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| Registros recuperados: 43 | |
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| Legeai, F.; Malpel, S.; Montagné, N.; Monsempes, C.; Cousserans, F.; Merlin, C.; Francois, M.C.; Maibeche Coisne, M.; Gavory, F.; Poulain, J.; Jacquin Joly, E.. |
| Background :Nocturnal insects such as moths are ideal models to study the molecular bases of olfaction that they use, among examples, for the detection of mating partners and host plants. Knowing how an odour generates a neuronal signal in insect antennae is crucial for understanding the physiological bases of olfaction, and also could lead to the identification of original targets for the development of olfactory-based control strategies against herbivorous moth pests. Here, we describe an Expressed Sequence Tag (EST) project to characterize the antennal transcriptome of the noctuid pest model, Spodoptera littoralis, and to identify candidate genes involved in odour/pheromone detection.Results :By targeting cDNAs from male antennae, we biased gene... |
| Tipo: Journal Article |
Palavras-chave: DETECTION OLFACTIVE; PAPILLON DE NUIT; SEQUENCE GENOMIQUE; NOCTUELLE NOCTUID MOTH SPODOPTERA LITTORALIS; PHEROMONE; OLFACTORY DETECTION. |
| Ano: 2011 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201159b3cef&uri=/notices/prodinra1/2011/05/ |
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| Durand, N.; Carot-Sans, G.; Chertemps, T.; Bozzolan, F.; Party, V.; Renou, M.; Debernard, S.; Rosell, G.; Maïbèche-Coisne, M.. |
| Background: Carboxyl/cholinesterases (CCEs) are highly diversified in insects. These enzymes have a broad range of proposed functions, in neuro/developmental processes, dietary detoxification, insecticide resistance or hormone/ pheromone degradation. As few functional data are available on purified or recombinant CCEs, the physiological role of most of these enzymes is unknown. Concerning their role in olfaction, only two CCEs able to metabolize sex pheromones have been functionally characterized in insects. These enzymes are only expressed in the male antennae, and secreted into the lumen of the pheromone-sensitive sensilla. CCEs able to hydrolyze other odorants than sex pheromones, such as plant volatiles, have not been identified. Methodology: In... |
| Tipo: Journal Article |
Palavras-chave: LEPIDOPTERA; NOCTUIDAE; HEXAPODA; PCR; ADNC; SDS PAGE; EXPRESSION DES GENES; ELECTROPHORESE; CARBOXYLESTERASE; SPODOPTERA LITTORALIS; OLFACTION; ODEEUR; PLANTE HOTE; INSECTE; ENZYME; BIOLOGIE MOLECULAIRE; BIOCHIMIE; ELECTROPHYSIOLOGIE; PHEROMONE; PHEROMONE SEXUELLE; RECOMBINAISON; PROTEINE. |
| Ano: 2010 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010229c7cd1&uri=/notices/prodinra1/2011/05/ |
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| Duportets, L.; Barrozo, R.B.; Bozzolan, F.; Gaertner, C.; Anton, S.; Gadenne, C.; Debernard, S.. |
| In the male moth Agrotis ipsilon behavioural response and antennal lobe (AL) neuron sensitivity to the female-produced sex pheromone increase with age and juvenile hormone (JH) level. We recently showed that the neuromodulator, octopamine (OA), interacts with JH in this age-dependent olfactory plasticity. To further elucidate its role, we cloned a full cDNA encoding a protein that presents biochemical features essential to OA/tyramine receptor (AipsOAR/TAR) function. The AipsOAR/TAR transcript was detected predominantly in the antennae, the brain and, more specifically, in ALs where its expression level varied concomitantly with age. This expression plasticity indicates that AipsOAR/TAR might be involved in central processing of the pheromone signal during... |
| Tipo: Journal Article |
Palavras-chave: LOBE ANTENNAIRE; LEPIDOPTERA; NOCTUIDAE; AGROPIS IPSILON; RECEPTEUR; OLFACTION; MITE; INSECTE; MATURATION SEXUELLE; ARTHROPODA; HEXAPODA; NEURONE; PHEROMONE; HORMONE; ADNC; CLONAGE; COMPORTEMENT SEXUEL; ATTRACTIF SEXUEL ANTENNAL LOBE; OCTOPAMINE/TYRAMINE RECEPTOR; OLFACTORY PROCESSING; MATURATION; EXPRESSION PLASTICITY. |
| Ano: 2010 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20102d18e75d&uri=/notices/prodinra1/2011/02/ |
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| Gu, Y.; Lucas, P.; Rospars, J.P.. |
| All sensory neurons transduce their natural stimulus, whether a molecule, a photon, or a mechanical force, in an electrical current flowing through their sensory membrane via similar molecular and ionic mechanisms. Olfactory receptor neurons (ORNs), whose stimuli are volatile molecules, are no exception, including one of the best known: the exquisitely sensitive ORNs of male moths that detect the sexual pheromone released by conspecific females. We provide a detailed computational model of the intracellular molecular mechanisms at work in this ORN type. We describe qualitatively and quantitatively how the initial event, the interaction of pheromone molecules with specialized receptors at the ORN surface, is amplified through a sequence of linked... |
| Tipo: Journal Article |
Palavras-chave: MODELE; INSECTE; PHEROMONE; NEURONE; RECEPTEUR; MITE; PROTEINE; ACTIVITE ENZYMATIQUE; CANAL A CALCIUM; CANAL A POTASSIUM; PROTEINE KINASE C; CALMODULINE; OLFACTION OLFACTORY RECEPTOR NEURONS; PROTEIN-KINASE-C; DROSOPHILA ODORANT RECEPTORS; ANTHERAEA-POLYPHEMUS; CHLORIDE CURRENT; PHOSPHOLIPASE-C; BOMBYX-MORI; SENSILLA TRICHODEA; DEGRADING ENZYME; CATION CHANNELS. |
| Ano: 2009 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010634023e&uri=/notices/prodinra1/2010/10/ |
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| Frenoy, C.; Durier, C.; Hawlitzky, N.. |
| Volatile chemicals emanating from the different developmental stages of Ostrinia nubilalis Hübner (Lepidoptera, Pyralidae) increase the mobility of Trichogramma brassicae Bezdenko (Hymenoptera, Trichogrammatidae) in a linear airflow olfactometer. In this paper, we have demonstrated that airborne chemicals from egg masses and virgin females during calling activity stimulate an intensive search behavior byTrichogramma females. On the other hand, emanations from mated females with extruded abdominal tips do not incite the parasitoid''s movement. For the moment we cannot elucidate, with these bioassays, the real role of these kairomones as attractants, guides, stimulants, or retainers. |
| Tipo: Journal Article |
Palavras-chave: LEPIDOPTERA; PYRALIDAE; OSTRINIA NUBILALIS; HYMENOPTERA; TRICHOGRAMMATIDAE; TRICHOGRAMMA BRASSICAE; KAIROMONE TRICHOGRAMMA BRASSICAE; HYMENOPTERA; TRICHOGRAMMATIDAE; KAIROMONE; PHEROMONE; OSTRINIA NUBILALIS; LEPIDOPTERA; PYRALIDAE BIOLOGICAL CONTROL; EUROPEAN CORN BORER - PARASITOID. |
| Ano: 1992 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9300009516021313&uri=/notices/prodinra1/2010/11/ |
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| Anderson, A.R.; Wanner, K.W.; Trowell, S.C.; Warr, C.G.; Jacquin-Joly, E.; Zagatti, P.; Robertson, H.; Newcomb, R.D.. |
| Males and females of many moth species exhibit important differences in sexual behaviours. Much research in this field has focused on the male-specific behaviour, electrophysiology and molecular biology of sex pheromone reception. Female-specific behaviours have been less well studied although, like male-specific behaviours, they could provide opportunities for intervention and management of lepidopteran pests. Previously, we identified genes encoding putative odorant receptors (ORs) from the genome of the silkworm, Bombyx mori, some of which have higher levels of steady-state transcript in the antennae of adult females compared with males. We have identified the full-length cDNA sequences of some of these ORs and described a novel OR that is part of a... |
| Tipo: Journal Article |
Palavras-chave: TERPENE; ACIDE BENZOIQUE; PHENYLETHANOL; BENZALDEHYDE; ELECTROPHYSIOLOGIE; SEQUENCE NUCLEOTIDIQUE; ODEUR; HYPOTHENEMUS HAMPEI; ARTHROPODA; HEXAPODA; INSECTE; RECEPTEUR; PLANTE; COMPOSE VOLATILE; COMPORTEMENT SEXUEL; ATTRACTIF SEXUEL; ADNC; BIOLOGIE MOLECULAIRE; LEPIDOPTERA BOMBYX MORI; OLFACTION; ODORANT RECEPTORS; PLANT VOLATILES; PHEROMONE. |
| Ano: 2009 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20101ffb559b&uri=/notices/prodinra1/2010/11/ |
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| Augustin, S.; Guichard, S.; Svatos, A.; Gilbert, M.. |
| The leafminer Cameraria ohridella Deschka & Dimic is an invasive pest of horse chestnut, Aesculus hippocastanum L., trees that has spread rapidly across Europe over the past 19 yr. It was recently reported in the United Kingdom, Denmark, and the Ukraine, and this spread is expected to continue through the Scandinavian countries until the northern limit of the host tree distribution is reached. The presence of the species is generally reported first in the cities, either as consequence of human-related transportation or because of the higher number of host trees in these areas. As a consequence, detailed studies of the spread of this pest through rural areas have not yet been carried out. We have monitored the spread of the moth at the fringe of its... |
| Tipo: Journal Article |
Palavras-chave: MARRONNIER D'INDE; MINEUSE DU MARONNIER D'INDE; INVASION BIOLOGIQUE; PIEGE SEXUEL; PHEROMONE; ESTIMATION DES POPULATIONS; DYNAMIQUE SPATIALE; MODELE SPATIO TEMPOREL; EVALUATION DES DEGATS CAMERARIA OHRIDELLA; LEPIDOPTERA. |
| Ano: 2004 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007e20d54ab&uri=/notices/prodinra1/2007/08/ |
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| Registros recuperados: 43 | |
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