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Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil
The eucalyptus snout beetle (ESB), Gonipterus platensis, is endemic to Australia but has become a major invasive, destructive pest of Brazilian eucalyptus plantations. Efforts to develop insecticides based on entomopathogenic fungi against ESB are limited by the lack of known virulent strains. We th...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8012584/ https://www.ncbi.nlm.nih.gov/pubmed/33790337 http://dx.doi.org/10.1038/s41598-021-86638-9 |
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author | Jordan, Carolina dos Santos, Paula Leite Oliveira, Leiliane Rodrigues dos Santos Domingues, Mauricio Magalhães Gêa, Bianca Cristina Costa Ribeiro, Murilo Fonseca Mascarin, Gabriel Moura Wilcken, Carlos Frederico |
author_facet | Jordan, Carolina dos Santos, Paula Leite Oliveira, Leiliane Rodrigues dos Santos Domingues, Mauricio Magalhães Gêa, Bianca Cristina Costa Ribeiro, Murilo Fonseca Mascarin, Gabriel Moura Wilcken, Carlos Frederico |
author_sort | Jordan, Carolina |
collection | PubMed |
description | The eucalyptus snout beetle (ESB), Gonipterus platensis, is endemic to Australia but has become a major invasive, destructive pest of Brazilian eucalyptus plantations. Efforts to develop insecticides based on entomopathogenic fungi against ESB are limited by the lack of known virulent strains. We therefore explored the virulence of indigenous Brazilian strains of major entomopathogenic fungi—Beauveria spp. and Metarhizium anisopliae—against ESB adults. We found widely varying virulence and later capacities for conidial production on infected adult cadavers. Two strains stood out, B. bassiana IBCB-240 and M. anisopliae IBCB-364, as especially lethal for ESB adults under laboratory conditions, sporulated abundantly on infected insects, and also outperformed comparable strains used in commercial mycoinsecticides. Notably, B. bassiana IBCB-240 exhibited lower LT(50) values at low inoculum levels (≤ 10(7) conidia mL(−1)) and smaller LC(50) values than M. anisopliae IBCB-364. Taken together, this study emphasizes natural variation in virulence among indigenous Beauveria and Metarhizium strains against ESB adults and identifies fungal strains with superior lethality to existing commercialized strains for managing this eucalyptus pest in Brazil. |
format | Online Article Text |
id | pubmed-8012584 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-80125842021-04-05 Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil Jordan, Carolina dos Santos, Paula Leite Oliveira, Leiliane Rodrigues dos Santos Domingues, Mauricio Magalhães Gêa, Bianca Cristina Costa Ribeiro, Murilo Fonseca Mascarin, Gabriel Moura Wilcken, Carlos Frederico Sci Rep Article The eucalyptus snout beetle (ESB), Gonipterus platensis, is endemic to Australia but has become a major invasive, destructive pest of Brazilian eucalyptus plantations. Efforts to develop insecticides based on entomopathogenic fungi against ESB are limited by the lack of known virulent strains. We therefore explored the virulence of indigenous Brazilian strains of major entomopathogenic fungi—Beauveria spp. and Metarhizium anisopliae—against ESB adults. We found widely varying virulence and later capacities for conidial production on infected adult cadavers. Two strains stood out, B. bassiana IBCB-240 and M. anisopliae IBCB-364, as especially lethal for ESB adults under laboratory conditions, sporulated abundantly on infected insects, and also outperformed comparable strains used in commercial mycoinsecticides. Notably, B. bassiana IBCB-240 exhibited lower LT(50) values at low inoculum levels (≤ 10(7) conidia mL(−1)) and smaller LC(50) values than M. anisopliae IBCB-364. Taken together, this study emphasizes natural variation in virulence among indigenous Beauveria and Metarhizium strains against ESB adults and identifies fungal strains with superior lethality to existing commercialized strains for managing this eucalyptus pest in Brazil. Nature Publishing Group UK 2021-03-31 /pmc/articles/PMC8012584/ /pubmed/33790337 http://dx.doi.org/10.1038/s41598-021-86638-9 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Jordan, Carolina dos Santos, Paula Leite Oliveira, Leiliane Rodrigues dos Santos Domingues, Mauricio Magalhães Gêa, Bianca Cristina Costa Ribeiro, Murilo Fonseca Mascarin, Gabriel Moura Wilcken, Carlos Frederico Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil |
title | Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil |
title_full | Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil |
title_fullStr | Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil |
title_full_unstemmed | Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil |
title_short | Entomopathogenic fungi as the microbial frontline against the alien Eucalyptus pest Gonipterus platensis in Brazil |
title_sort | entomopathogenic fungi as the microbial frontline against the alien eucalyptus pest gonipterus platensis in brazil |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8012584/ https://www.ncbi.nlm.nih.gov/pubmed/33790337 http://dx.doi.org/10.1038/s41598-021-86638-9 |
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