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- Title
Ants suppressing plant pathogens: a review.
- Authors
Offenberg, Joachim; Damgaard, Christian
- Abstract
Ant–plant mutualisms are usually regarded as driven by ants defending plants against herbivores in return for plant‐produced food rewards and housing. However, ants may provide additional services. In a review of published studies on ant–pathogen–plant interactions, we investigated whether ants' extensive hygiene measures, including the use of ant‐produced antibiotics, extend to their host plants and reduce plant pathogen loads. From 30 reported species combinations, we found that the presence of ants lead to reduced pathogen levels in 18 combinations and to increased levels in 6. On average, ants significantly reduced pathogen incidence with 59%. This effect size did not differ significantly from effect sizes reported from meta‐analyses on herbivore protection. Thus, pathogen and herbivore protection could be of equal importance in ant–plant mutualisms. Considering the abundance of these interactions, ecological impacts are potentially high. Furthermore, awareness of this service may stimulate the development of new measures to control plant diseases in agriculture. It should be noted, though, that studies were biased toward tropical ant–plant symbioses and that the literature in the field is limited at present. Future research on plant pathogens is needed to enhance our understanding of ant–plant mutualisms and their evolution.
- Subjects
PHYTOPATHOGENIC microorganisms; ANTS; PLANT diseases; HOST plants; ECOLOGICAL impact
- Publication
Oikos, 2019, Vol 128, Issue 12, p1691
- ISSN
0030-1299
- Publication type
Article
- DOI
10.1111/oik.06744