Exogenous Carbon Compounds Modulate Tomato Root Development
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Otros documentos de la autoría: González-Hernández, Ana I.; Scalschi, Loredana; García Agustín, Pilar; Camañes, Gemma
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comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
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Título
Exogenous Carbon Compounds Modulate Tomato Root DevelopmentFecha de publicación
2020Editor
MDPIISSN
2223-7747Cita bibliográfica
González-Hernández, A.I.; Scalschi, L.; García-Agustín, P.; Camañes, G. Exogenous Carbon Compounds Modulate Tomato Root Development. Plants 2020, 9, 837.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.mdpi.com/2223-7747/9/7/837Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
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 [-]
Publicado en
Plants 2020, 9, 837Proyecto de investigación
AGL2013-49023-C03-02-R and AGL2017-85987-C3-1-R, UJI-A2016-09, UJI-PREDOC/2016/27Derechos de acceso
info:eu-repo/semantics/openAccess
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