Wood ants use resin to protect themselves against pathogens

Détails

Ressource 1Télécharger: BIB_F99C3188AFCA.P001.pdf (144.04 [Ko])
Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_F99C3188AFCA
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Wood ants use resin to protect themselves against pathogens
Périodique
Proceedings of the Royal Society of London Series B-Biological Sciences
Auteur(s)
Chapuisat M., Oppliger Anne, Magliano P., Christe P.
ISSN
0962-8452[print], 0962-8452[linking]
Statut éditorial
Publié
Date de publication
2007
Peer-reviewed
Oui
Volume
274
Numéro
1621
Pages
2013-2017
Langue
anglais
Résumé
Social life is generally associated with an increased exposure to pathogens and parasites, due to factors such as high population density, frequent physical contact and the use of perennial nest sites. However, sociality also permits the evolution of new collective behavioural defences. Wood ants, Formica paralugubris, commonly bring back pieces of solidified coniferous resin to their nest. Many birds and a few mammals also incorporate green plant material into their nests. Collecting plant material rich in volatile compounds might be an efficient way to fight bacteria and fungi. However, no study has demonstrated that this behaviour has a positive effect on survival. Here, we provide the first experimental evidence that animals using plant compounds with antibacterial and antifungal properties survive better when exposed to detrimental micro-organisms. The presence of resin strongly improves the survival of F. paralugubris adults and larvae exposed to the bacteria Pseudomonas fluorescens, and the survival of larvae exposed to the entomopathogenic fungus Metarhizium anisopliae. These results show that wood ants capitalize on the chemical defences which have evolved in plants to collectively protect themselves against pathogens.
Mots-clé
Animals, Ants/drug effects, Ants/microbiology, Behavior, Animal, Immunity, Innate/drug effects, Larva/drug effects, Larva/microbiology, Metarhizium/drug effects, Metarhizium/physiology, Microbial Sensitivity Tests, Pseudomonas fluorescens/drug effects, Pseudomonas fluorescens/physiology, Resins, Plant/pharmacology, Social Behavior
Pubmed
Web of science
Création de la notice
24/01/2008 20:14
Dernière modification de la notice
03/03/2018 22:54
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