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| Registros recuperados: 16 | |
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| Kadala, A.; Charreton, M.; Jacob, I.; Le Conte, Y.; Collet, C.. |
| We studied the mode of action of type I pyrethroids on the voltage-dependent sodium current from honeybee olfactory receptor neurons (ORNs), whose proper function in antenna is crucial for interindividual communication in this species. Under voltage-clamp, tetramethrin and permethrin induce a long lasting TTX-sensitive tail current upon repolarization, which is the hallmark of an abnormal prolongation of the open channel configuration. Permethrin and tetramethrin also slow down the sodium current fast inactivation. Tetramethrin and permethrin both bind to the closed state of the channel as suggested by the presence of an obvious tail current after the first single depolarization applied in the presence of either compounds. Moreover, at first sight,... |
| Tipo: Journal Article |
Palavras-chave: ABEILLE DOMESTIQUE; SENSILLE ANTENNAIRE; NEURONE A RECEPTEUR OLFACTIF; NEURONE SENSORIEL; ELECTROPHYSIOLOGIE; PERMETHRINE; TETRAMETHRINE; PYRETHRINOIDE; COURANT IONIQUE; SANTE; MODE ACTION; CANAL SODIUM; MODIFICATION ETAT-DEPENDANTE APIS MELLIFERA; APIDAE; APIFORMES; HYMENOPTERA. |
| Ano: 2011 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201176512ee0&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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| Monti, L.; Lalanne-Cassou, B.; Lucas, P.; Malosse, C.; Silvain, J.F.. |
| S. latifascia and S. descoinsi are closely related species that occur sympatrically over limited areas in French Guiana. We examined allopatric populations, S. latifascia originating from Barbados and S. descoinsi from French Guiana. Studies on nocturnal activity cycles showed temporal partitioning of female calling behavior, male sexual activity, and mating behavior.S. descoinsi were sexually active in the first half of the scotophase whereas S. latifascia were sexually active in the second half. Seven compounds (Z9–14: Ac,Z9,E12–14: Ac,Z11–16: Ac,E9,E12–14: Ac,Z9–14: Ald,Z9,E11–14: Ac andZ11–14: Ac) were identified in females of both S. latifascia and S. descoinsi extracts.Z9–14: Ac was a main pheromone component for the two species. The major difference... |
| Tipo: Journal Article |
Palavras-chave: SPODOPTERA; LEPIDOPTERE; NOCTUIDAE; ACTIVITE SEXUELLE; ATTRACTION SEXUELLE; ISOLATION; PHEROMONE SEXUELLE; RYTHME D'ACTIVITE; ELECTROPHYSIOLOGIE; REPRODUCTION LEPIDOPTERA; NOCTUIDAE; SPODOPTERA LATIFASCIA; SPODOPTERA DESCOINSI; PHEROMONES; (Z)-9-TETRADECENYL ACETATE; (Z E)-9 12-TETRADECADIENYL ACETATE; SEXUAL ACTIVITY RHYTHMS; CROSS-ATTRACTION; ELECTROPHYSIOLOGY; REPRODUCTIVE ISOLATION. |
| Ano: 1995 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9600002138054208&uri=/notices/prodinra1/2010/11/ |
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| Verbist, J.F.; Gouiffes-Barbin, D.; Roussakis, C.; Welin, L.; Reveillere, H.P.; Hénichart, J.P.; Moreau, S.; Laurent, Dominique; Debitus, Cécile; Saurat, M.P.; Diacono, J.; Monniot, F.. |
| Tipo: Text |
Palavras-chave: SUBSTANCE NATURELLE; INVERTEBRE AQUATIQUE; ACTIVITE BIOLOGIQUE; CYTOLOGIE; PHARMACOLOGIE; UROCHORDE; TOXINE; BISTRAMIDE A; ELECTROPHYSIOLOGIE. |
| Ano: 1989 |
URL: http://www.documentation.ird.fr/hor/fdi:34303 |
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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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| Poree, F.; Wulfetange, K.; Naso, A.; Carpaneto, A.; Roller, A.; Natura, G.; Bertl, A.; Sentenac, H.; Thibaud, J.B.; Dreyer, I.. |
| Members of the Shaker-like plant K+ channel family share a common structure, but are highly diverse in their function: they behave as either hyperpolarization-activated inward-rectifying (Kin) channels, or leak-like (Kweak) channels, or depolarization-activated outward-rectifying (Kout) channels. Here we created 256 chimeras between the Kin channel KAT1 and the Kout channel SKOR. The chimeras were screened in a potassium-uptake deficient yeast strain to identify those, which mediate potassium inward currents, i.e., which are functionally equivalent to KAT1. This strategy allowed us to identify three chimeras which differ from KAT1 in three parts of the polypeptide: the cytosolic N-terminus, the cytosolic C-terminus, and the putative voltage-sensor S4.... |
| Tipo: Journal Article |
Palavras-chave: CANAL POTASSIQUE; ELECTROPHYSIOLOGIE; CHIMERE POTASSIUM CHANNEL; RECTIFICATION; YEAST COMPLEMENTATION; CHIMERA; SITE-DIRECTED MUTAGENESIS; SKOR CHANNEL. |
| Ano: 2005 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007ea55af23&uri=/notices/prodinra1/2007/02/ |
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| Hedenström, E.; Edlund, H.; Wassgren, A.B.; Bergström, G.; Anderbrant, O.; Östrand, F.; Sierpinski, A.; Auger-Rozenberg, M.A.; Herz, A.; Heitland, W.; Varama, M.. |
| We present the identification of the sex pheromone in the pine sawfly, Gilpinia pallida, including analysis of the female pheromone content, male antennal response and attraction in the field, and synthesis of the most active pheromone component. Several 3,7-dimethyl-2-alkanols were identified from female whole-body extracts, including some compounds with a 2R configuration. This is the first observation of such compounds in a pine sawfly species. Antennae of male G. pallida responded strongly in electroantennograph (EAG) recordings to the (2S,3R,7R)-isomers of the propionates of 3,7-dimethyl-2-tridecanol, 3,7-dimethyl-2-tetradecanol, and 3,7-dimethyl-2-pentadecanol, as well as to the acetates of the tri- and pentadecanols (the acetate of the tetradecanol... |
| Tipo: Journal Article |
Palavras-chave: HYMENOPTERE; DIPRION; DEFOLIATEUR; PHEROMONE SEXUELLE; IDENTIFICATION BIOCHIMIQUE; ELECTROPHYSIOLOGIE; SPECTROMETRIE DE MASSE; CHROMATOGRAPHIE EN PHASE GAZEUZE GILPINIA PALLIDA. |
| Ano: 2006 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20076186cd24&uri=/notices/prodinra1/2010/11/ |
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| Registros recuperados: 16 | |
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