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Titolo:
Juvenile-hormone-mediated plasticity of aggregation behaviour and olfactory processing in adult desert locusts
Autore:
Ignell, R; Couillaud, F; Anton, S;
Indirizzi:
Univ Lund, Dept Ecol, SE-22362 Lund, Sweden Univ Lund Lund Sweden SE-22362 iv Lund, Dept Ecol, SE-22362 Lund, Sweden INSERM, U378, Inst Francois Magendie, Lab Neurobiol Fonct, F-33077 Bordeaux, France INSERM Bordeaux France F-33077 Neurobiol Fonct, F-33077 Bordeaux, France
Titolo Testata:
JOURNAL OF EXPERIMENTAL BIOLOGY
fascicolo: 2, volume: 204, anno: 2001,
pagine: 249 - 259
SICI:
0022-0949(200101)204:2<249:JPOABA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCHISTOCERCA-GREGARIA FORSKAL; MOTH MANDUCA-SEXTA; HONEY-BEE; RECEPTOR NEURONS; ANTENNAL LOBES; RELEVANT ODORS; INSTAR LOCUSTS; APIS-MELLIFERA; PHEROMONE; MIGRATORIA;
Keywords:
Schistocerca gregaria; juvenile hormone; behaviour; electrophysiology; antennal lobe; olfactory processing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
69
Recensione:
Indirizzi per estratti:
Indirizzo: Ignell, R Univ Lund, Dept Ecol, SE-22362 Lund, Sweden Univ Lund Lund Sweden SE-22362 ept Ecol, SE-22362 Lund, Sweden
Citazione:
R. Ignell et al., "Juvenile-hormone-mediated plasticity of aggregation behaviour and olfactory processing in adult desert locusts", J EXP BIOL, 204(2), 2001, pp. 249-259

Abstract

In desert locusts Schistocerca gregaria, aggregation behaviour is elicitedby 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 robe to aggregation pheromone, whereas the responsiveness of antennal receptor neurons is not changed. Old locusts and locustsinjected 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 longterm 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.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 23:02:33