Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize

Autores
Cohen, Ana Carmen; Travaglia, Claudia Noemi; Bottini, Ambrosio Rubén; Piccoli, Patricia Noemí
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Azospirillum spp. are plant growth promoting bacteria (PGPB) that enhance growth by several mechanisms, including the production of phytohormones such as abscisic acid (ABA), indole-3-acetic acid (IAA), and gibberellins (GAs). Their presence may also alleviate plant water stress. In the present paper, the effects of Azospirillum lipoferum in maize (Zea mays L.) plants treated with inhibitors of ABA and GA synthesis, fluridone (F) and prohexadione-Ca (P), respectively, and either submitted to drought stress or provided sufficient water, were analysed. Fluridone diminished the growth of plants that had been well watered, in a manner similar to drought, but inoculation with Azospirillum completely reversed this effect. The relative water content of the F-treated and drought-stressed plants was significantly lower (even though drought-stressed plants had been allowed to recover for one week), and this effect was completely neutralized by Azospirillum. These results were correlated with ABA levels assessed by GC-EIMS. Growth was diminished in droughtsubmitted plants treated with P, alone or combined with F, even though ABA levels were enhanced, suggesting that Gas produced by the bacterium are also important in stress alleviation. The results suggest that both ABA and GAs contribute to water-stress alleviation of plants by Azospirillum.
Fil: Cohen, Ana Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Travaglia, Claudia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Bottini, Ambrosio Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Piccoli, Patricia Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Materia
abscisic acid
Azospirillum lipoferum
drought
gibberellin
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/106856
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/106856
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maizeCohen, Ana CarmenTravaglia, Claudia NoemiBottini, Ambrosio RubénPiccoli, Patricia Noemíabscisic acidAzospirillum lipoferumdroughtgibberellinhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Azospirillum spp. are plant growth promoting bacteria (PGPB) that enhance growth by several mechanisms, including the production of phytohormones such as abscisic acid (ABA), indole-3-acetic acid (IAA), and gibberellins (GAs). Their presence may also alleviate plant water stress. In the present paper, the effects of Azospirillum lipoferum in maize (Zea mays L.) plants treated with inhibitors of ABA and GA synthesis, fluridone (F) and prohexadione-Ca (P), respectively, and either submitted to drought stress or provided sufficient water, were analysed. Fluridone diminished the growth of plants that had been well watered, in a manner similar to drought, but inoculation with Azospirillum completely reversed this effect. The relative water content of the F-treated and drought-stressed plants was significantly lower (even though drought-stressed plants had been allowed to recover for one week), and this effect was completely neutralized by Azospirillum. These results were correlated with ABA levels assessed by GC-EIMS. Growth was diminished in droughtsubmitted plants treated with P, alone or combined with F, even though ABA levels were enhanced, suggesting that Gas produced by the bacterium are also important in stress alleviation. The results suggest that both ABA and GAs contribute to water-stress alleviation of plants by Azospirillum.Fil: Cohen, Ana Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; ArgentinaFil: Travaglia, Claudia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; ArgentinaFil: Bottini, Ambrosio Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; ArgentinaFil: Piccoli, Patricia Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; ArgentinaNational Research Council Canada-NRC Research Press2009-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/106856Cohen, Ana Carmen; Travaglia, Claudia Noemi; Bottini, Ambrosio Rubén; Piccoli, Patricia Noemí; Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize; National Research Council Canada-NRC Research Press; Botany; 87; 5; 5-2009; 455-4621916-2790CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1139/B09-023info:eu-repo/semantics/altIdentifier/url/https://www.nrcresearchpress.com/doi/10.1139/B09-023#.Xt5dbDpKhqMinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:57Zoai:ri.conicet.gov.ar:11336/106856instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:55:58.151CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
title Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
spellingShingle Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
Cohen, Ana Carmen
abscisic acid
Azospirillum lipoferum
drought
gibberellin
title_short Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
title_full Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
title_fullStr Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
title_full_unstemmed Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
title_sort Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize
dc.creator.none.fl_str_mv Cohen, Ana Carmen
Travaglia, Claudia Noemi
Bottini, Ambrosio Rubén
Piccoli, Patricia Noemí
author Cohen, Ana Carmen
author_facet Cohen, Ana Carmen
Travaglia, Claudia Noemi
Bottini, Ambrosio Rubén
Piccoli, Patricia Noemí
author_role author
author2 Travaglia, Claudia Noemi
Bottini, Ambrosio Rubén
Piccoli, Patricia Noemí
author2_role author
author
author
dc.subject.none.fl_str_mv abscisic acid
Azospirillum lipoferum
drought
gibberellin
topic abscisic acid
Azospirillum lipoferum
drought
gibberellin
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Azospirillum spp. are plant growth promoting bacteria (PGPB) that enhance growth by several mechanisms, including the production of phytohormones such as abscisic acid (ABA), indole-3-acetic acid (IAA), and gibberellins (GAs). Their presence may also alleviate plant water stress. In the present paper, the effects of Azospirillum lipoferum in maize (Zea mays L.) plants treated with inhibitors of ABA and GA synthesis, fluridone (F) and prohexadione-Ca (P), respectively, and either submitted to drought stress or provided sufficient water, were analysed. Fluridone diminished the growth of plants that had been well watered, in a manner similar to drought, but inoculation with Azospirillum completely reversed this effect. The relative water content of the F-treated and drought-stressed plants was significantly lower (even though drought-stressed plants had been allowed to recover for one week), and this effect was completely neutralized by Azospirillum. These results were correlated with ABA levels assessed by GC-EIMS. Growth was diminished in droughtsubmitted plants treated with P, alone or combined with F, even though ABA levels were enhanced, suggesting that Gas produced by the bacterium are also important in stress alleviation. The results suggest that both ABA and GAs contribute to water-stress alleviation of plants by Azospirillum.
Fil: Cohen, Ana Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Travaglia, Claudia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Bottini, Ambrosio Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Piccoli, Patricia Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
description Azospirillum spp. are plant growth promoting bacteria (PGPB) that enhance growth by several mechanisms, including the production of phytohormones such as abscisic acid (ABA), indole-3-acetic acid (IAA), and gibberellins (GAs). Their presence may also alleviate plant water stress. In the present paper, the effects of Azospirillum lipoferum in maize (Zea mays L.) plants treated with inhibitors of ABA and GA synthesis, fluridone (F) and prohexadione-Ca (P), respectively, and either submitted to drought stress or provided sufficient water, were analysed. Fluridone diminished the growth of plants that had been well watered, in a manner similar to drought, but inoculation with Azospirillum completely reversed this effect. The relative water content of the F-treated and drought-stressed plants was significantly lower (even though drought-stressed plants had been allowed to recover for one week), and this effect was completely neutralized by Azospirillum. These results were correlated with ABA levels assessed by GC-EIMS. Growth was diminished in droughtsubmitted plants treated with P, alone or combined with F, even though ABA levels were enhanced, suggesting that Gas produced by the bacterium are also important in stress alleviation. The results suggest that both ABA and GAs contribute to water-stress alleviation of plants by Azospirillum.
publishDate 2009
dc.date.none.fl_str_mv 2009-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/106856
Cohen, Ana Carmen; Travaglia, Claudia Noemi; Bottini, Ambrosio Rubén; Piccoli, Patricia Noemí; Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize; National Research Council Canada-NRC Research Press; Botany; 87; 5; 5-2009; 455-462
1916-2790
CONICET Digital
CONICET
url http://hdl.handle.net/11336/106856
identifier_str_mv Cohen, Ana Carmen; Travaglia, Claudia Noemi; Bottini, Ambrosio Rubén; Piccoli, Patricia Noemí; Participation of abscisic acid and gibberellins produced by endophytic Azospirillum in the alleviation of drought effects in maize; National Research Council Canada-NRC Research Press; Botany; 87; 5; 5-2009; 455-462
1916-2790
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1139/B09-023
info:eu-repo/semantics/altIdentifier/url/https://www.nrcresearchpress.com/doi/10.1139/B09-023#.Xt5dbDpKhqM
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv National Research Council Canada-NRC Research Press
publisher.none.fl_str_mv National Research Council Canada-NRC Research Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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