Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development
- Autores
- Flores, Teresita; Todd, Christopher; Tovar Mendez, Alejandro; Dhanoa, Preetinder; Correa Aragunde, Maria Natalia; Hoyos, Mary Elizabeth; Brownfield, Disa M.; Mullen, Robert T.; Lamattina, Lorenzo; Polacco, Joe
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Mutation of either arginase structural gene (ARGAH1 or ARGAH2 encoding arginine [Arg] amidohydrolase-1 and -2, respectively) resulted in increased formation of lateral and adventitious roots in Arabidopsis (Arabidopsis thaliana) seedlings and increased nitric oxide (NO) accumulation and efflux, detected by the fluorogenic traps 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate and diamino-rhodamine-4M, respectively. Upon seedling exposure to the synthetic auxin naphthaleneacetic acid, NO accumulation was differentially enhanced in argah1-1 and argah2-1 compared with the wild type. In all genotypes, much 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate fluorescence originated from mitochondria. The arginases are both localized to the mitochondrial matrix and closely related. However, their expression levels and patterns differ: ARGAH1 encoded the minor activity, and ARGAH1-driven β-glucuronidase (GUS) was expressed throughout the seedling; the ARGAH2::GUS expression pattern was more localized. Naphthaleneacetic acid increased seedling lateral root numbers (total lateral roots per primary root) in the mutants to twice the number in the wild type, consistent with increased internal NO leading to enhanced auxin signaling in roots. In agreement, argah1-1 and argah2-1 showed increased expression of the auxin-responsive reporter DR5::GUS in root tips, emerging lateral roots, and hypocotyls. We propose that Arg, or an Arg derivative, is a potential NO source and that reduced arginase activity in the mutants results in greater conversion of Arg to NO, thereby potentiating auxin action in roots. This model is supported by supplemental Arg induction of adventitious roots and increased NO accumulation in argah1-1 and argah2-1 versus the wild type.
Fil: Flores, Teresita. University of Missouri; Estados Unidos
Fil: Todd, Christopher. University of Saskatchewan; Canadá. University of Missouri; Estados Unidos
Fil: Tovar Mendez, Alejandro. University of Missouri; Estados Unidos
Fil: Dhanoa, Preetinder. University of Guelph; Canadá
Fil: Correa Aragunde, Maria Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina
Fil: Hoyos, Mary Elizabeth. University of Missouri; Estados Unidos
Fil: Brownfield, Disa M.. University of Alberta; Canadá
Fil: Mullen, Robert T.. University of Guelph; Canadá
Fil: Lamattina, Lorenzo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina
Fil: Polacco, Joe. Universidade Federal do Rio Grande do Sul; Brasil - Materia
-
arginase
nitric oxide
roots
nitric oxide synthase - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/133922
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Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root developmentFlores, TeresitaTodd, ChristopherTovar Mendez, AlejandroDhanoa, PreetinderCorrea Aragunde, Maria NataliaHoyos, Mary ElizabethBrownfield, Disa M.Mullen, Robert T.Lamattina, LorenzoPolacco, Joearginasenitric oxiderootsnitric oxide synthasehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Mutation of either arginase structural gene (ARGAH1 or ARGAH2 encoding arginine [Arg] amidohydrolase-1 and -2, respectively) resulted in increased formation of lateral and adventitious roots in Arabidopsis (Arabidopsis thaliana) seedlings and increased nitric oxide (NO) accumulation and efflux, detected by the fluorogenic traps 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate and diamino-rhodamine-4M, respectively. Upon seedling exposure to the synthetic auxin naphthaleneacetic acid, NO accumulation was differentially enhanced in argah1-1 and argah2-1 compared with the wild type. In all genotypes, much 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate fluorescence originated from mitochondria. The arginases are both localized to the mitochondrial matrix and closely related. However, their expression levels and patterns differ: ARGAH1 encoded the minor activity, and ARGAH1-driven β-glucuronidase (GUS) was expressed throughout the seedling; the ARGAH2::GUS expression pattern was more localized. Naphthaleneacetic acid increased seedling lateral root numbers (total lateral roots per primary root) in the mutants to twice the number in the wild type, consistent with increased internal NO leading to enhanced auxin signaling in roots. In agreement, argah1-1 and argah2-1 showed increased expression of the auxin-responsive reporter DR5::GUS in root tips, emerging lateral roots, and hypocotyls. We propose that Arg, or an Arg derivative, is a potential NO source and that reduced arginase activity in the mutants results in greater conversion of Arg to NO, thereby potentiating auxin action in roots. This model is supported by supplemental Arg induction of adventitious roots and increased NO accumulation in argah1-1 and argah2-1 versus the wild type.Fil: Flores, Teresita. University of Missouri; Estados UnidosFil: Todd, Christopher. University of Saskatchewan; Canadá. University of Missouri; Estados UnidosFil: Tovar Mendez, Alejandro. University of Missouri; Estados UnidosFil: Dhanoa, Preetinder. University of Guelph; CanadáFil: Correa Aragunde, Maria Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; ArgentinaFil: Hoyos, Mary Elizabeth. University of Missouri; Estados UnidosFil: Brownfield, Disa M.. University of Alberta; CanadáFil: Mullen, Robert T.. University of Guelph; CanadáFil: Lamattina, Lorenzo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; ArgentinaFil: Polacco, Joe. Universidade Federal do Rio Grande do Sul; BrasilAmerican Society of Plant Biologist2008-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/133922Flores, Teresita; Todd, Christopher; Tovar Mendez, Alejandro; Dhanoa, Preetinder; Correa Aragunde, Maria Natalia; et al.; Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development; American Society of Plant Biologist; Plant Physiology; 147; 4; 8-2008; 1936-19460032-0889CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1104/pp.108.121459info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:22Zoai:ri.conicet.gov.ar:11336/133922instacron: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 09:49:22.928CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development |
title |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development |
spellingShingle |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development Flores, Teresita arginase nitric oxide roots nitric oxide synthase |
title_short |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development |
title_full |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development |
title_fullStr |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development |
title_full_unstemmed |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development |
title_sort |
Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development |
dc.creator.none.fl_str_mv |
Flores, Teresita Todd, Christopher Tovar Mendez, Alejandro Dhanoa, Preetinder Correa Aragunde, Maria Natalia Hoyos, Mary Elizabeth Brownfield, Disa M. Mullen, Robert T. Lamattina, Lorenzo Polacco, Joe |
author |
Flores, Teresita |
author_facet |
Flores, Teresita Todd, Christopher Tovar Mendez, Alejandro Dhanoa, Preetinder Correa Aragunde, Maria Natalia Hoyos, Mary Elizabeth Brownfield, Disa M. Mullen, Robert T. Lamattina, Lorenzo Polacco, Joe |
author_role |
author |
author2 |
Todd, Christopher Tovar Mendez, Alejandro Dhanoa, Preetinder Correa Aragunde, Maria Natalia Hoyos, Mary Elizabeth Brownfield, Disa M. Mullen, Robert T. Lamattina, Lorenzo Polacco, Joe |
author2_role |
author author author author author author author author author |
dc.subject.none.fl_str_mv |
arginase nitric oxide roots nitric oxide synthase |
topic |
arginase nitric oxide roots nitric oxide synthase |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Mutation of either arginase structural gene (ARGAH1 or ARGAH2 encoding arginine [Arg] amidohydrolase-1 and -2, respectively) resulted in increased formation of lateral and adventitious roots in Arabidopsis (Arabidopsis thaliana) seedlings and increased nitric oxide (NO) accumulation and efflux, detected by the fluorogenic traps 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate and diamino-rhodamine-4M, respectively. Upon seedling exposure to the synthetic auxin naphthaleneacetic acid, NO accumulation was differentially enhanced in argah1-1 and argah2-1 compared with the wild type. In all genotypes, much 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate fluorescence originated from mitochondria. The arginases are both localized to the mitochondrial matrix and closely related. However, their expression levels and patterns differ: ARGAH1 encoded the minor activity, and ARGAH1-driven β-glucuronidase (GUS) was expressed throughout the seedling; the ARGAH2::GUS expression pattern was more localized. Naphthaleneacetic acid increased seedling lateral root numbers (total lateral roots per primary root) in the mutants to twice the number in the wild type, consistent with increased internal NO leading to enhanced auxin signaling in roots. In agreement, argah1-1 and argah2-1 showed increased expression of the auxin-responsive reporter DR5::GUS in root tips, emerging lateral roots, and hypocotyls. We propose that Arg, or an Arg derivative, is a potential NO source and that reduced arginase activity in the mutants results in greater conversion of Arg to NO, thereby potentiating auxin action in roots. This model is supported by supplemental Arg induction of adventitious roots and increased NO accumulation in argah1-1 and argah2-1 versus the wild type. Fil: Flores, Teresita. University of Missouri; Estados Unidos Fil: Todd, Christopher. University of Saskatchewan; Canadá. University of Missouri; Estados Unidos Fil: Tovar Mendez, Alejandro. University of Missouri; Estados Unidos Fil: Dhanoa, Preetinder. University of Guelph; Canadá Fil: Correa Aragunde, Maria Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina Fil: Hoyos, Mary Elizabeth. University of Missouri; Estados Unidos Fil: Brownfield, Disa M.. University of Alberta; Canadá Fil: Mullen, Robert T.. University of Guelph; Canadá Fil: Lamattina, Lorenzo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina Fil: Polacco, Joe. Universidade Federal do Rio Grande do Sul; Brasil |
description |
Mutation of either arginase structural gene (ARGAH1 or ARGAH2 encoding arginine [Arg] amidohydrolase-1 and -2, respectively) resulted in increased formation of lateral and adventitious roots in Arabidopsis (Arabidopsis thaliana) seedlings and increased nitric oxide (NO) accumulation and efflux, detected by the fluorogenic traps 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate and diamino-rhodamine-4M, respectively. Upon seedling exposure to the synthetic auxin naphthaleneacetic acid, NO accumulation was differentially enhanced in argah1-1 and argah2-1 compared with the wild type. In all genotypes, much 3-amino,4-aminomethyl-2′,7′- difluorofluorescein diacetate fluorescence originated from mitochondria. The arginases are both localized to the mitochondrial matrix and closely related. However, their expression levels and patterns differ: ARGAH1 encoded the minor activity, and ARGAH1-driven β-glucuronidase (GUS) was expressed throughout the seedling; the ARGAH2::GUS expression pattern was more localized. Naphthaleneacetic acid increased seedling lateral root numbers (total lateral roots per primary root) in the mutants to twice the number in the wild type, consistent with increased internal NO leading to enhanced auxin signaling in roots. In agreement, argah1-1 and argah2-1 showed increased expression of the auxin-responsive reporter DR5::GUS in root tips, emerging lateral roots, and hypocotyls. We propose that Arg, or an Arg derivative, is a potential NO source and that reduced arginase activity in the mutants results in greater conversion of Arg to NO, thereby potentiating auxin action in roots. This model is supported by supplemental Arg induction of adventitious roots and increased NO accumulation in argah1-1 and argah2-1 versus the wild type. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-08 |
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/11336/133922 Flores, Teresita; Todd, Christopher; Tovar Mendez, Alejandro; Dhanoa, Preetinder; Correa Aragunde, Maria Natalia; et al.; Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development; American Society of Plant Biologist; Plant Physiology; 147; 4; 8-2008; 1936-1946 0032-0889 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/133922 |
identifier_str_mv |
Flores, Teresita; Todd, Christopher; Tovar Mendez, Alejandro; Dhanoa, Preetinder; Correa Aragunde, Maria Natalia; et al.; Arginase-negative mutants of Arabidopsis exhibit increased nitric oxide signaling in root development; American Society of Plant Biologist; Plant Physiology; 147; 4; 8-2008; 1936-1946 0032-0889 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1104/pp.108.121459 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
American Society of Plant Biologist |
publisher.none.fl_str_mv |
American Society of Plant Biologist |
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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1842268971062001664 |
score |
13.13397 |