Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus

Beauveria bassiana, which is effective against a variety of insect pests, is the most researched and commercialised fungal biopesticide. Laboratory and screenhouse studies have revealed great potential of this entomopathogenic fungus for use against the banana weevil, Cosmopolites sordidus, in banan...

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Autores principales: Akello, J., Dubois, T., Coyne, Danny L., Hillnhűtter, C.
Formato: Conference Paper
Lenguaje:Inglés
Publicado: 2008
Materias:
Acceso en línea:https://hdl.handle.net/10568/92281
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author Akello, J.
Dubois, T.
Coyne, Danny L.
Hillnhűtter, C.
author_browse Akello, J.
Coyne, Danny L.
Dubois, T.
Hillnhűtter, C.
author_facet Akello, J.
Dubois, T.
Coyne, Danny L.
Hillnhűtter, C.
author_sort Akello, J.
collection Repository of Agricultural Research Outputs (CGSpace)
description Beauveria bassiana, which is effective against a variety of insect pests, is the most researched and commercialised fungal biopesticide. Laboratory and screenhouse studies have revealed great potential of this entomopathogenic fungus for use against the banana weevil, Cosmopolites sordidus, in banana. However, impractical field delivery methods and high costs associated with the application of B. bassiana against C. sordidus prevent its use and commercialisation in banana fields. Our research has revealed that B. bassiana can colonise internal banana tissues for at least four months after tissue-cultured plantlets are dipped in a spore suspension. The type of banana cultivar did not affect colonisation by Beauveria bassiana and, even when elevated B. bassiana doses were used, plant growth was not reduced. In a set of three screenhouse experiments, larval mycosis rates in B. bassiana-treated plants were 23.5-88.9% and the presence of the fungus inside treated plants led to a reduction in larval damage of up to >50%. Application of B. bassiana as an artificial endophyte inside banana plants could circumvent bottlenecks associated with its application as a conventional biopesticide, because i) it kills the damaging larval stages inside the plant, ii) it is protected from adverse biotic and abiotic factors, iii) little inoculum is required, drastically reducing its cost, and iv) farmers do not need to apply the biological control organism themselves, as the technology is easily transferable to a commercial tissue culture producer.
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spelling CGSpace922812023-02-15T06:34:52Z Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus Akello, J. Dubois, T. Coyne, Danny L. Hillnhűtter, C. colonisation endophytic entomopathogen inoculation musa tissue culture Beauveria bassiana, which is effective against a variety of insect pests, is the most researched and commercialised fungal biopesticide. Laboratory and screenhouse studies have revealed great potential of this entomopathogenic fungus for use against the banana weevil, Cosmopolites sordidus, in banana. However, impractical field delivery methods and high costs associated with the application of B. bassiana against C. sordidus prevent its use and commercialisation in banana fields. Our research has revealed that B. bassiana can colonise internal banana tissues for at least four months after tissue-cultured plantlets are dipped in a spore suspension. The type of banana cultivar did not affect colonisation by Beauveria bassiana and, even when elevated B. bassiana doses were used, plant growth was not reduced. In a set of three screenhouse experiments, larval mycosis rates in B. bassiana-treated plants were 23.5-88.9% and the presence of the fungus inside treated plants led to a reduction in larval damage of up to >50%. Application of B. bassiana as an artificial endophyte inside banana plants could circumvent bottlenecks associated with its application as a conventional biopesticide, because i) it kills the damaging larval stages inside the plant, ii) it is protected from adverse biotic and abiotic factors, iii) little inoculum is required, drastically reducing its cost, and iv) farmers do not need to apply the biological control organism themselves, as the technology is easily transferable to a commercial tissue culture producer. 2008 2018-04-24T08:40:25Z 2018-04-24T08:40:25Z Conference Paper https://hdl.handle.net/10568/92281 en Limited Access Akello, J., Dubois, T., Coyne, D. & Hillnhűtter, C. (2008). Beauveria bassiana as an Artificial Endophyte in Tissue-cultured Banana Plants: a Novel Way to Combat the Banana Weevil Cosmopolites sordidus, 41st Annual Meeting of the Society for Invertebrate Pathology and 9th International Conference on Bacillus thuringiensis, Conventry, 3-7 August, 2008. United Kingdom.
spellingShingle colonisation
endophytic
entomopathogen
inoculation
musa
tissue culture
Akello, J.
Dubois, T.
Coyne, Danny L.
Hillnhűtter, C.
Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus
title Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus
title_full Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus
title_fullStr Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus
title_full_unstemmed Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus
title_short Beauveria bassiana as an artificial endophyte in tissuecultured banana (Musa spp.) plants: a novel way to combat the banana weevil Cosmopolites sordidus
title_sort beauveria bassiana as an artificial endophyte in tissuecultured banana musa spp plants a novel way to combat the banana weevil cosmopolites sordidus
topic colonisation
endophytic
entomopathogen
inoculation
musa
tissue culture
url https://hdl.handle.net/10568/92281
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