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Title
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Presence of []-corazonin in the central nervous system of a newly isolated albino strain of **Schistocerca gregaria** (Orthoptera : Acrididae) : mass spectrometric and immunocytochemical evidence
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Author
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Abstract
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| An inbred strain of a newly isolated spontaneous albino mutant of Schistocerca gregaria (Forsk.) was examined for the presence of the neuropeptide [His(7)]-corazonin by immunocytochemical and mass spectrometric methods. It was concluded that this peptide is definitely present in a limited number of neurosecretory cells in the pars lateralis as well as in the corpora cardiaca (CC). Injection of either synthetic [His(7)]-corazonin or of extracts of CC of the normal coloured phenotype of S. gregaria failed to induce darkening of the cuticle, while albino Locusta migratoria, used as a positive control, turned dark. The conclusion is that the cause of albinism in the new S. gregaria albino is probably due to a defect in the receptor system for [His(7)]-corazonin or in the biosynthetic pathway of melanin. |
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Language
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English
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Source (journal)
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European journal of entomology / Euromonitor
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Publication
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2003
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ISSN
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1210-5759
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DOI
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10.14411/EJE.2003.068
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Volume/pages
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100
:3
(2003)
, p. 455-458
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ISI
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000184932700018
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Full text (Publisher's DOI)
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