Exogenous Carbon Compounds Modulate Tomato Root Development
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Títol
Exogenous Carbon Compounds Modulate Tomato Root DevelopmentData de publicació
2020Editor
MDPIISSN
2223-7747Cita bibliogràfica
González-Hernández, A.I.; Scalschi, L.; García-Agustín, P.; Camañes, G. Exogenous Carbon Compounds Modulate Tomato Root Development. Plants 2020, 9, 837.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.mdpi.com/2223-7747/9/7/837Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
NO3
− is not only a nutrient, but also a signaling compound that plays an important role in
several plant processes, like root development. The present study aimed to investigate the effect of
three different ... [+]
NO3
− is not only a nutrient, but also a signaling compound that plays an important role in
several plant processes, like root development. The present study aimed to investigate the effect of
three different exogenous C compounds (sucrose, glucose, 2-oxoglutarate) added to NO3
− nutrition
on C/N, auxin and antioxidant metabolisms in 10-day-old tomato seedlings. Sucrose and glucose
supplementation enhanced primary root (PR) length, lateral root number and root density, while
2-oxoglutarate negatively affected them. This phenomenon was accompanied by a slight increase in
NRT2.1 and GS1 gene expression, together with an increase in LAX2 and LAX3 and a decrease in LAX4
in the roots growing under sucrose and glucose sources. The addition of 2-oxoglutarate enhanced
the expression of NiR, GDH, PEPC1, LAX1, LAX3 and the antioxidant gene SOD Cl. Taken together,
these findings contribute to a better understanding of how these C sources can modulate N uptake
and C/N, auxin and antioxidant gene expression, which could be useful for improving nitrogen
use efficiency [-]
Publicat a
Plants 2020, 9, 837Proyecto de investigación
AGL2013-49023-C03-02-R and AGL2017-85987-C3-1-R, UJI-A2016-09, UJI-PREDOC/2016/27Drets d'accés
info:eu-repo/semantics/openAccess
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Except where otherwise noted, this item's license is described as © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
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(CC BY) license (http://creativecommons.org/licenses/by/4.0/).