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A review of methods for discrimination of honey bee populations as applied to European beekeeping Inra
Bouga, M.; ALAUX, C.; Bienkowska, M.; Büchler, R.; Carreck, N.L.; Cauia, E.; Chlebo, R.; Dahle, B.; Dall'Olio, R.; De la Rúa, P.; Gregorc, A.; Ivanova, E.; Kence, A.; Kence, M.; Kezic, N.; Kiprijanovska, H.; Kozmus, P.; Kryge, P.; Le Conte, Y.; Lodesani, M.; Murilhas, A.M.; Siceanu, A.; Soland, G.; Uzunov, A.; Wilde, J..
Here, scientists from 19 European countries, most of them collaborating in Working Group 4: “Diversity and Vitality” of COST Action FA 0803“Prevention of honey bee COlony LOSSes” (COLOSS), review the methodology applied in each country for discriminating between honey beepopulations. Morphometric analyses (classical and geometric) and different molecular markers have been applied. Even if the approach hasbeen similar, however, different methodologies regarding measurements, landmarks or molecular markers may have been used, as well asdifferent statistical procedures. There is therefore the necessity to establish common methods in all countries in order to have results that canbe directly compared. This is one of the goals of WG4 of the COLOSS project
Tipo: Journal Article Palavras-chave: ABEILLE DOMESTIQUE; INSECTE SOCIAL; APICULTURE; SOUS-ESPECE; MORPHOMETRIE; ADN; ISOENZYME; MARQUEUR MOLECULAIRE; METHODOLOGIE; SYSTEMATIQUE; DIAGNOSE MOLECULAR MARKER; METHODOLOGY; SYSTEMATICS; DIAGNOSIS; HONEYBEE; BEEKEEPING; SUB-SPECIES; MORPHOMETRICS; DNA; ISOENZYMES.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011a0114f97&uri=/notices/prodinra1/2011/04/
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Diet effects on honeybee immunocompetence Inra
ALAUX, C.; Ducloz, F.; Crauser, D.; Le Conte, Y..
The maintenance of the immune system can be costly, and a lack of dietary protein can increase the susceptibility of organisms to disease. However, few studies have investigated the relationship between protein nutrition and immunity in insects. Here, we tested in honeybees (Apis mellifera) whether dietary protein quantity (monofloral pollen) and diet diversity (polyfloral pollen) can shape baseline immunocompetence (IC) by measuring parameters of individual immunity (haemocyte concentration, fat body content and phenoloxidase activity) and glucose oxidase (GOX) activity, which enables bees to sterilize colony and brood food, as a parameter of social immunity. Protein feeding modified both individual and social IC but increases in dietary protein quantity...
Tipo: Journal Article Palavras-chave: INSECTE SOCIAL; SYSTEME IMMUNITAIRE; REGIME ALIMENTAIRE; RESSOURCE ALIMENTAIRE SOCIAL INSECT; HONEYBEE; DIET; POLLEN; POLYFLORAL POLLEN; PROTEIN; DISEASE; IMMUNOCOMPETENCE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20109faf5aef&uri=/notices/prodinra1/2010/11/
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Interactions between Nosema microspores and a neonicotinoid weaken honeybees (Apis mellifera) Inra
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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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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Pheromones in a Superorganism : From Gene to Social Regulation Inra
ALAUX, C.; Maisonnasse, A.; Le Conte, Y..
Analogous to the importance of hormones in controlling organism homoeostasis, pheromones play a major role in the regulation of group homoeostasis at the social level. In social insects, pheromones coordinate the association of “unitary” organisms into a coherent social unit or so called “superorganism.” For many years, honey bees have been a convincing model for studying pheromone regulation of social life. In addition, with the recent sequencing of its genome, a global view of pheromone communication is starting to emerge, and it is now possible to decipher this complex chemical language from the molecular to the social level. We review here the different pheromones regulating the main biological functions of the superorganism and detail their respective...
Tipo: Journal Article Palavras-chave: SOCIETE ANIMALE; INSECTE SOCIAL; DIVISION DU TRAVAIL; REGULATION PHYSIOLOGIQUE; REPRODUCTION; LONGEVITE; REGULATION COMPORTEMENTALE; DEFENCE; REGULATION GENIQUE; PHEROMONE; EXPRESSION GENIQUE HONEY BEE; DIVISION OF LABOR; SOCIAL REGULATION; GENE EXPRESSION; TRANSCRIPTION FACTOR; CIS-REGULATORY ELEMENT; JUVENILE HORMONE; VITELLOGENIN.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011fb3b2963&uri=/notices/prodinra1/2011/04/
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Social immunity in honeybees (Apis mellifera): transcriptome analysis of varroa-hygienic behaviour Inra
Le Conte, Y.; ALAUX, C.; Martin, J.F.; Harbo, J.R.; Harris, J.W.; Dantec, C.; Séverac, D.; Cros-Arteil, S.; Navajas Navarro, M..
Honeybees have evolved a social immunity consisting of the cooperation of individuals to decrease disease in the hive. We identified a set of genes involved in this social immunity by analysing the brain transcriptome of highly varroa-hygienic bees, who efficiently detect and remove brood infected with the Varroa destructor mite. The function of these candidate genes does not seem to support a higher olfactory sensitivity in hygienic bees, as previously hypothesized. However, comparing their genomic profile with those from other behaviours suggests a link with brood care and the highly varroa-hygienic Africanized honeybees. These results represent a firststep toward the identification of genes involved in social immunity and thus provide first insights...
Tipo: Journal Article Palavras-chave: PARASITE; INSECTE SOCIAL; IMMUNITE SOCIALE; COMPORTEMENT HYGIENIQUE; EXPRESSION GENIQUE HONEYBEE; SOCIAL IMMUNITY; HYGIENIC BEHAVIOUR; VARROA; GENE EXPRESSION.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011f6e141fc&uri=/notices/prodinra1/2011/06/
Registros recuperados: 7
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