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Effets de facteurs sociaux sur la résistance de l’abeille Apis mellifera au parasite Nosema ceranae Inra
Houstin Le Boedec, J.F..
--BUTS DE L'ETUDE :Etudier les effets du nombre d’abeilles, de la présence de QMP (phéromone mandibulaire de la reine) et de la résistance naturelle au Varroa sur la résistance de l’abeille Apis mellifera au parasite Nosema ceranae.--METHODES & TECHNIQUES :Expériences en laboratoire dans des cagettes avec les différents facteurs. Analyse statistique avec le logiciel XLStat.--RESULTATS :Le Nosema augmente la mortalité dans les groupes de 30 et 100 abeilles avec ou sans QMP. La QMP diminue la mortalité des cagettes de 5 abeilles et améliore leur résistance au parasite. Les cagettes de 5 abeilles ont une mortalité plus élevée. Pas d’effets des facteurs sociaux sur la consommation de nourriture, ni sur le nombre de spores. Pas de différence de mortalité et...
Tipo: Thesis Palavras-chave: ABEILLE DOMESTIQUE; INSECTE SOCIAL; RESISTANCE; PARASITE; NOURRITURE; CONSOMMATION; SPORE; PHEROMONE MANDIBULAIRE; REINE HONEYBEE; SOCIAL INSECT; FOOD; CONSUMPTION; MANDIBULAR PHEROMONE; QUEEN.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010fbd8e8cb&uri=/notices/prodinra1/2010/12/
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New insights into honey bee (Apis mellifera) pheromone communication. Is the queen mandibular pheromone alone in colony regulation Inra
Maisonnasse, A.; ALAUX, C.; Beslay, D.; Crauser, D.; Gines, C.; Plettner, E.; Le Conte, Y..
BackgroundIn social insects, the queen is essential to the functioning and homeostasis of the colony. This influence has been demonstrated to be mediated through pheromone communication. However, the only social insect for which any queen pheromone has been identified is the honey bee (Apis mellifera) with its well-known queen mandibular pheromone (QMP). Although pleiotropic effects on colony regulation are accredited to the QMP, this pheromone does not trigger the full behavioral and physiological response observed in the presence of the queen, suggesting the presence of additional compounds. We tested the hypothesis of a pheromone redundancy in honey bee queens by comparing the influence of queens with and without mandibular glands on worker behavior and...
Tipo: Journal Article Palavras-chave: ABEILLE DOMESTIQUE; INSECTE SOCIAL; COMMUNICATION CHIMIQUE; REGULATION DE LA COLONIE; PHEROMONE MANDIBULAIRE; REINE HONEYBEE; SOCIAL INSECT; CHEMICAL COMMUNICATION; COLONY REGULATION; MANDIBULAR PHEROMONE; QUEEN.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20107dd8a7f2&uri=/notices/prodinra1/2010/11/
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Pathological effects of the microsporidium Nosema ceranae on honey bee queen physiology (Apis mellifera) Inra
ALAUX, C.; Folschweiller, M.; McDonnell, C.; Beslay, D.; Cousin, M.; Dussaubat, C.; Brunet, J.L.; Le Conte, Y..
Nosema ceranae, a microsporidian parasite originally described in the Asian honey bee Apis cerana, has recently been found to be cross-infective and to also parasitize the European honey bee Apis mellifera. Since this discovery, many studies have attempted to characterize the impact of this parasite in A. mellifera honey bees. Nosema species can infect all colony members, workers, drones and queens, but the pathological effects of this microsporidium has been mainly investigated in workers, despite the prime importance of the queen, who monopolizes the reproduction and regulates the cohesion of the society via pheromones. We therefore analyzed the impact of N. ceranae on queen physiology. We found that infection by N. ceranae did not affect the fat body...
Tipo: Journal Article Palavras-chave: MICROSPORIDIE; PARASITE; REINE; SANTE; PHYSIOLOGIE; CORPS GRAS; ENERGIE; VITELLOGENINE; FERTILITE; LONGEVITE; ANTIOXIDANT; PHEROMONE MANDIBULAIRE MICROSPORIDIA; QUEEN; HEALTH; PHYSIOLOGY; FAT BODY; ENERGY; VITELLOGENIN; FERTILITY; LONGEVITY; MANDIBULAR PHEROMONE; PHEROMONE; HONEY BEE QUEEN; VITELLOGENIN; QUEEN MANDIBULAR PHEROMONES; ANTIOXIDANT CAPACITY.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20116cf9b1bf&uri=/notices/prodinra1/2011/04/
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