Juvenile-hormone-mediated plasticity of aggregation behaviour and olfactory processing in adult desert locusts
(2001) In Journal of Experimental Biology 204(2). p.249-259- Abstract
- In desert locusts Schistocerca gregaria, aggregation behaviour is elicited by aggregation pheromones. In this study, we show that the behavioural response to the major and most potent adult aggregation pheromone component, phenylacetonitrile, is age- and juvenile-hormone-dependent. Furthermore, we show that juvenile hormone influences the responsiveness of olfactory interneurons in the antennal lobe to aggregation pheromone, whereas the responsiveness of antennal receptor neurons is not changed. Old locusts and locusts injected with juvenile hormone, in contrast to young locusts and locusts deprived of juvenile hormone through allatectomy, i.e. after surgical removal of the gland producing this hormone, do not display any aggregation... (More)
- In desert locusts Schistocerca gregaria, aggregation behaviour is elicited by aggregation pheromones. In this study, we show that the behavioural response to the major and most potent adult aggregation pheromone component, phenylacetonitrile, is age- and juvenile-hormone-dependent. Furthermore, we show that juvenile hormone influences the responsiveness of olfactory interneurons in the antennal lobe to aggregation pheromone, whereas the responsiveness of antennal receptor neurons is not changed. Old locusts and locusts injected with juvenile hormone, in contrast to young locusts and locusts deprived of juvenile hormone through allatectomy, i.e. after surgical removal of the gland producing this hormone, do not display any aggregation behaviour, as indicated by long-term behavioural observations. The lack of positive olfactory-guided behaviour coincides with an impairment of the central olfactory system, which displays a lower number of neurons responding to aggregation pheromone. Indirect and direct actions of juvenile hormone at different levels of the central nervous system may thus contribute to the regulation and modulation of behavioural responsiveness in the locust. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/149682
- author
- Ignell, Rickard LU ; Couillaud, F and Anton, Sylvia LU
- organization
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Experimental Biology
- volume
- 204
- issue
- 2
- pages
- 249 - 259
- publisher
- The Company of Biologists Ltd
- external identifiers
-
- scopus:0035141104
- ISSN
- 1477-9145
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Ecology/Ecotoxicology (Closed 2011) (011006020), Department of Ecology (Closed 2011) (011006010)
- id
- e0294b6a-5cd9-4366-add5-6cf9a15e4afd (old id 149682)
- alternative location
- http://jeb.biologists.org/cgi/reprint/204/2/249
- date added to LUP
- 2016-04-01 11:54:13
- date last changed
- 2025-04-04 14:09:14
@article{e0294b6a-5cd9-4366-add5-6cf9a15e4afd,
abstract = {{In desert locusts Schistocerca gregaria, aggregation behaviour is elicited by aggregation pheromones. In this study, we show that the behavioural response to the major and most potent adult aggregation pheromone component, phenylacetonitrile, is age- and juvenile-hormone-dependent. Furthermore, we show that juvenile hormone influences the responsiveness of olfactory interneurons in the antennal lobe to aggregation pheromone, whereas the responsiveness of antennal receptor neurons is not changed. Old locusts and locusts injected with juvenile hormone, in contrast to young locusts and locusts deprived of juvenile hormone through allatectomy, i.e. after surgical removal of the gland producing this hormone, do not display any aggregation behaviour, as indicated by long-term behavioural observations. The lack of positive olfactory-guided behaviour coincides with an impairment of the central olfactory system, which displays a lower number of neurons responding to aggregation pheromone. Indirect and direct actions of juvenile hormone at different levels of the central nervous system may thus contribute to the regulation and modulation of behavioural responsiveness in the locust.}},
author = {{Ignell, Rickard and Couillaud, F and Anton, Sylvia}},
issn = {{1477-9145}},
language = {{eng}},
number = {{2}},
pages = {{249--259}},
publisher = {{The Company of Biologists Ltd}},
series = {{Journal of Experimental Biology}},
title = {{Juvenile-hormone-mediated plasticity of aggregation behaviour and olfactory processing in adult desert locusts}},
url = {{http://jeb.biologists.org/cgi/reprint/204/2/249}},
volume = {{204}},
year = {{2001}},
}