Induced resistance in tomato to whitefly Bemisia tabaci by Bion

Chemical elicitors can induce plant resistance to insects and other pests in susceptible plants. Among them, Benzo [1,2,3] thiadiazole-7-carbothioic acid-S-methyl ester (BTH) is the active ingredient in the Syngenta plant activator Bion. Induced plant resistance to the B and Q biotypes of Bemisa tab...

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Detalles Bibliográficos
Autores: Pascual, S., Nombela, Gloria, Avilés, M., Muñiz, Mariano
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/11518
Acceso en línea:http://hdl.handle.net/10261/11518
Access Level:acceso abierto
Palabra clave:Bemisia tabaci
plant resistance
Bion
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spelling Induced resistance in tomato to whitefly Bemisia tabaci by BionPascual, S.Nombela, GloriaAvilés, M.Muñiz, MarianoBemisia tabaciplant resistanceBionChemical elicitors can induce plant resistance to insects and other pests in susceptible plants. Among them, Benzo [1,2,3] thiadiazole-7-carbothioic acid-S-methyl ester (BTH) is the active ingredient in the Syngenta plant activator Bion. Induced plant resistance to the B and Q biotypes of Bemisa tabaci after foliar application of Bion to cv. Marmande tomato plants was evaluated under controlled conditions. In a free-choice experiment, adult Q-biotype B. tabaci significantly preferred control plants than plants sprayed with Bion at 0.2 g/l. In consequence, the number of eggs was lower on treated plants, although female fecundity was not affected. After 23 days, a decrease in the number of empty pupal cases was also observed in plants treated with Bion at 0.2 g/l. The effect produced by Bion applied at 0.1 g/l was not significant. In a no-choice assay, only one leaflet from every tomato plant was treated with 1 g/l Bion or with water (control plants). A clip-cage containing 5 B. tabaci females (biotipe B) was attached to each treated leaflet and to another non-treated leaflet from every plant. After 16 days, the total number of immature insects (eggs+L1+L2) on Bion-treated leaflets was significantly lower than that on water-treated leaflets from control plants. This difference was mostly due to the number of L1 larvae. The acquired resistance seemed to be local (LAR) because of the differences between Bion-treated and non-treated leaflets in the same plants, meanwhile no differences in non-treated leaflets were observed between Bion-treated and control plants.Peer reviewed200920092003info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501226612 bytesapplication/pdfhttp://hdl.handle.net/10261/11518reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/115182026-05-22T06:33:51Z
dc.title.none.fl_str_mv Induced resistance in tomato to whitefly Bemisia tabaci by Bion
title Induced resistance in tomato to whitefly Bemisia tabaci by Bion
spellingShingle Induced resistance in tomato to whitefly Bemisia tabaci by Bion
Pascual, S.
Bemisia tabaci
plant resistance
Bion
title_short Induced resistance in tomato to whitefly Bemisia tabaci by Bion
title_full Induced resistance in tomato to whitefly Bemisia tabaci by Bion
title_fullStr Induced resistance in tomato to whitefly Bemisia tabaci by Bion
title_full_unstemmed Induced resistance in tomato to whitefly Bemisia tabaci by Bion
title_sort Induced resistance in tomato to whitefly Bemisia tabaci by Bion
dc.creator.none.fl_str_mv Pascual, S.
Nombela, Gloria
Avilés, M.
Muñiz, Mariano
author Pascual, S.
author_facet Pascual, S.
Nombela, Gloria
Avilés, M.
Muñiz, Mariano
author_role author
author2 Nombela, Gloria
Avilés, M.
Muñiz, Mariano
author2_role author
author
author
dc.subject.none.fl_str_mv Bemisia tabaci
plant resistance
Bion
topic Bemisia tabaci
plant resistance
Bion
description Chemical elicitors can induce plant resistance to insects and other pests in susceptible plants. Among them, Benzo [1,2,3] thiadiazole-7-carbothioic acid-S-methyl ester (BTH) is the active ingredient in the Syngenta plant activator Bion. Induced plant resistance to the B and Q biotypes of Bemisa tabaci after foliar application of Bion to cv. Marmande tomato plants was evaluated under controlled conditions. In a free-choice experiment, adult Q-biotype B. tabaci significantly preferred control plants than plants sprayed with Bion at 0.2 g/l. In consequence, the number of eggs was lower on treated plants, although female fecundity was not affected. After 23 days, a decrease in the number of empty pupal cases was also observed in plants treated with Bion at 0.2 g/l. The effect produced by Bion applied at 0.1 g/l was not significant. In a no-choice assay, only one leaflet from every tomato plant was treated with 1 g/l Bion or with water (control plants). A clip-cage containing 5 B. tabaci females (biotipe B) was attached to each treated leaflet and to another non-treated leaflet from every plant. After 16 days, the total number of immature insects (eggs+L1+L2) on Bion-treated leaflets was significantly lower than that on water-treated leaflets from control plants. This difference was mostly due to the number of L1 larvae. The acquired resistance seemed to be local (LAR) because of the differences between Bion-treated and non-treated leaflets in the same plants, meanwhile no differences in non-treated leaflets were observed between Bion-treated and control plants.
publishDate 2003
dc.date.none.fl_str_mv 2003
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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url http://hdl.handle.net/10261/11518
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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eu_rights_str_mv openAccess
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instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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