Mass spectrometric evidence for the deficiency in the dark-color-inducing hormone, [<script type="math/tex">His^{7}</script>]-corazonin in an albino strain of **Locusta migratoria** as well as for its presence in solitary **Schistocerca gregaria**

Baggerman, G.; Clynen, E.; Mazibur, R.; Veelaert, D.; Breuer, M.; De Loof, A.; Tanaka, S.; Schoofs, L.

doi:10.1002/ARCH.1046

Title

Mass spectrometric evidence for the deficiency in the dark-color-inducing hormone, [ $His^{7}$ ]-corazonin in an albino strain of **Locusta migratoria** as well as for its presence in solitary **Schistocerca gregaria**

Author

Baggerman, G.

Clynen, E.

Mazibur, R.

Veelaert, D.

Breuer, M.

De Loof, A.

Tanaka, S.

Schoofs, L.

Abstract

A factor present in the brain and corpus cardiacum responsible for the induction of dark colour in Locusta migratoria was recently isolated and identified from the corpora cardiaca of normally pigmented locusts. The purification of this factor, designated as [His(7)]-corazonin was monitored using an albino mutant from a laboratory colony of an Okinawa (Japan) strain. In this study, we provide unequivocal mass spectrometric evidence that the brain and the corpora cardiaca of this albino Locusta mutant are deficient in [His(7)]-corazonin. Previously, [His(7)]-corazonin was shown to be responsible for the induction of dark body colour patterns as observed in crowded locusts. Using nanoflow-liquid chromatography-mass spectrometry, we demonstrated that this dark colour-inducing hormone is, however, present in the corpora cardiaca of solitary locusts (Schistocerca gregaria). (C) 2001 Wiley-Liss, Inc.

Language

English

Source (journal)

Archives of insect biochemistry and physiology. - New York

Publication

New York : 2001

ISSN

0739-4462

DOI

10.1002/ARCH.1046

Volume/pages

47 :3 (2001) , p. 150-160