Título : Effect of chronic exposure to sublethal doses of imidacloprid and nosema ceranae on immunity, gut microbiota, and survival of africanized honey bees
Autor(es) : Balbuena, Sofia
Castelli, Loreley
Zunino, Pablo
Antúnez, Karina
Fecha de publicación : feb-2022
Tipo de publicación: Artículo
Versión: Publicado
Publicado por: Springer Nature
Publicado en: Microbial Ecology 85(4)
Areas del conocimiento : Ciencias Naturales y Exactas
Ciencias Biológicas
Biología Celular, Microbiología
Otros descriptores : Deformed wing virus
Honey bee gut microbiota
Honey bee immunity
Honey bee survival
Nosema ceranae
Resumen : Large-scale honey bee colony losses reported around the world have been associated with intoxication with pesticides, as with the presence of pests and pathogens. Among pesticides, neonicotinoid insecticides are the biggest threat. Due to their extensive use, they can be found in all agricultural environments, including soil, water, and air, are persistent in the environment, and are highly toxic for honey bees. In addition, infection by different pests and pathogens can act synergistically, weakening bees. In this study, we investigated the effects of chronic exposure to sublethal doses of imidacloprid alone or combined with the microsporidia Nosema ceranae on the immune response, deformed wing virus infection (DWV), gut microbiota, and survival of Africanized honey bees. We found that imidacloprid affected the expression of some genes associated with immunity generating an altered physiological state, although it did not favor DWV or N. ceranae infection. The pesticide alone did not affect honey bee gut microbiota, as previously suggested, but when administered to N. ceranae infected bees, it generated significant changes. Finally, both stress factors caused high mortality rates. Those results illustrate the negative impact of imidacloprid alone or combined with N. ceranae on Africanized honey bees and are useful to understand colony losses in Latin America.
Extensión: 25 p.
URI / Handle: https://dspace-ti.anii.org.uy/jspui/handle/123456789/615
DOI: 10.1007/s00248-022-02014-8
Identificador ANII: POS_NAC_2015_1_109786
Institución responsable del proyecto: IIBCE
Financiadores: Agencia Nacional de Investigación e Innovación
Nivel de Acceso: Acceso abierto
Licencia CC: Reconocimiento 4.0 Internacional. (CC BY)
Aparece en las colecciones: Instituto de Investigaciones Biológicas Clemente Estable

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