Abstract
The leaf-cutting ant Acromyrmex crassispinus is considered an important pest in forest plantations in southern Brazil. This work aimed to study the fungal community associated with A. crassispinus colonies, subjected to treatments with subdoses of granulated baits (sulfluramid), which might reduce the ability of the ants to care for their symbiotic fungus and other fungi (maybe biocontrol fungi) would take over, to prospect for potential biological control agents. Samplings of fungus gardens and dead ants allowed the identification of 195 fungal isolates, distributed in 29 families, 36 genera, and 53 species. The most frequent genera were Trichoderma (49.2%), Penicillium (13.8%), Chaetomium (6.2%), and Fusarium (3.6%). This is the first study that conducted a survey of antagonistic and entomopathogenic fungi to A. crassispinus and its symbiotic fungus, reporting for the first time the occurrence of potential biological control agents. Escovopsis weberi, Fusarium oxysporum, Rhizomucor variabilis, Trichoderma atroviride, Trichoderma harzianum, Trichoderma koningiopsis, and Trichoderma spirale are considered some of the potential biocontrol organisms.
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Data Availability
The datasets generated and analyzed during the study are available from the corresponding author on reasonable request.
Change history
25 May 2023
A Correction to this paper has been published: https://doi.org/10.1007/s00248-023-02247-1
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Acknowledgements
We thank the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for fellowship for the first author and Fundo Nacional de Controle de Pragas Florestais (FUNCEMA) for financial support. We also thank Arauco Forest Brasil company for granting the study area.
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Camargo, T.S., Nickele, M.A., Filho, W.R. et al. Fungal Community Associated with the Leaf-Cutting Ant Acromyrmex crassispinus (Hymenoptera: Formicidae) Colonies: a Search for Potential Biocontrol Agents. Microb Ecol 86, 1281–1291 (2023). https://doi.org/10.1007/s00248-023-02217-7
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DOI: https://doi.org/10.1007/s00248-023-02217-7