Susceptibility of Atta sexdens worker ants treated with the immunosuppressant Sandimmun Neoral to Metarhizium anisopliae

The objective of this work was to evaluate if the immunosuppressant Sandimmun Neoral enhances the activity of Metarhizium anisopliae against the leaf-cutting ant Atta sexdens. The vulnerability to the pathogen was measured by comparing the mortality rate of worker ants subjected to the following tre...

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Veröffentlicht in:Pesquisa agropecuaria brasileira 2017-02, Vol.52 (2), p.133-136
Hauptverfasser: Dornelas, Aline Silvestre Pereira, Sarmento, Renato de Almeida, Pedro-Neto, Marçal, Silva, Daniella Gonçalves da, Santos, Gil Rodrigues dos, Nascimento, Mariela Otoni do, Oliveira, Cléia Almeida, Souza, Danival José de
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Sprache:eng
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Zusammenfassung:The objective of this work was to evaluate if the immunosuppressant Sandimmun Neoral enhances the activity of Metarhizium anisopliae against the leaf-cutting ant Atta sexdens. The vulnerability to the pathogen was measured by comparing the mortality rate of worker ants subjected to the following treatments: immunosuppressant+control, immunosuppressant+M. anisopliae, excipient+control, excipient+M. anisopliae, control+M. anisopliae, and control. Worker ants treated with immunosuppressant+M. anisopliae showed the highest mortality rate in comparison with those subjected to all other treatments. The use of the immunosuppressant together with entomopathogenic fungus controlled leaf-cutting ants in laboratory conditions. Resumo: O objetivo deste trabalho foi avaliar se o imunossupressor Sandimmun Neoral favorece a atividade de Metarhizium anisopliae contra a formiga cortadeira Atta sexdens. A vulnerabilidade ao patógeno foi medida ao se comparar a mortalidade de operárias expostas aos seguintes tratamentos: imunossupressor+controle, imunossupressor+M. anisopliae, excipiente+controle, excipiente+M. anisopliae, controle+M. anisopliae e controle. Operárias tratadas com imunossupressor+M. anisopliae apresentaram a maior taxa de mortalidade em comparação às submetidas a todos os outros tratamentos. O uso do imunossupressor juntamente com fungo entomopatogênico controlou as formigas cortadeiras em condições de laboratório.
ISSN:0100-204X
1678-3921
0100-204X
1678-3921
DOI:10.1590/s0100-204x2017000200008