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Titolo:
Contrasting effects of imidacloprid on habituation in 7- and 8-day-old honeybees (Apis mellifera)
Autore:
Guez, D; Suchail, S; Gauthier, M; Maleszka, R; Belzunces, LP;
Indirizzi:
INRA, Unit Zool, Lab Toxicol Environm, F-84914 Avignon 9, France INRA Avignon France 9 l, Lab Toxicol Environm, F-84914 Avignon 9, France Australian Natl Univ, Res Sch Biol Sci, Canberra, ACT 0200, Australia Australian Natl Univ Canberra ACT Australia 0200 rra, ACT 0200, Australia Univ Toulouse 3, Lab Neurobiol & Comportement, F-31062 Toulouse, France Univ Toulouse 3 Toulouse France F-31062 tement, F-31062 Toulouse, France
Titolo Testata:
NEUROBIOLOGY OF LEARNING AND MEMORY
fascicolo: 2, volume: 76, anno: 2001,
pagine: 183 - 191
SICI:
1074-7427(200109)76:2<183:CEOIOH>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
NICOTINIC ACETYLCHOLINE-RECEPTORS; BEHAVIORAL-DEVELOPMENT; MUSHROOM BODIES; MYZUS-PERSICAE; INSECTS; BEE; METABOLITES; RETRIEVAL; EFFICACY; MEMORY;
Keywords:
neonicotinoid; chloronicotinyl; nicotinic acetylcholine receptor; Apis mellifera; nonassociative learning; behavior; Hymenoptera;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Belzunces, LP INRA, Unit Zool, Lab Toxicol Environm, Site Agroparc, F-84914 Avignon 9, France INRA Site Agroparc Avignon France 9 84914 Avignon 9, France
Citazione:
D. Guez et al., "Contrasting effects of imidacloprid on habituation in 7- and 8-day-old honeybees (Apis mellifera)", NEUROBIOL L, 76(2), 2001, pp. 183-191

Abstract

We examined the effects of sublethal doses (0.1, 1, and 10 ng per animal) of a new neonicotinoid insecticide, Imidacloprid, on habituation of the proboscis extension reflex (PER) in honeybees (Apis mellifera) reared under laboratory conditions. In untreated honeybees, the habituation of the proboscis extension reflex is age-dependent and there is a significant increase inthe number of trials required for habituation in older bees (8-10 days old) as compared to very young bees (4-7 days old). Imidacloprid alters the number of trials needed to habituate the honeybee response to multiple sucrose stimulation. In 7-day-old bees, treatment with Imidacloprid leads to an increase in the number of trials necessary to abolish the response, whereas in 8-day-old bees, it leads to a reduction in the number of trials for habituation (15 min and 1h after treatment), and to an increase 4 h after treatment. The temporal effects of Imidacloprid in both 7- and 8-day-old bees suggest that 4 h after treatment the observed effects are due to a metaboliteof Imidacloprid, rather than to Imidacloprid itself. Our results suggest the existence of two distinct subtypes of nicotinic receptors in the honeybee that have different affinities to Imidacloprid and are differentially expressed in 7- and 8-day-old individuals. (C) 2001 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 09:47:45