Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicu...

Autores
Mignolli, Francesco; Mariotti, Lorenzo; Picciarelli, Piero; Vidoz, María Laura
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Mignolli, Francesco. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
Fil: Mignolli, Francesco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Fil: Mariotti, Lorenzo. Universidad de Pisa. Departamento de Biología; Italia.
Fil: Picciarelli, Piero. Universidad de Pisa. Departamento de Agricultura; Italia.
Fil: Vidoz, María Laura. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
Fil: Vidoz, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
The aerial roots (aer) mutant of tomato is characterized by a profuse and precocious formation of adven- titious root primordia along the stem. We demonstrated that auxin is involved in the aer phenotype but ruled out higher auxin sensitivity of mutant plants. Interestingly, polar auxin transport was altered in aer, as young seedlings showed a reduced response to an auxin transport inhibitor and higher expression of auxin export carriers SlPIN1 and SlPIN3. An abrupt reduction in transcripts of auxin efflux and influx genes in older aer hypocotyls caused a marked deceleration of auxin transport in more mature tissues. Indeed, in 20 days old aer plants, the transport of labeled IAA was faster in apices than in hypocotyls, displaying an opposite trend in comparison to a wild type. In addition, auxin transport facilitators (SlPIN1, SlPIN4, SlLAX5) were more expressed in aer apices than in hypocotyls, suggesting that auxin moves faster from the upper to the lower part of the stem. Consequently, a significantly higher level of free and conjugated IAA was found at the base of aer stems with respect to their apices. This auxin accumulation is likely the cause of the aer phenotype.
Fuente
Journal of Plant Physiology, 2017, vol. 213, p. 55-65.
Materia
Tomato
Aerial roots mutant
Adventitious roots
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
Institución
Universidad Nacional del Nordeste
OAI Identificador
oai:repositorio.unne.edu.ar:123456789/28508
Acceder
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oai_identifier_str oai:repositorio.unne.edu.ar:123456789/28508
network_acronym_str RIUNNE
repository_id_str 4871
network_name_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
spelling Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)Mignolli, FrancescoMariotti, LorenzoPicciarelli, PieroVidoz, María LauraTomatoAerial roots mutantAdventitious rootsFil: Mignolli, Francesco. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.Fil: Mignolli, Francesco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.Fil: Mariotti, Lorenzo. Universidad de Pisa. Departamento de Biología; Italia.Fil: Picciarelli, Piero. Universidad de Pisa. Departamento de Agricultura; Italia.Fil: Vidoz, María Laura. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.Fil: Vidoz, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.The aerial roots (aer) mutant of tomato is characterized by a profuse and precocious formation of adven- titious root primordia along the stem. We demonstrated that auxin is involved in the aer phenotype but ruled out higher auxin sensitivity of mutant plants. Interestingly, polar auxin transport was altered in aer, as young seedlings showed a reduced response to an auxin transport inhibitor and higher expression of auxin export carriers SlPIN1 and SlPIN3. An abrupt reduction in transcripts of auxin efflux and influx genes in older aer hypocotyls caused a marked deceleration of auxin transport in more mature tissues. Indeed, in 20 days old aer plants, the transport of labeled IAA was faster in apices than in hypocotyls, displaying an opposite trend in comparison to a wild type. In addition, auxin transport facilitators (SlPIN1, SlPIN4, SlLAX5) were more expressed in aer apices than in hypocotyls, suggesting that auxin moves faster from the upper to the lower part of the stem. Consequently, a significantly higher level of free and conjugated IAA was found at the base of aer stems with respect to their apices. This auxin accumulation is likely the cause of the aer phenotype.Elsevier GmbH2017-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfMignolli, Francesco, et al., 2017. Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.). Journal of Plant Physiology. Múnich: Elsevier GmbH, vol. 213, p. 55-65. E-ISSN 0176-1617.http://repositorio.unne.edu.ar/handle/123456789/28508https://www.sciencedirect.com/science/article/abs/pii/S0176161717300603Journal of Plant Physiology, 2017, vol. 213, p. 55-65.reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)instname:Universidad Nacional del Nordesteenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Atribución-NoComercial-SinDerivadas 2.5 Argentina2025-09-04T11:14:36Zoai:repositorio.unne.edu.ar:123456789/28508instacron:UNNEInstitucionalhttp://repositorio.unne.edu.ar/Universidad públicaNo correspondehttp://repositorio.unne.edu.ar/oaiososa@bib.unne.edu.ar;sergio.alegria@unne.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:48712025-09-04 11:14:36.287Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordestefalse
dc.title.none.fl_str_mv Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
title Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
spellingShingle Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
Mignolli, Francesco
Tomato
Aerial roots mutant
Adventitious roots
title_short Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
title_full Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
title_fullStr Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
title_full_unstemmed Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
title_sort Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.)
dc.creator.none.fl_str_mv Mignolli, Francesco
Mariotti, Lorenzo
Picciarelli, Piero
Vidoz, María Laura
author Mignolli, Francesco
author_facet Mignolli, Francesco
Mariotti, Lorenzo
Picciarelli, Piero
Vidoz, María Laura
author_role author
author2 Mariotti, Lorenzo
Picciarelli, Piero
Vidoz, María Laura
author2_role author
author
author
dc.subject.none.fl_str_mv Tomato
Aerial roots mutant
Adventitious roots
topic Tomato
Aerial roots mutant
Adventitious roots
dc.description.none.fl_txt_mv Fil: Mignolli, Francesco. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
Fil: Mignolli, Francesco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Fil: Mariotti, Lorenzo. Universidad de Pisa. Departamento de Biología; Italia.
Fil: Picciarelli, Piero. Universidad de Pisa. Departamento de Agricultura; Italia.
Fil: Vidoz, María Laura. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
Fil: Vidoz, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
The aerial roots (aer) mutant of tomato is characterized by a profuse and precocious formation of adven- titious root primordia along the stem. We demonstrated that auxin is involved in the aer phenotype but ruled out higher auxin sensitivity of mutant plants. Interestingly, polar auxin transport was altered in aer, as young seedlings showed a reduced response to an auxin transport inhibitor and higher expression of auxin export carriers SlPIN1 and SlPIN3. An abrupt reduction in transcripts of auxin efflux and influx genes in older aer hypocotyls caused a marked deceleration of auxin transport in more mature tissues. Indeed, in 20 days old aer plants, the transport of labeled IAA was faster in apices than in hypocotyls, displaying an opposite trend in comparison to a wild type. In addition, auxin transport facilitators (SlPIN1, SlPIN4, SlLAX5) were more expressed in aer apices than in hypocotyls, suggesting that auxin moves faster from the upper to the lower part of the stem. Consequently, a significantly higher level of free and conjugated IAA was found at the base of aer stems with respect to their apices. This auxin accumulation is likely the cause of the aer phenotype.
description Fil: Mignolli, Francesco. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
publishDate 2017
dc.date.none.fl_str_mv 2017-06
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 Mignolli, Francesco, et al., 2017. Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.). Journal of Plant Physiology. Múnich: Elsevier GmbH, vol. 213, p. 55-65. E-ISSN 0176-1617.
http://repositorio.unne.edu.ar/handle/123456789/28508
https://www.sciencedirect.com/science/article/abs/pii/S0176161717300603
identifier_str_mv Mignolli, Francesco, et al., 2017. Differential auxin transport and accumulation in the stem base lead to profuse adventitious root primordia formation in the aerial roots (aer) mutant of tomato (Solanum lycopersicum L.). Journal of Plant Physiology. Múnich: Elsevier GmbH, vol. 213, p. 55-65. E-ISSN 0176-1617.
url http://repositorio.unne.edu.ar/handle/123456789/28508
https://www.sciencedirect.com/science/article/abs/pii/S0176161717300603
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier GmbH
publisher.none.fl_str_mv Elsevier GmbH
dc.source.none.fl_str_mv Journal of Plant Physiology, 2017, vol. 213, p. 55-65.
reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname:Universidad Nacional del Nordeste
reponame_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
collection Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname_str Universidad Nacional del Nordeste
repository.name.fl_str_mv Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordeste
repository.mail.fl_str_mv ososa@bib.unne.edu.ar;sergio.alegria@unne.edu.ar
_version_ 1842344228878811136
score 12.623145

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