edition, pages
2001. Vol. 30, no 1, 69-76 p.
Keyword [en]
Molt-inhibiting hormone; X-organ; Sinus gland; Neurosecretory cell; Neuroendocrine; Callinectes sapidus
Identifiers
URN: urn:nbn:se:su:diva-26637DOI: 10.1016/S1467-8039(01)00024-XPubMedID: 18088946OAI: oai:DiVA.org:su-26637DiVA: diva2:210788
Available from: 2009-04-06 Created: 2009-04-06 Last updated: 2014-10-13Bibliographically approved

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