Unknown

Dataset Information

0

Exogenous Carbon Compounds Modulate Tomato Root Development.


ABSTRACT: 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.

SUBMITTER: Gonzalez-Hernandez AI 

PROVIDER: S-EPMC7411956 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications

Exogenous Carbon Compounds Modulate Tomato Root Development.

González-Hernández Ana Isabel AI   Scalschi Loredana L   García-Agustín Pilar P   Camañes Gemma G  

Plants (Basel, Switzerland) 20200703 7


NO<sub>3</sub><sup>-</sup> 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 NO<sub>3</sub><sup>-</sup> 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 an  ...[more]

Similar Datasets

| S-EPMC2529230 | biostudies-literature
2022-03-04 | GSE159050 | GEO
| S-EPMC6953191 | biostudies-literature
| S-EPMC10510585 | biostudies-literature
| S-EPMC4623053 | biostudies-other
| S-EPMC7312093 | biostudies-literature
| S-EPMC7044399 | biostudies-literature
| S-EPMC7914860 | biostudies-literature
| S-EPMC4646861 | biostudies-literature
| S-EPMC9562649 | biostudies-literature