Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>Arabidopsis thaliana</i>

Ascorbic acid (AA) is a major redox buffer in plant cells. The role of ethylene in the redox signaling pathways that influence photosynthesis and growth was explored in two independent AA deficient Arabidopsis thaliana mutants (vtc2-1 and vtc2-4). Both mutants, which are defective in the AA biosynth...

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Detalles Bibliográficos
Autores principales: Caviglia, Marcos, Mazorra Morales, L. M., Concellón, Analía, Gergoff Grozeff, Gustavo Esteban, Wilson, Michael, Foyer, Christine H., Bartoli, Carlos Guillermo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Biología
Ciencias Naturales
ascorbic acid
ethylene
leaf conductance
photosynthesis
plants
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125003
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125003
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Ciencias Naturales
ascorbic acid
ethylene
leaf conductance
photosynthesis
plants
spellingShingle Biología
Ciencias Naturales
ascorbic acid
ethylene
leaf conductance
photosynthesis
plants
Caviglia, Marcos
Mazorra Morales, L. M.
Concellón, Analía
Gergoff Grozeff, Gustavo Esteban
Wilson, Michael
Foyer, Christine H.
Bartoli, Carlos Guillermo
Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>Arabidopsis thaliana</i>
topic_facet Biología
Ciencias Naturales
ascorbic acid
ethylene
leaf conductance
photosynthesis
plants
description Ascorbic acid (AA) is a major redox buffer in plant cells. The role of ethylene in the redox signaling pathways that influence photosynthesis and growth was explored in two independent AA deficient Arabidopsis thaliana mutants (vtc2-1 and vtc2-4). Both mutants, which are defective in the AA biosynthesis gene GDP-L-galactose phosphorylase, produce higher amounts of ethylene than wt plants. In contrast to the wt, the inhibition of ethylene signaling increased leaf conductance, photosynthesis and dry weight in both vtc2 mutant lines. The AA-deficient mutants showed altered expression of genes encoding proteins involved in the synthesis/responses to phytohormones that control growth, particularly auxin, cytokinins, abscisic acid, brassinosterioids, ethylene and salicylic acid. These results demonstrate that AA deficiency modifies hormone signaling in plants, redox-ethylene interactions providing a regulatory node controlling shoot biomass accumulation.
format Articulo
Articulo
author Caviglia, Marcos
Mazorra Morales, L. M.
Concellón, Analía
Gergoff Grozeff, Gustavo Esteban
Wilson, Michael
Foyer, Christine H.
Bartoli, Carlos Guillermo
author_facet Caviglia, Marcos
Mazorra Morales, L. M.
Concellón, Analía
Gergoff Grozeff, Gustavo Esteban
Wilson, Michael
Foyer, Christine H.
Bartoli, Carlos Guillermo
author_sort Caviglia, Marcos
title Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>Arabidopsis thaliana</i>
title_short Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>Arabidopsis thaliana</i>
title_full Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>Arabidopsis thaliana</i>
title_fullStr Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>Arabidopsis thaliana</i>
title_full_unstemmed Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>Arabidopsis thaliana</i>
title_sort ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in <i>arabidopsis thaliana</i>
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/125003
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bdutipo_str Repositorios
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