Advanced

The circadian rhythm of the sex-pheromone-mediated behavioral response in the turnip moth, Agrotis segetum, is not controlled at the peripheral level

Rosén, Wenqi LU ; Han, G B and Löfstedt, Christer LU (2003) In Journal of Biological Rhythms 18(5). p.402-408
Abstract
The pheromone-mediated upwind flight of male turnip moths was observed in a flight tunnel at different times of day under conditions of a light-dark (LD) cycle, constant darkness (DD), and a shifted photoperiod. Under both LD and DD conditions, a significantly larger number of males flew to the pheromone during both the scotophase and the subjective scotophase than during the photophase and the subjective photophase for 2 consecutive days. When 1-day-old moths were transferred to a shifted LD cycle with lights turned off 4 h earlier, male behavioral responses to the pheromone advanced in time accordingly by 4 h. This showed that male behavioral responses to the pheromone are under the control of an endogenous oscillator. To further examine... (More)
The pheromone-mediated upwind flight of male turnip moths was observed in a flight tunnel at different times of day under conditions of a light-dark (LD) cycle, constant darkness (DD), and a shifted photoperiod. Under both LD and DD conditions, a significantly larger number of males flew to the pheromone during both the scotophase and the subjective scotophase than during the photophase and the subjective photophase for 2 consecutive days. When 1-day-old moths were transferred to a shifted LD cycle with lights turned off 4 h earlier, male behavioral responses to the pheromone advanced in time accordingly by 4 h. This showed that male behavioral responses to the pheromone are under the control of an endogenous oscillator. To further examine the level at which the circadian rhythm of the male behavioral response is regulated, the authors tested the olfactory responses of male antennal receptors to pheromone stimuli by means of electroantennograms (EAG) at different times of day. No significant variation in the sensitivity of the male antennal response to the pheromone was observed in terms of time of day. The results suggest that circadian regulation of the rhythmic behavioral response to pheromones in the male Agrotis occurs at the central nervous system level. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Biological Rhythms
volume
18
issue
5
pages
402 - 408
publisher
SAGE Publications Inc.
external identifiers
  • wos:000185564200006
  • scopus:0141788106
ISSN
1552-4531
DOI
10.1177/0748730403256869
language
English
LU publication?
yes
id
31b4abc8-9ee7-40d9-bc43-653bca82c3ea (old id 135905)
date added to LUP
2007-06-27 12:05:59
date last changed
2017-01-01 07:28:46
@article{31b4abc8-9ee7-40d9-bc43-653bca82c3ea,
  abstract     = {The pheromone-mediated upwind flight of male turnip moths was observed in a flight tunnel at different times of day under conditions of a light-dark (LD) cycle, constant darkness (DD), and a shifted photoperiod. Under both LD and DD conditions, a significantly larger number of males flew to the pheromone during both the scotophase and the subjective scotophase than during the photophase and the subjective photophase for 2 consecutive days. When 1-day-old moths were transferred to a shifted LD cycle with lights turned off 4 h earlier, male behavioral responses to the pheromone advanced in time accordingly by 4 h. This showed that male behavioral responses to the pheromone are under the control of an endogenous oscillator. To further examine the level at which the circadian rhythm of the male behavioral response is regulated, the authors tested the olfactory responses of male antennal receptors to pheromone stimuli by means of electroantennograms (EAG) at different times of day. No significant variation in the sensitivity of the male antennal response to the pheromone was observed in terms of time of day. The results suggest that circadian regulation of the rhythmic behavioral response to pheromones in the male Agrotis occurs at the central nervous system level.},
  author       = {Rosén, Wenqi and Han, G B and Löfstedt, Christer},
  issn         = {1552-4531},
  language     = {eng},
  number       = {5},
  pages        = {402--408},
  publisher    = {SAGE Publications Inc.},
  series       = {Journal of Biological Rhythms},
  title        = {The circadian rhythm of the sex-pheromone-mediated behavioral response in the turnip moth, <i>Agrotis segetum</i>, is not controlled at the peripheral level},
  url          = {http://dx.doi.org/10.1177/0748730403256869},
  volume       = {18},
  year         = {2003},
}