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| Registros recuperados: 15 | |
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| ALAUX, C.; Brunet, J.L.; Dussaubat, C.; Mondet, F.; Tchamitchian, S.; Cousin, M.; Brillard, J.; Baldy, A.; Belzunces, L.; Le Conte, Y.. |
| Global pollinators, like honeybees, are declining in abundance and diversity, which can adversely affect natural ecosystems and agriculture. Therefore, we tested the current hypotheses describing honeybee losses as a multifactorial syndrome, by investigating integrative effects of an infectious organism and an insecticide on honeybee health. We demonstrated that the interaction between the microsporidia Nosema and a neonicotinoid (imidacloprid) significantly weakened honeybees. In the short term, the combination of both agents caused the highest individual mortality rates and energetic stress. By quantifying the strength of immunity at both the individual and social levels, we showed that neither the haemocyte number nor the phenoloxidase activity of... |
| Tipo: Journal Article |
Palavras-chave: ABEILLE DOMESTIQUE; SANTE; MICROSPORIDIE; INSECTICIDE; NEONICOTINOIDE; IMIDACLOPRIDE; SYNERGIE; MORTALITE; STRESS ENERGETIQUE; IMMUNITE INDIVIDUELLE; IMMUNITE DE LA COLONIE; LUTTE INTEGREE HONEYBEE; HEALTH; MICROSPORIDIA; NEONOCOTINOID; IMIDACLOPRID; SYNERGY; MORTALITY; ENERGETIC STRESS; INDIVIDUAL IMMUNITY; SOCIAL IMMUNITY; GLUCOSE OXIDASE; IPM. |
| Ano: 2010 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010b2d84f1e&uri=/notices/prodinra1/2010/11/ |
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| Rochat, D.; Mohammadpoor, K.; Malosse, C.; Avand-Faghih, A.; Lettere, M.; Beauhaire, J.; Morin, J.P.; Pezier, A.; Renou, M.; Abdollahi, G.A.. |
| Laboratory and field investigations were carried out to characterize the chemical communication system of the date palm fruit stalk borer, Oryctes elegans, and to develop pheromone-based trapping in Eastern Iran. Adults of both sexes feeding on date palm pieces attracted conspecifics, whereas date palm alone was minimally attractive. Males were twice as attractive as females. More beetles were captured at the palm crown than at ground level. Odors from adults feeding on sugarcane were sampled and analyzed by gas chromatography and mass spectrometry. Whereas females did not emit sex specific volatiles, males emitted a blend of 4-methyloctanoic acid (1: major component) and ethyl 4–methyloctanoate (2), occasionally mixed with minor components:... |
| Tipo: Journal Article |
Palavras-chave: COLEOPTERA; SCARABEIDAE; ORYCTES; PHEROMONE D'AGGREGATION; PIEGEAGE AU CHAMP; SYNERGIE; ORYCTES ELEGANS COLEOPTERA; SCARABAEIDAE; ORYCTES; AGGREGATION PHEROMONE; EAG; FIELD TRAPPING; DATE PALM; SYNERGY. |
| Ano: 2004 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0500029174109976&uri=/notices/prodinra1/2010/11/ |
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| Vernenghi, Annie; Ravisé, André; Einhorn, J.; Kunesch, G.; Malosse, C.. |
| Deux cultivars de tomates de phénotype Saint-Pierre, isogéniques pour la résistance à la verticilliose et différents par celle au mildiou (et à PHYTOPHTHORA PARASITICA Dast.), sont inoculés par P. PARASITICA et par VERTICILLIUM ALBO-ATRUM Reinke et Berth. Aux réactions de défense correspond l'accumulation, dans les tissus, de sesquiterpènes, de composés phénoliques, de tomatine et de dérivés oxygénés de linoléate de méthyle. Les synthèses de ces substances chez l'hôte sont modulées selon les cultivars et les parasites confrontés. Les études d'inhibition in vitro de P. PARASITICA révèlent une importante synergie entre des diénols d'une part, et des produits phénoliques et la tomatine d'autre part. |
| Tipo: Text |
Palavras-chave: TOMATE; PLANTE HOTE; RESISTANCE; VERTICILLIOSE; ACCUMULATION; COMPOSE PHENOLIQUE; PHYTOALEXINE; ALCALOIDE; SYNERGIE; METHODE D'ANALYSE; DIENOL; MILDIOU; TEST BIOLOGIQUE; SM; RMN; INFECTION CRYPTOGAMIQUE; CULTIVAR ISOGENIQUE; SESQUITERPENE; TOMATINE; INHIBITION IN VITRO VEG SOLANACEAE; LYCOPERSICON ESCULENTUM. |
| Ano: 1986 |
URL: http://www.documentation.ird.fr/hor/fdi:23233 |
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| Registros recuperados: 15 | |
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