An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)

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The host-plant environment of phytophagous insects directly affects various aspects of an insect's life cycle. Interestingly, relatively few insect groups have specialized in the exploitation of plants in the Cactaceae family, potentially because of the chemical and ecological challenges impose...

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Autores principales:	Corio, C., Soto, I.M., Carreira, V., Padró, J., Betti, M.I.L., Hasson, E.
Formato:	Artículo publishedVersion
Publicado:	2013
Materias:	Alkaloids Cactus Host shifts Viability Wing morphology adult alkaloid cactus concentration (composition) evolutionary biology fitness fly herbivore host plant life cycle viability
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00244066_v109_n2_p342_Corio https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00244066_v109_n2_p342_Corio_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-paper_00244066_v109_n2_p342_Corio_oai
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spelling	I28-R145-paper_00244066_v109_n2_p342_Corio_oai2024-08-16 Corio, C. Soto, I.M. Carreira, V. Padró, J. Betti, M.I.L. Hasson, E. 2013 The host-plant environment of phytophagous insects directly affects various aspects of an insect's life cycle. Interestingly, relatively few insect groups have specialized in the exploitation of plants in the Cactaceae family, potentially because of the chemical and ecological challenges imposed by these plants. The cactophilic Drosophila buzzatiiPatterson & Wheeler, 1942 is a well-studied model in evolutionary ecology, partially because of its ability to exploit toxic cactus hosts. Previous studies have shown a negative effect on performance when flies are reared in an alternative columnar cactus host of the genus Trichocereus, relative to its primary cactus host, Opuntia. These observations were attributed to the presence of alkaloids in Trichocereus tissues, a chemical deterrent to herbivores that indirectly affects Drosophila larvae; however, the putative toxic effect of alkaloids has never been tested directly in D. buzzatii. The present study is the first attempt to relate chemical extracts in Trichocereus terscheckii Britton & Rose, 1920 with detrimental effects on D. buzzatii. We assessed the effects of a crude alkaloid extract, rich in phenylethylamines, and a 'non-alkaloid fraction' on viability and adult wing morphology. Our results indicate that rearing larvae on an artificial diet containing different concentrations of the crude alkaloid extract decreased pupal viability and adult size in a concentration-dependent manner. We discuss the role of cactus alkaloids in the evolution of host-plant use in cactophilic flies. © 2013 The Linnean Society of London. Fil:Soto, I.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Carreira, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Padró, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Betti, M.I.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hasson, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_00244066_v109_n2_p342_Corio info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Biol. J. Linn. Soc. 2013;109(2):342-353 Alkaloids Cactus Host shifts Viability Wing morphology adult alkaloid cactus concentration (composition) evolutionary biology fitness fly herbivore host plant life cycle viability An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae) info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00244066_v109_n2_p342_Corio_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic	Alkaloids Cactus Host shifts Viability Wing morphology adult alkaloid cactus concentration (composition) evolutionary biology fitness fly herbivore host plant life cycle viability
spellingShingle	Alkaloids Cactus Host shifts Viability Wing morphology adult alkaloid cactus concentration (composition) evolutionary biology fitness fly herbivore host plant life cycle viability Corio, C. Soto, I.M. Carreira, V. Padró, J. Betti, M.I.L. Hasson, E. An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)
topic_facet	Alkaloids Cactus Host shifts Viability Wing morphology adult alkaloid cactus concentration (composition) evolutionary biology fitness fly herbivore host plant life cycle viability
description	The host-plant environment of phytophagous insects directly affects various aspects of an insect's life cycle. Interestingly, relatively few insect groups have specialized in the exploitation of plants in the Cactaceae family, potentially because of the chemical and ecological challenges imposed by these plants. The cactophilic Drosophila buzzatiiPatterson & Wheeler, 1942 is a well-studied model in evolutionary ecology, partially because of its ability to exploit toxic cactus hosts. Previous studies have shown a negative effect on performance when flies are reared in an alternative columnar cactus host of the genus Trichocereus, relative to its primary cactus host, Opuntia. These observations were attributed to the presence of alkaloids in Trichocereus tissues, a chemical deterrent to herbivores that indirectly affects Drosophila larvae; however, the putative toxic effect of alkaloids has never been tested directly in D. buzzatii. The present study is the first attempt to relate chemical extracts in Trichocereus terscheckii Britton & Rose, 1920 with detrimental effects on D. buzzatii. We assessed the effects of a crude alkaloid extract, rich in phenylethylamines, and a 'non-alkaloid fraction' on viability and adult wing morphology. Our results indicate that rearing larvae on an artificial diet containing different concentrations of the crude alkaloid extract decreased pupal viability and adult size in a concentration-dependent manner. We discuss the role of cactus alkaloids in the evolution of host-plant use in cactophilic flies. © 2013 The Linnean Society of London.
format	Artículo Artículo publishedVersion
author	Corio, C. Soto, I.M. Carreira, V. Padró, J. Betti, M.I.L. Hasson, E.
author_facet	Corio, C. Soto, I.M. Carreira, V. Padró, J. Betti, M.I.L. Hasson, E.
author_sort	Corio, C.
title	An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)
title_short	An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)
title_full	An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)
title_fullStr	An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)
title_full_unstemmed	An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)
title_sort	alkaloid fraction extracted from the cactus trichocereus terscheckii affects fitness in the cactophilic fly drosophila buzzatii (diptera: drosophilidae)
publishDate	2013
url	http://hdl.handle.net/20.500.12110/paper_00244066_v109_n2_p342_Corio https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00244066_v109_n2_p342_Corio_oai
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An alkaloid fraction extracted from the cactus Trichocereus terscheckii affects fitness in the cactophilic fly Drosophila buzzatii (Diptera: Drosophilidae)

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