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The release of a pheromonotropic neuropeptide, PBAN, in the turnip moth Agrotis segetum, exhibits a circadian rhythm

Zavodska, Radka; von Wowern, Germund; Löfstedt, Christer LU ; Rosén, Wenqi LU and Sauman, Ivo (2009) Symposium on Biological Clocks - From Genes to Physiology and Behavior held at the 23rd International Congress of Entomology In Journal of Insect Physiology 55(5). p.435-440
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... (More)
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. (C) 2008 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
neuropeptide (PBAN), Circadian, Pheromone biosynthesis activating, rhythm, Agrotis segetum
in
Journal of Insect Physiology
volume
55
issue
5
pages
435 - 440
publisher
Elsevier
conference name
Symposium on Biological Clocks - From Genes to Physiology and Behavior held at the 23rd International Congress of Entomology
external identifiers
  • wos:000265961700008
  • scopus:67349203945
ISSN
0022-1910
DOI
10.1016/j.jinsphys.2008.10.016
project
Evolutionary mechanisms of pheromone divergence in Lepidoptera
language
English
LU publication?
yes
id
0f3cb0ff-8e29-4c3e-ac78-b50f24df01cd (old id 1425941)
date added to LUP
2009-06-26 14:19:25
date last changed
2017-01-01 05:23:04
@inproceedings{0f3cb0ff-8e29-4c3e-ac78-b50f24df01cd,
  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. (C) 2008 Elsevier Ltd. All rights reserved.},
  author       = {Zavodska, Radka and von Wowern, Germund and Löfstedt, Christer and Rosén, Wenqi and Sauman, Ivo},
  booktitle    = {Journal of Insect Physiology},
  issn         = {0022-1910},
  keyword      = {neuropeptide (PBAN),Circadian,Pheromone biosynthesis activating,rhythm,Agrotis segetum},
  language     = {eng},
  number       = {5},
  pages        = {435--440},
  publisher    = {Elsevier},
  title        = {The release of a pheromonotropic neuropeptide, PBAN, in the turnip moth <i>Agrotis segetum</i>, exhibits a circadian rhythm},
  url          = {http://dx.doi.org/10.1016/j.jinsphys.2008.10.016},
  volume       = {55},
  year         = {2009},
}