| Title: | "The release of a pheromonotropic neuropeptide, PBAN, in the turnip moth Agrotis segetum, exhibits a circadian rhythm" |
| Author(s): | Zavodska R; von Wowern G; Lofstedt C; Rosen W; Sauman I; |
| Address: | "University of South Bohemia, Ceske Budejovice, Czech Republic. radkaz@pf.jcu.cz" |
| DOI: | 10.1016/j.jinsphys.2008.10.016 |
| ISSN/ISBN: | 1879-1611 (Electronic) 0022-1910 (Linking) |
| Abstract: | "In the female turnip moth, Agrotis segetum, a pheromone biosynthesis activating neuropeptide (PBAN) stimulates sex pheromone biosynthesis which exhibits a daily rhythm. Here we show data supporting a circadian rhythm in PBAN release from the corpora cardiaca, which we propose regulates the endogenous rhythm in sex pheromone biosynthesis. This conclusion is drawn as the observed daily rhythm in PBAN-like immunoreactivity in the hemolymph is persistent in constant darkness and is phase-shifted by an advanced light:dark cycle. PBAN-like immunoreactivity was found in the brain, the optic lobe, the suboesophageal ganglion and in the retrocerebral complex. In each hemisphere ca. 10 immunopositive neurons were observed in the pars intercerebralis and a pair of stained somata in the dorso-lateral protocerebrum. A cluster of cells containing PBAN-like immunoreactive material was found in the tritocerebrum and three clusters of such cells were found in the SOG. Their processes reach the corpora cardiaca via nervi corporis cardiaci and the dorsal surface of the corpora allata via the nervi corporis allati" |
| Keywords: | Animals Brain/metabolism/radiation effects Circadian Rhythm Female Hemolymph/metabolism/radiation effects Light Male Moths/*physiology/radiation effects Neuropeptides/*biosynthesis Sex Attractants/*biosynthesis; |
| Notes: | "MedlineZavodska, Radka von Wowern, Germund Lofstedt, Christer Rosen, WenQi Sauman, Ivo eng Research Support, Non-U.S. Gov't England 2008/12/02 J Insect Physiol. 2009 May; 55(5):435-40. doi: 10.1016/j.jinsphys.2008.10.016. Epub 2008 Dec 13" |
