Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato

The frequency of extreme events such as droughts and floods has increased as a consequence of climatechange. Many crops have not been improved to tolerate soil anoxia and, therefore, floods cause importanteconomic losses. During submergence, Solanum lycopersicum L. exhibits three distinct responses...

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Autores principales: Vidoz, María Laura, Mignolli, Francesco, Aispuru, Heber Tomás, Mroginski, Luis Amado
Formato: Artículo
Lenguaje:Inglés
Publicado: Elsevier 2020
Materias:
Tomato
Flooding
Adventitious roots
Biomass accumulation
Hypertrophy
Porosity
Aerenchyma
Epinasty
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/9169
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-9169
record_format dspace
spelling I48-R184-123456789-91692023-11-02T14:48:41Z Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato Vidoz, María Laura Mignolli, Francesco Aispuru, Heber Tomás Mroginski, Luis Amado Tomato Flooding Adventitious roots Biomass accumulation Hypertrophy Porosity Aerenchyma Epinasty The frequency of extreme events such as droughts and floods has increased as a consequence of climatechange. Many crops have not been improved to tolerate soil anoxia and, therefore, floods cause importanteconomic losses. During submergence, Solanum lycopersicum L. exhibits three distinct responses whichare adventitious root production, epinasty and aerenchyma formation. The development of a new adven-titious root system is crucial as it can replace the original roots that succumb to the hypoxic environment.Aerial roots (aer) is a tomato mutant characterized by the presence of numerous adventitious root pri-mordia along the hypocotyl and older internodes. In this work, we have analyzed the aer mutant behaviorto flooding to determine whether preformed adventitious roots represent an adaptive advantage withrespect to biomass accumulation. We have also examined other morphological and anatomical responsesof aer plants to detect differential adaptations under flooding. Aer plants form an abundant adventitiousroot system faster than Ailsa Craig cultivar, which results in flooded plants accumulating as much biomassas non-flooded aer plants. In addition, several ethylene-induced responses such as epinasty, hypertrophy,aerenchyma production, and apical hook formation are reduced in aer, suggesting a lower sensitivity ofsome tissues to ethylene. The E4 expression level, an ethylene-induced gene, confirmed this observationsince E4 transcripts are less abundant in petioles and stems of ethylene-treated aer plants, coinciding withthe tissues that present a lower degree of morphological and/or anatomical response. Evidence from theNever ripe mutant suggests a reduction in ethylene sensitivity could contribute to the attenuation offlooding effects. Therefore, our results indicate that the rapid formation of a new root system togetherwith a reduction in ethylene sensitivity is responsible of a faster adaptation to flooding stress in the aermutant. Fil: Vidoz, María L. 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. Fil: Aispuru, Heber Tomás. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. Fil: Mroginski, Luis Amado. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. Fil: Mroginski, Luis Amado. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina. 2020-06-02T22:49:59Z 2020-06-02T22:49:59Z 2016-03-20 Artículo Vidoz, María Laura, et al., 2016. Rapid formation of adventitious roots and partial ethylene sensitivity result in faster adaptation to flooding in the aerial roots (aer) mutant of tomato. Scientia Horticulturae. Ámsterdam: Elsevier, no. 201, p.130-139. ISSN 0304-4238. http://repositorio.unne.edu.ar/handle/123456789/9169 eng https://www.sciencedirect.com/science/article/abs/pii/S0304423816300334?via%3Dihub openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p.130-139 application/pdf Elsevier Scientia Horticulturae, 2016, no. 201, p 130-139.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Tomato
Flooding
Adventitious roots
Biomass accumulation
Hypertrophy
Porosity
Aerenchyma
Epinasty
spellingShingle Tomato
Flooding
Adventitious roots
Biomass accumulation
Hypertrophy
Porosity
Aerenchyma
Epinasty
Vidoz, María Laura
Mignolli, Francesco
Aispuru, Heber Tomás
Mroginski, Luis Amado
Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
topic_facet Tomato
Flooding
Adventitious roots
Biomass accumulation
Hypertrophy
Porosity
Aerenchyma
Epinasty
description The frequency of extreme events such as droughts and floods has increased as a consequence of climatechange. Many crops have not been improved to tolerate soil anoxia and, therefore, floods cause importanteconomic losses. During submergence, Solanum lycopersicum L. exhibits three distinct responses whichare adventitious root production, epinasty and aerenchyma formation. The development of a new adven-titious root system is crucial as it can replace the original roots that succumb to the hypoxic environment.Aerial roots (aer) is a tomato mutant characterized by the presence of numerous adventitious root pri-mordia along the hypocotyl and older internodes. In this work, we have analyzed the aer mutant behaviorto flooding to determine whether preformed adventitious roots represent an adaptive advantage withrespect to biomass accumulation. We have also examined other morphological and anatomical responsesof aer plants to detect differential adaptations under flooding. Aer plants form an abundant adventitiousroot system faster than Ailsa Craig cultivar, which results in flooded plants accumulating as much biomassas non-flooded aer plants. In addition, several ethylene-induced responses such as epinasty, hypertrophy,aerenchyma production, and apical hook formation are reduced in aer, suggesting a lower sensitivity ofsome tissues to ethylene. The E4 expression level, an ethylene-induced gene, confirmed this observationsince E4 transcripts are less abundant in petioles and stems of ethylene-treated aer plants, coinciding withthe tissues that present a lower degree of morphological and/or anatomical response. Evidence from theNever ripe mutant suggests a reduction in ethylene sensitivity could contribute to the attenuation offlooding effects. Therefore, our results indicate that the rapid formation of a new root system togetherwith a reduction in ethylene sensitivity is responsible of a faster adaptation to flooding stress in the aermutant.
format Artículo
author Vidoz, María Laura
Mignolli, Francesco
Aispuru, Heber Tomás
Mroginski, Luis Amado
author_facet Vidoz, María Laura
Mignolli, Francesco
Aispuru, Heber Tomás
Mroginski, Luis Amado
author_sort Vidoz, María Laura
title Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
title_short Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
title_full Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
title_fullStr Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
title_full_unstemmed Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
title_sort rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
publisher Elsevier
publishDate 2020
url http://repositorio.unne.edu.ar/handle/123456789/9169
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AT aispuruhebertomas rapidformationofadventitiousrootsandpartialethylenesensitivityresultinfasteradaptationtofloodingintheaerialrootsaermutantoftomato
AT mroginskiluisamado rapidformationofadventitiousrootsandpartialethylenesensitivityresultinfasteradaptationtofloodingintheaerialrootsaermutantoftomato
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