6533b82dfe1ef96bd12908b6
RESEARCH PRODUCT
Ants medicate to fight disease
Dalial FreitakDalial FreitakSiiri-anna FuchsLiselotte SundströmNicky Peter Maria Bossubject
0106 biological sciences0303 health sciencesEcologyGenetic FitnessDiseaseFungal pathogenBiology010603 evolutionary biology01 natural sciences03 medical and health sciencesImmunityImmunologyGeneticsIngestionGeneral Agricultural and Biological SciencesEcology Evolution Behavior and SystematicsOrganism030304 developmental biologyFitness costdescription
Parasites are ubiquitous, and the ability to defend against these is of paramount importance. One way to fight diseases is self-medication, which occurs when an organism consumes biologically active compounds to clear, inhibit, or alleviate disease symptoms. Here, we show for the first time that ants selectively consume harmful substances (reactive oxygen species, ROS) upon exposure to a fungal pathogen, yet avoid these in the absence of infection. This increased intake of ROS, while harmful to healthy ants, leads to higher survival of exposed ants. The fact that ingestion of this substance carries a fitness cost in the absence of pathogens rules out compensatory diet choice as the mechanism, and provides evidence that social insects medicate themselves against fungal infection, using a substance that carries a fitness cost to uninfected individuals.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-09-16 | Evolution |