Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants

Autores
Coviella, Carlos E.; Stipanovic, Robert D.; Trumble, John T.
Año de publicación
2001
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
Fil: Coviella, Carlos E. Universidad Nacional de Luján; Argentina.
Plant allocation to defensive compounds in response to growth in elevated atmospheric CO2 in combination with two levels of nitrogen was examined. The aim was to discover if allocation patterns of transgenic plants containing genes for defensive chemicals which had not evolved in the species would respond as predicted by the Carbon Nutrient Balance (CNB) hypothesis. Cotton plants (Gossypium hirsutum L.) were sown inside 12 . Six of them were maintained at an elevated CO2 level of 900 mmol mol 1 and the other six at the current level of ;370 mmol mol 1. Half the plants in each chamber were from a transgenic line producing Bacillus thuringiensis (Bt) toxin and the others were from a near isogenic line without the Bt gene. The allocation to total phenolics, condensed tannins, and gossypol and related terpenoid aldehydes was measured. All the treatmentswere bioassayed against a non-target insect herbivore found on cotton, Spodoptera exigua (Hu¨ bner) (Lepidoptera: Noctuidae). Plants had lower N concentrations and higher C:N ratios when grown in elevated CO2. Carbon defensive compounds increased in elevated CO2, low N availability or both. The increase in these compounds in elevated CO2 and low N, adversely affected growth and survival of S. exigua. The production of the nitrogen-based toxin was affected by an interaction between CO2 and N; elevated CO2 decreased N allocation to Bt, but the reduction was largely alleviated by the addition of nitrogen. The CNB hypothesis accurately predicted only some of the results, and may require revision. These data indicate that for the future expected elevated CO2 concentrations, plant allocation to defensive compounds will be affected enough to impact plant–herbivore interactions.
Materia
Carbon dioxide
CO2
Cotton
Global change
Gossypium hirsutum
Plant allocation
Plant–insect interactions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
REDIUNLU (UNLu)
Institución
Universidad Nacional de Luján
OAI Identificador
oai:ri.unlu.edu.ar:rediunlu/819

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oai_identifier_str oai:ri.unlu.edu.ar:rediunlu/819
network_acronym_str REDIUNLU
repository_id_str w
network_name_str REDIUNLU (UNLu)
spelling Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plantsCoviella, Carlos E.Stipanovic, Robert D.Trumble, John T.Carbon dioxideCO2CottonGlobal changeGossypium hirsutumPlant allocationPlant–insect interactionsFil: Coviella, Carlos E. Universidad Nacional de Luján; Argentina.Plant allocation to defensive compounds in response to growth in elevated atmospheric CO2 in combination with two levels of nitrogen was examined. The aim was to discover if allocation patterns of transgenic plants containing genes for defensive chemicals which had not evolved in the species would respond as predicted by the Carbon Nutrient Balance (CNB) hypothesis. Cotton plants (Gossypium hirsutum L.) were sown inside 12 . Six of them were maintained at an elevated CO2 level of 900 mmol mol 1 and the other six at the current level of ;370 mmol mol 1. Half the plants in each chamber were from a transgenic line producing Bacillus thuringiensis (Bt) toxin and the others were from a near isogenic line without the Bt gene. The allocation to total phenolics, condensed tannins, and gossypol and related terpenoid aldehydes was measured. All the treatmentswere bioassayed against a non-target insect herbivore found on cotton, Spodoptera exigua (Hu¨ bner) (Lepidoptera: Noctuidae). Plants had lower N concentrations and higher C:N ratios when grown in elevated CO2. Carbon defensive compounds increased in elevated CO2, low N availability or both. The increase in these compounds in elevated CO2 and low N, adversely affected growth and survival of S. exigua. The production of the nitrogen-based toxin was affected by an interaction between CO2 and N; elevated CO2 decreased N allocation to Bt, but the reduction was largely alleviated by the addition of nitrogen. The CNB hypothesis accurately predicted only some of the results, and may require revision. These data indicate that for the future expected elevated CO2 concentrations, plant allocation to defensive compounds will be affected enough to impact plant–herbivore interactions.Journal of Experimental Botany2020-11-03T17:50:51Z2020-11-03T17:50:51Z2001-01-29Articleinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdf1460-2431http://ri.unlu.edu.ar/xmlui/handle/rediunlu/819enspa;Vol. 53, No. 367, pp. 323–331, February 2002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:REDIUNLU (UNLu)instname:Universidad Nacional de Luján2025-09-29T14:29:45Zoai:ri.unlu.edu.ar:rediunlu/819instacron:UNLuInstitucionalhttps://ri.unlu.edu.arUniversidad públicaNo correspondehttps://ri.unlu.edu.ar/oaivcano@unlu.edu.ar;fgutierrez@mail.unlu.edu.ar;faquilinogutierrez@gmail.com ArgentinaNo correspondeNo correspondeNo correspondeopendoar:w2025-09-29 14:29:45.643REDIUNLU (UNLu) - Universidad Nacional de Lujánfalse
dc.title.none.fl_str_mv Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
title Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
spellingShingle Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
Coviella, Carlos E.
Carbon dioxide
CO2
Cotton
Global change
Gossypium hirsutum
Plant allocation
Plant–insect interactions
title_short Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
title_full Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
title_fullStr Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
title_full_unstemmed Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
title_sort Plant allocation to defensive compounds: interactions between elevated CO2 and nitrogen in transgenic cotton plants
dc.creator.none.fl_str_mv Coviella, Carlos E.
Stipanovic, Robert D.
Trumble, John T.
author Coviella, Carlos E.
author_facet Coviella, Carlos E.
Stipanovic, Robert D.
Trumble, John T.
author_role author
author2 Stipanovic, Robert D.
Trumble, John T.
author2_role author
author
dc.subject.none.fl_str_mv Carbon dioxide
CO2
Cotton
Global change
Gossypium hirsutum
Plant allocation
Plant–insect interactions
topic Carbon dioxide
CO2
Cotton
Global change
Gossypium hirsutum
Plant allocation
Plant–insect interactions
dc.description.none.fl_txt_mv Fil: Coviella, Carlos E. Universidad Nacional de Luján; Argentina.
Plant allocation to defensive compounds in response to growth in elevated atmospheric CO2 in combination with two levels of nitrogen was examined. The aim was to discover if allocation patterns of transgenic plants containing genes for defensive chemicals which had not evolved in the species would respond as predicted by the Carbon Nutrient Balance (CNB) hypothesis. Cotton plants (Gossypium hirsutum L.) were sown inside 12 . Six of them were maintained at an elevated CO2 level of 900 mmol mol 1 and the other six at the current level of ;370 mmol mol 1. Half the plants in each chamber were from a transgenic line producing Bacillus thuringiensis (Bt) toxin and the others were from a near isogenic line without the Bt gene. The allocation to total phenolics, condensed tannins, and gossypol and related terpenoid aldehydes was measured. All the treatmentswere bioassayed against a non-target insect herbivore found on cotton, Spodoptera exigua (Hu¨ bner) (Lepidoptera: Noctuidae). Plants had lower N concentrations and higher C:N ratios when grown in elevated CO2. Carbon defensive compounds increased in elevated CO2, low N availability or both. The increase in these compounds in elevated CO2 and low N, adversely affected growth and survival of S. exigua. The production of the nitrogen-based toxin was affected by an interaction between CO2 and N; elevated CO2 decreased N allocation to Bt, but the reduction was largely alleviated by the addition of nitrogen. The CNB hypothesis accurately predicted only some of the results, and may require revision. These data indicate that for the future expected elevated CO2 concentrations, plant allocation to defensive compounds will be affected enough to impact plant–herbivore interactions.
description Fil: Coviella, Carlos E. Universidad Nacional de Luján; Argentina.
publishDate 2001
dc.date.none.fl_str_mv 2001-01-29
2020-11-03T17:50:51Z
2020-11-03T17:50:51Z
dc.type.none.fl_str_mv Article
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv 1460-2431
http://ri.unlu.edu.ar/xmlui/handle/rediunlu/819
identifier_str_mv 1460-2431
url http://ri.unlu.edu.ar/xmlui/handle/rediunlu/819
dc.language.none.fl_str_mv en
spa
language_invalid_str_mv en
language spa
dc.relation.none.fl_str_mv ;Vol. 53, No. 367, pp. 323–331, February 2002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Journal of Experimental Botany
publisher.none.fl_str_mv Journal of Experimental Botany
dc.source.none.fl_str_mv reponame:REDIUNLU (UNLu)
instname:Universidad Nacional de Luján
reponame_str REDIUNLU (UNLu)
collection REDIUNLU (UNLu)
instname_str Universidad Nacional de Luján
repository.name.fl_str_mv REDIUNLU (UNLu) - Universidad Nacional de Luján
repository.mail.fl_str_mv vcano@unlu.edu.ar;fgutierrez@mail.unlu.edu.ar;faquilinogutierrez@gmail.com
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