These authors contributed equally to the work.
Gut microbiome dysbiosis and honeybee health
Article first published online: 16 MAR 2011
© 2011 Blackwell Verlag, GmbH
Journal of Applied Entomology
Volume 135, Issue 7, pages 524–533, August 2011
How to Cite
Hamdi, C., Balloi, A., Essanaa, J., Crotti, E., Gonella, E., Raddadi, N., Ricci, I., Boudabous, A., Borin, S., Manino, A., Bandi, C., Alma, A., Daffonchio, D. and Cherif, A. (2011), Gut microbiome dysbiosis and honeybee health. Journal of Applied Entomology, 135: 524–533. doi: 10.1111/j.1439-0418.2010.01609.x
- Issue published online: 6 JUL 2011
- Article first published online: 16 MAR 2011
- Received: October 13, 2010; accepted: December 23, 2010.
- biological control;
- gut homeostasis;
- microbial climax community;
Since a few decades, apiculture is facing important economic losses worldwide with general major consequences in many areas of agriculture. A strong attention has been paid towards the phenomenon named Colony Collapse Disorder in which colonies suddenly disappear with no clear explanations. Honeybee colonies can be affected by abiotic factors, such as environmental pollution or insecticide applications for agricultural purposes. Also biotic stresses cause colony losses, including bacterial (e.g. Paenibacillus larvae) and fungal (e.g. Ascosphaera apis) pathogens, microsporidia (e.g. Nosema apis), parasites (i.e. Varroa destructor) and several viruses. In the light of recent research, intestinal dysbiosis, considered as the relative disproportion of the species within the native microbiota, has shown to affect human and animal health. In arthropods, alteration of the gut microbial climax community has been shown to be linked to health and fitness disequilibrium, like in the medfly Ceratitis capitata for which low mate competitiveness is determined by a gut microbial community imbalance. According to these observations, it is possible to hypothesize that dysbiosis may have a role in disease occurrence also in honeybees. Here we aim to discuss the current knowledge on dysbiosis in the honeybee and its relation with honeybee health by reviewing the investigations of the microbial diversity associated to honeybees and the recent experiments performed to control bee diseases by microbial symbionts. We conclude that, despite the importance of a good functionality of the associated microbiota in preserving insect health has been proved, the mechanisms involved in honeybee gut dysbiosis are still unknown. Accurate in vitro, in vivo and in field investigations are required under healthy, diseased and stressed conditions for the host.