Advanced search
Start date
Betweenand


Limited impacts of the fungus Syncephalastrum on nests of leaf-cutting ants

Full text
Author(s):
Bautz, Keminy R. ; Caixeta, Marcela C. S. ; Del Puppo, Nathalia P. ; Rodrigues, Andre ; Kloss, Thiago G. ; Elliot, Simon L.
Total Authors: 6
Document type: Journal article
Source: Fungal Ecology; v. 62, p. 7-pg., 2023-02-16.
Abstract

Leaf-cutting ants interact naturally with a range of antagonistic microorganisms, among them the soil-borne fungus Syncephalastrum. The antagonism of this fungus to the leaf-cutting ants' fungal cultivar has been shown in studies without the ant queens. So far, the impacts of this fungus on whole colonies (queenright) of leaf cutting ants are unknown. We assessed the impacts of Syncephalastrum on queenless and queenright colonies of Acromyrmex subterraneus subterraneus. In general, Syncephalastrum negatively impacted leaf cutting but not midden production or colony weight. This impact was greater in queenless colonies. Nevertheless, it did not compromise the survival of any colony. This indicates that the virulence of this fungus to leaf-cutting ant colonies may be limited in a more realistic set-up than previously reported. We propose that future laboratory studies also use queenright colonies where possible, and that the diverse species of leaf-cutting ants also be considered. (AU)

FAPESP's process: 19/03746-0 - Collaborative research: Dimensions US-São Paulo: integrating phylogeny, genetics, and chemical ecology to unravel the tangled bank of the multipartite fungus-farming ant symbiosis
Grantee:André Rodrigues
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants