Title
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Identification of the gregarization-associated dark-pigmentotropin in locusts through an albino mutant
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Author
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Abstract
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In response to crowding, locusts develop characteristic black patterns that are well discernible in the gregarious phase at outbreaks. We report here a dark-color-inducing neuropeptide (dark-pigmentotropin) from the corpora cardiaca of two plague locusts, Schistocerca gregaria and Locusta migratoria, The chromatographic isolation of this neuropeptide,vas monitored by using a bioassay with an albino mutant of L. migratoria. The neurohormone, consisting of 11 amino acids, is identical to [His(7)] corazonin, previously isolated front corpora cardiaca of another acridid without known function. The present results show that even in isolated (solitary) nymphs, [His(7)] corazonin induces gregarious black patterns, Its primary structure shows some similarity with the vertebrate melanophore stimulating hormone. |
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Language
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English
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Source (journal)
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Proceedings of the National Academy of Sciences of the United States of America. - Washington, D.C.
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Publication
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Washington, D.C.
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1999
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ISSN
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0027-8424
[Print]
1091-6490
[Online]
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DOI
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10.1073/PNAS.96.12.7083
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Volume/pages
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96
:12
(1999)
, p. 7083-7087
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ISI
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000080842200091
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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