PMID: 12770068May 29, 2003Paper

Allatotropic activity in the brain of female Phormia regina (Diptera: Calliphoridae)

Journal of Insect Physiology
M TuJ G Stoffolano

Abstract

In Phormia regina, the rate of juvenile hormone (JH) synthesis rises rapidly after the ingestion of an adequate protein meal. In a previous publication we have localized the neurons containing Manduca sexta allatotropin (Mas-AT)-like substances in the brain of P. regina and demonstrated the allatotropic effect of synthetic Mas-AT in sugar-fed flies in vitro. In this current study, we examined the possible role of the brain of P. regina after the fly received a protein meal. In vitro studies showed that the brain releases, at 8 h after a protein meal, a factor(s) with a strong allatotropic effect. This factor(s) stimulates the corpus allatum (CA) to produce 6.9 times more juvenile hormones (JHs) than the control CA. Time course studies showed that the release of this allatotropic factor(s) is temporally controlled. Only the brains collected from flies at 6 and 8 h after the onset of a liver meal release allatotropic factor(s). Injection of anti-Mas-AT antiserum partially suppressed the fly follicle development in vivo. Presence of anti-Mas-AT antiserum decreased the allatotropic effect of the brain released allatotropic factor(s) in vitro. In addition to a Mas-AT-like substance, it is possible that the brains of liver-fed P. reg...Continue Reading

References

Nov 1, 1991·Proceedings of the National Academy of Sciences of the United States of America·S J KramerD A Schooley
Mar 15, 1991·Proceedings of the National Academy of Sciences of the United States of America·G E PrattR Feyereisen
Jan 1, 1990·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·C S ThompsonS S Tobe
Jan 1, 1996·Archives of Insect Biochemistry and Physiology·P MoshitzkyS W Applebaum
Nov 14, 1997·Physiological Reviews·G GädeJ H Spring
Jul 6, 2000·Insect Biochemistry and Molecular Biology·L I GilbertR M Roe
May 31, 2001·Genome Research·R S Hewes, P H Taghert
Mar 17, 1989·Science·H KataokaS J Kramer

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Citations

Nov 6, 2003·Insect Biochemistry and Molecular Biology·P MoshitzkyS W Applebaum
Sep 24, 2004·Regulatory Peptides·Mohatmed Abdel-latiefKlaus H Hoffmann
Jul 16, 2005·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Susan M RankinStephen S Tobe

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