Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 25
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
A model of stimulus-specific neural assemblies in the insect antennal lobe Inra
Martinez, D.; Montejo, N..
A fundamental question in computational neuroscience is to understand how interactions between neurons underlie sensory coding and information storage. In the first relay of the insect olfactory system, odorant stimuli trigger synchronized activities in neuron populations. Synchronized assemblies may arise as a consequence of inhibitory coupling, because they are disrupted when inhibition is pharmacologically blocked. Using computational modelling, we studied the role of inhibitory, noisy interactions in producing stimulus-specific synchrony. So far, experimental data and modelling studies indicate that fast inhibition induces neural synchrony, but it remains unclear how desynchronization occurs. From theoretical analysis and computer simulations, we found...
Tipo: Journal Article Palavras-chave: DROSOPHILE; NEURONE; OLFACTION; INSECTE; MODELE; LOBE ANTENNAIRE; ODEUR; STIMULUS; ANALYSE STATISTIQUE OLFACTORY-BULB; INHIBITORY NEURONS; OSCILLATORY SYNCHRONIZATION; ODOR REPRESENTATION; OUTPUT NEURONS; NETWORK MODEL; DROSOPHILA; DYNAMICS; DISCRIMINATION; INFORMATION.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201028bfe973&uri=/notices/prodinra1/2010/10/
Imagem não selecionada

Imprime registro no formato completo
Appetibilite et caracteristiques organoleptiques des graminees. I.- Comparaison du ray-grass et de la fetuque elevee Inra
Scehovic, J.; Poisson, C.; Gillet, M..
Les études du comportement alimentaire des moutons envers différentes espèces de graminées dans une cafétéria d’auges installée à Lusignan (I.N.R.A.-France) ont permis d’enregistrer, entre autres, l’observation suivante : l’aspersion de la fétuque élevée, espèce peu appétible, avec le jus extrait de ray-grass d’Italie, espèce très appétible, et vice-versa, a eu pour résultat la modification significative du comportement des moutons envers les deux espèces comparées. Etant donné que l’effet de ces interventions s’avérait limité dans le temps, nous en avons déduit la présence de substances volatiles. Afin d’expliquer cette action sur le comportement alimentaire des moutons, nous avons procédé à la détermination de différentes substances chimiques du...
Tipo: Journal Article Palavras-chave: APPETIBILITE; ANALYSE ORGANOLEPTIQUE; ODEUR.
Ano: 1985 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB8619024001679&uri=/notices/prodinra1/2009/02/
Imagem não selecionada

Imprime registro no formato completo
Asymmetrical generalisation between pheromonal and floral odours in appetitive olfactory conditioning of the honey bee (Apis mellifera L.) Inra
Sandoz, J.C.; Pham-Delègue, M.H.; Renou, M.; Wadhams, L.J..
The capacity to generalise between similar but not identical olfactory stimuli is crucial for honey bees, allowing them to find rewarding food sources with varying volatile emissions. We studied bees' generalisation behaviour with odours having different biological values: typical floral odours or alarm compounds. Bees' behavioural and peripheral electrophysiological responses were investigated using a combined proboscis extension response conditioning-electroantennogram assay. Bees were conditioned to pure linalool (floral) or to pure isoamyl acetate (alarm) and were tested with different concentrations of both compounds. Electrophysiological responses were not influenced by conditioning, suggesting that the learning of individual compounds does not rely...
Tipo: Journal Article Palavras-chave: APIS MELLIFERA; ODEUR; HYMENOPTERA; INSECTE SOCIAL; APPRENTISSAGE ANIMAL; ELECTROPHYSIOLOGIE;   OLFACTORY LEARNING; GENERALISATION; ELECTROANTENNOGRAM; PROBOSCIS EXTENSION RESPONSE CONDITIONNING; ALARM PHEROMONES.
Ano: 2001 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0300012579095253&uri=/notices/prodinra1/2010/11/
Imagem não selecionada

Imprime registro no formato completo
Changes with age in olfactory conditioning performance of worker honey bees (Apis mellifera) (conditioned proboscis extension, age effect) Inra
Laloi, D.; Gallois, M.; Roger, B.; Pham Delegue, M.H..
Tipo: Journal Article Palavras-chave: APIS MELLIFERA; ABEILLE OUVRIERE; AGE; ODEUR.
Ano: 2001 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0100003031088964&uri=/notices/prodinra1/2009/12/
Imagem não selecionada

Imprime registro no formato completo
Competitive and noncompetitive odorant interactions in the early neural coding of odorant mixtures Inra
Rospars, J.P.; Lansky, P.; Chaput, M.; Duchamp-Viret, P..
Most olfactory receptor neurons (ORNs) express a single type of olfactory receptor that is differentially sensitive to a wide variety of odorant molecules. The diversity of possible odorant-receptor interactions raises challenging problems for the coding of complex mixtures of many odorants, which make up the vast majority of real world odors. Pure competition, the simplest kind of interaction, arises when two or more agonists can bind to the main receptor site, which triggers receptor activation, although only one can be bound at a time. Noncompetitive effects may result from various mechanisms, including agonist binding to another site, which modifies the receptor properties at the main binding site. Here, we investigated the electrophysiological...
Tipo: Journal Article Palavras-chave: CODAGE; MODELE; OLFACTION; NEURONE; RECEPTEUR; ODEUR; INTERACTION MOLECULAIRE; CONCENTRATION; ANALYSE STATISTIQUE  SENSORY CODING; OLFACTORY RECEPTOR NEURON; IN VIVO; SIGNAL TRANSDUCTION; ALLOSTERY; MIXTURE INTERACTION.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20105031bac0&uri=/notices/prodinra1/2010/10/
Imagem não selecionada

Imprime registro no formato completo
Discrimination of oilseed rape volatiles by honey bee: novel combined gas chromatographic-electrophysiological behavioral assay Inra
Wadhams, L.J.; Blight, M.M.; Kerguelen, V.; Le Metayer, M.; Marion-Poll, F.; Masson, C.; Pham-Delegue, M.H.; Woodcock, C.M..
A novel technique for the simultaneous monitoring of electroan-tennogram (EAG) and conditioned proboscis extension (CPE) responses of honey bees to the effluent from a gas chromatograph (GC) was developed to locate biologically active components in blends of plant volatiles and to investigate odor recognition at the peripheral and behavioral levels. A six-component mixture, comprising compounds previously identified as oilseed rape floral volatiles, was used as the stimulus. Standard CPE and EAG recordings were done as a reference. EAG responses were elicited from unconditioned bees by all the components presented either in the coupled or the standard mode. Conditioned bees gave larger EAG responses than unconditioned bees, suggesting that antennal...
Tipo: Journal Article Palavras-chave: EXTENSION DU PROBOSCIS; REFLEXE CONDITIONNE; APIS MELLIFERA; APIDAE; DISCRIMINATION OLFACTIVE; ODEUR; ELECTROANTENNOGRAPHIE; CHROMATOGRAPHIE EN PHASE GAZEUSE; TEST BIOLOGIQUE HONEY BEE; APIS MELLIFERA; HYMENOPTERA; APIDAE; GAS CHROMATOGRAPHY; ELECTROANTENNOGRAM; CONDITIONED PROBOSCIS EXTENSION; OLFACTORY DISCRIMINATION.
Ano: 1994 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9500025144043436&uri=/notices/prodinra1/2010/11/
Imagem não selecionada

Imprime registro no formato completo
Functional annotation, genome organization and phylogeny of the grapevine (Vitis vinifera) terpene synthase gene family based on genome assembly, FLcDNA cloning, and enzyme assays Inra
Martin, D.M.; Aubourg, S.; Schouwey, M.B.; Daviet, L.; Schalk, M.; Toub, O.; Lund, S.T.; Bohlmann, J..
Background: Terpenoids are among the most important constituents of grape flavour and wine bouquet, and serve as useful metabolite markers in viticulture and enology. Based on the initial 8-fold sequencing of a nearly homozygous Pinot noir inbred line, 89 putative terpenoid synthase genes (VvTPS) were predicted by in silico analysis of the grapevine (Vitis vinifera) genome assembly [1]. The finding of this very large VvTPS family, combined with the importance of terpenoid metabolism for the organoleptic properties of grapevine berries and finished wines, prompted a detailed examination of this gene family at the genomic level as well as an investigation into VvTPS biochemical functions.Results: We present findings from the analysis of the up-dated 12-fold...
Tipo: Journal Article Palavras-chave: CHROMATOGRAPHIE; SPECTROMETRIE DE MASSE; CLONAGE; ADNC; METABOLISME SECONDAIRE; PHYLOGENIE; ENZYME; TERPENOIDE; FLAVEUR; ODEUR; CARTOGRAPHIE; PROPRIETE ORGANOLEPTIQUE ENT-COPALYL DIPHOSPHATE; CHROMATOGRAPHY-MASS SPECTROMETRY; SESQUITERPENE SYNTHASES (-)-GERMACRENE-D SYNTHASE SECONDARY METABOLISM ARABIDOPSIS-THALIANA; LIMONENE SYNTHASE ESCHERICHIA-COLI; RESISTANCE GENES; CDNA CLONING.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011fadf0898&uri=/notices/prodinra1/2011/01/
Imagem não selecionada

Imprime registro no formato completo
Impact of nutrition on nitrogen, phosphorus, Cu and Zn in pig manure, and on emissions of ammonia and odours Inra
Dourmad, J.Y.; Jondreville, C..
Tipo: Journal Article Palavras-chave: CUIVRE; NUTRITION MINERALE; ODEUR; ZINC.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20072976e51c&uri=/notices/prodinra1/2007/12/
Imagem não selecionada

Imprime registro no formato completo
Individual learning ability and complex odor recognition in the honey bee, Apis mellifera L. Inra
Laloi, D.; Roger, B.; Blight, M.M.; Wadhams, L.J.; Pham-Delègue, M.H..
Individually restrained worker bees were trained to recognize complex odors in a conditioned proboscis extension assay. Three groups of bees were considered, based on the responses recorded during the experimental procedure: selective learners, nonselective learners, and nonlearners. For conditioning, three concentrations of two synthetic mixtures were used. The distribution of bees between groups was not significantly affected by the nature or by the concentration of the conditioning mixture. After conditioning, bees were tested with the individual compounds, and the responses were analyzed with respect to the three groups. Selective learners showed discriminative responses to a few key compounds, while nonselective learners responded to all the...
Tipo: Journal Article Palavras-chave: PROBOSCIS; ABEILLE DOMESTIQUE; APIS MELLIFERA; INSECTE UTILE; ODEUR; DIFFERENCIATION; APTITUDE HONEYBEE; LEARNING; PROBOSCIS EXTENSION; OLFACTION; ODOR MIXTURE.
Ano: 1999 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0400002758104388&uri=/notices/prodinra1/2010/11/
Imagem não selecionada

Imprime registro no formato completo
Les récepteurs olfactifs et le codage des odeurs Inra
Le Bon, A.M.; Tromelin, A.; Thomas-Danguin, T.; Briand, L..
La première étape de la détection olfactive implique l’activation de récepteurs olfactifs par les molécules odorantes. Ces récepteurs sont des protéines membranaires contenues dans la membrane des cils portés par les neurones sensoriels olfactifs localisés dans l’épithélium olfactif. Le codage de l’odeur résulte de l’activation combinatoire d’un ensemble de récepteurs et repose sur leur expression clonale. La connectique neuronale aboutit à la formation, dans le cortex, d’une image sensorielle olfactive qui est perçue consciemment en tant qu’odeur. Ce système combinatoire permet, avec seulement environ 340 récepteurs différents, de discriminer des myriades de molécules odorantes naturelles ou non (nouvelles flaveurs culinaires, molécules de synthèse,...
Tipo: Journal Article Palavras-chave: CODAGE OLFACTIF; ÉVOLUTION; ODEUR; OLFACTION; RECEPTEURS OLFACTIFS; MELANGES D’ODORANTS EVOLUTION; OLFACTION; ODOUR; ODOUR CODING; OLFACTORY RECEPTORS; ODORANT MIXTURES.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20106fc5e9e8&uri=/notices/prodinra1/2011/04/
Imagem não selecionada

Imprime registro no formato completo
Mating-induced transient inhibition of responses to sex pheromone in a male moth is not mediated by octopamine or serotonin Inra
Barrozo, R.; Jarriault, D.; Simeone, X.; Gaertner, C.; Gadenne, C.; Anton, S..
In the male moth, Agrotis ipsilon, mating induces a transient inhibition of behavioural and central nervous responses to sex pheromone. Newly mated males are not attracted to sex pheromone, and the sensitivity of their antennal lobe (AL) neurons is lower than in virgin males. This rapid transient olfactory inhibition prevents them from re-mating unsuccessfully until they have refilled their sex glands. We hypothesized that this olfactory ‘switch off’ might be controlled by neuromodulators such as biogenic amines. To test our hypothesis, we studied the effects of octopamine (OA) and serotonin (5-hydroxytryptamine, 5-HT) on the coding properties of pheromone-sensitive AL neurons in virgin and newly mated males. We show that AL neuron sensitivity increased in...
Tipo: Journal Article Palavras-chave: AGROTIS IPSILON; INSECTE; MITE; OLFACTION; ODEUR; LOBE ANTENNALE; PHEROMONE SEXUELLE; ATTRACTIF SEXUEL; SEROTONINE; PLASTICITE; SYSTEME NERVEUX CENTRAL; NEURONE; RECEPTEUR; OCTOPAMINE; NOCTUIDAE; LEPIDOPTERA OLFACTORY CODING; MOTH; ANTENNAL LOBE; SEX PHEROMONE; PROJECTION NEURON; MATING; OCTOPAMINE; SEROTONIN; PLASTICITY.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010e7ad9fc3&uri=/notices/prodinra1/2010/09/
Imagem não selecionada

Imprime registro no formato completo
Molecular basis of female-specific odorant responses in Bombyx mori Inra
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/
Imagem não selecionada

Imprime registro no formato completo
Molecular characterization of a phospholipase C β potentially involved in moth olfactory transduction Inra
Chouquet, B.; Lucas, P.; Bozzolan, F.; Solvar, M.; Maïbèche-Coisné, M.; Durand, N.; Debernard, S..
To clarify the role of phospholipase C (PLC) in insect olfactory transduction, we have undertaken its molecular identification in the moth Spodoptera littoralis. From the analysis of a male antennal expressed sequence tag library, we succeeded in cloning a full-length cDNA encoding a PLC that belongs to the cluster of PLC-b subtypes. In adult males, the PLC-b transcript was located predominantly in brain and antennae where its presence was detected in the olfactory sensilla trichodea. Moreover, PLC-b was expressed in antennae at the beginning of the pupal stage, then reached a maximum at the end of this stage and was maintained at this level during the adult period. Taken together, these results provided molecular evidence for the putative participation of...
Tipo: Journal Article Palavras-chave: INSECTE; PHOSPHOLIPASE; OLFACTION; ODEUR; MITE; TECHNIQUE ANALYTIQUE; SEQUENCE NUCLEOTIDIQUE; EXPRESSION DES GENES; ADNC; TRANSCRIPTION; NORTHERN BLOT; ELECTROPHORESE; PCR; CLONAGE MOLECULAIRE; ANALYSE PHYLOGENETIQUE; LEPIDOPTERA; NOCTUELLE MEDITERRANEENNE EXPRESSION PATTERNS; OLFACTORY SYSTEM; PHOSPHOLIPASE C; SPODOPTERA LITTORALIS; SIGNAL TRANSDUCTION.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20108d7c7c75&uri=/notices/prodinra1/2010/09/
Imagem não selecionada

Imprime registro no formato completo
Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles Inra
Varela, N.; Avilla, J.; Gemeno, C.; Anton, S..
Both sexes of Grapholita molesta, a key pest of stone fruits, are able to detect host-plant volatiles and the sex pheromone emitted by females, and to modify their behaviour accordingly. How olfactory information is processed in the central nervous system is unknown. Intracellular recordings and stainings were used to characterize antennal lobe (AL) neuron responses to single pheromone components, a behaviourally active blend of five peach volatiles and a pear-fruit ester. AL neurons with different response patterns responded to pheromone components and plant volatiles. In males more neurons responded specifically to the main pheromone component than in females, whereas neurons responding to all three pheromone components were more abundant in females....
Tipo: Journal Article Palavras-chave: LOBE ANTENNAIRE; CYDIA MOLESTA; ARTHROPODA; HEXAPODA; TORTRICIDAE; INSECTE; PHEROMONE SEXUELLE; ATTRACTIF SEXUEL; NEURONE; ODEUR; GLOMERULE GRAPHOLITA MOLESTA; OLFACTION; ANTENNAL LOBE; PHEROMONE; INTRACELLULAR RECORDING AND STAINING.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201157fcd7c0&uri=/notices/prodinra1/2011/03/
Imagem não selecionada

Imprime registro no formato completo
Parallel reinforcement pathways for conditioned food aversions in the honeybee Inra
Wright, G.A.; Mustard, J.A.; Simcock, N.K.; Ross-Taylor, A.A.R.; McNicholas, L.D.; Popescu, A.; Marion-Poll, F..
Avoiding toxins in food is as important as obtaining nutrition. Conditioned food aversions have been studied in animals as diverse as nematodes and humans [1, 2], but the neural signaling mechanisms underlying this form of learning have been difficult to pinpoint. Honeybees quickly learn to associate floral cues with food [3], a trait that makes them an excellent model organism for studying the neural mechanisms of learning and memory. Here we show that honeybees not only detect toxins but can also learn to associate odors with both the taste of toxins and the postingestive consequences of consuming them. We found that two distinct monoaminergic pathways mediate learned food aversions in the honeybee. As for other insect species conditioned with salt or...
Tipo: Journal Article Palavras-chave: INSECTE; INSECTE UTILE; ALIMENTATION; TOXINE; APPRENTISSAGE; MEMOIRE; ODEUR; OLFACTION; DOPAMINE; SEROTONINE; SYSTME NERVEUX; ABEILLE DOMESTIQUE .
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201034c88ffd&uri=/notices/prodinra1/2011/05/
Imagem não selecionada

Imprime registro no formato completo
Post-mating sexual abstinence in a male moth Inra
Barrozo, R.; Gadenne, C.; Anton, S..
In most animals, male copulation is dependent on the detection and processing of female-produced sex pheromones. In males, a refractory post-ejaculatory interval (PEI) follows copulation, allowing them to avoid direct remating until they have replenished their reproductive tracts. In the moth Agrotis ipsilon, newly mated males show a transient inhibition of behavioral and central nervous responses to sex pheromone. Using nonpheromonal (plant) odors, pheromones and their mixture, we now show that the observed lack of pheromone response originates from differential post-mating odor processing in the brain. Although mated males still respond to plant odors alone, their response to mixtures depends on the added pheromone concentration. Below a specific...
Tipo: Journal Article Palavras-chave: PLANTE; ODEUR; LOBE ANTENNAIRE; PLASTICITE; ABSTINCENCE SEXUELLE; AGROTIS IPSILON; SYSTEME NERVEUX CENTRAL; COMPORTEMENT; LEPIDOPTERA; INSECTE LEPIDOPTERA; NOCTUIDAE; MOTH; OLFACTION; MATING; PHEROMONE; PLANT ODOUR; ANTENNAL LOBE; PLASTICITY.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010305acd70&uri=/notices/prodinra1/2011/01/
Imagem não selecionada

Imprime registro no formato completo
Pulsed odors from maize or spinach elicit orientation in european corn borer neonate larvae Inra
Piesik, D.; Rochat, D.; van der Pers, J.; Marion-Poll, F..
Lepidoptera larvae are capable of orienting towards or away from plants by using odors as cues but whether this attraction is innate or secondarily acquired remains unknown. We tested the hypothesis that European corn borer (ECB) neonate larvae express an innate attraction towards odors released from maize, and avoidance towards odors from spinach. Neonate larvae were placed on a locomotion compensator within a constant stream of humidified air that was loaded intermittently with airborne odors drawn from potted plants. The odor stream was delivered continuously or pulsed (1 to 10 sec pulses) at 40 ml/min. ECB larvae oriented toward maize odors pulsed at 2 to 6 sec but walked away from maize odors delivered at lower frequencies (9 and 10 sec pulses or to...
Tipo: Journal Article Palavras-chave: ANALYSE STATISTIQUE; ATTRACTIF; LARVE; ODEUR; EPINARD; OLFACTION; INSECTE; LEPIDOPTERA; PYRALIDAE EUROPEAN CORN BORER; LEPIDOPTERA LARVAE; NEONATE LARVAE; OSTRINIA NUBILALIS; ZEA MAYDIS; SPINACEA OLEACEA; LOCOMOTION COMPENSATOR.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20102a65498a&uri=/notices/prodinra1/2010/11/
Imagem não selecionada

Imprime registro no formato completo
Recognition of complex odors by restrained and free-flying honeybees, Apis mellifera Inra
Laloi, D.; Bailez, O.; Blight, M.M.; Roger, B.; Pham-Delègue, M.H.; Wadhams, L.J..
Complex odor recognition in the honeybee was investigated using two behavioral assays: (1) the conditioning of the proboscis extension (CPE) with restrained individuals, and (2) the observation of foragers visiting an artificial feeder in a flight room. Nine compounds, previously identified as oilseed rape flower volatiles, were tested either individually or in mixtures. Different sets of experiments were done to determine: (1) the acquisition rate of the nine compounds in the CPE assay, and (2) the discrimination of the individual compounds after conditioning to a mixture, using the CPE assay and free-flying foragers. After conditioning to a complex mixture, honeybees established a hierarchy among the components, with some of them accounting for a major...
Tipo: Journal Article Palavras-chave: FLEUR DE TOURNESOL; ABEILLE DOMESTIQUE; APIS MELLIFERA; INSECTE UTILE; ODEUR; DIFFERENCIATION HONEYBEE; APIS MELLIFERA; HYMENOPTERA; APIDAE; CONDITIONED PROBOSCIS EXTENSION; FREE-FLYING FORAGERS; OLFACTORY DISCRIMINATION; FLORAL VOLATILES.
Ano: 2000 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0400002757104387&uri=/notices/prodinra1/2010/11/
Imagem não selecionada

Imprime registro no formato completo
Responses of male Rhabdomys pumilio to urine of females in different reproductive states IRD
Bennett, L.N.; Pillay, N..
Tipo: Text Palavras-chave: ANIMAL; COMPORTEMENT SEXUEL; CYCLE DE REPRODUCTION; URINE; OESTRUS; ODEUR.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010028467
Imagem não selecionada

Imprime registro no formato completo
Selectivity improvement in a model of olfactory receptor neuron with adsorption-desorption noise Inra
Vidybida, A.K.; Usenko, A.S.; Rospars, J.P..
In biological olfactory systems, interaction of odorant molecules with olfactory receptor proteins is driven by Brownian motion. As a result, at chemical equilibrium, the total number of bound receptors changes randomly in time. Here we investigate the role of this effect, known in physics as adsorption-desorption noise, in the discriminating ability of olfactory receptor neurons. For this purpose we developed a computer program, which generates the adsorption-desorption process in a model neuron. We compared the processes resulting from two different odorants with different affinities for the receptor proteins. We took into account the threshold at which spikes are triggered and we calculated the neuronal selectivity due to the differences in the...
Tipo: Journal Article Palavras-chave: OLFACTION; RECEPTEUR; PROTEINE; NEURONE; MODELISATION; PROGRAMME INFORMATIQUE; ANALYSE STATISTIQUE; ODEUR; CONCENTRATION  OLFACTORY RECEPTOR PROTEIN; OLFACTORY RECEPTOR NEURON; ADSORPTION-DESORPTION NOISE; SELECTIVITY.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201062459e5&uri=/notices/prodinra1/2010/10/
Registros recuperados: 25
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional