New Insights into the Phosphorus Acquisition Capacity of Chilean Lowland Quinoa Roots Grown under Low Phosphorus Availability
| Primer Autor |
de Souza Campos, Pedro M.
|
| Co-autores |
Meier, Sebastian
Morales, Arturo
Lavanderos, Laura
Nahuelcura, Javiera
Ruiz, Antonieta
Lopez-Garcia, Alvaro
Seguel, Alex
|
| Título |
New Insights into the Phosphorus Acquisition Capacity of Chilean Lowland Quinoa Roots Grown under Low Phosphorus Availability
|
| Editorial |
MDPI
|
| Revista |
PLANTS-BASEL
|
| Resumen |
Reducing phosphate fertilizer inputs while increasing food nutritional quality has been posited as a major challenge to decrease human undernourishment and ensure food security. In this context, quinoa has emerged as a promising crop due to its ability to tolerate different stress conditions and grow in marginal soils with low nutrient content, in addition to the exceptional nutritional quality of its grains. However, there is scarce information about the phosphorus acquisition capacity of quinoa roots. This work aimed to provide new insights into P acquisition and functional root traits, such as root biomass, rhizosphere pH, carboxylate exudation, and acid phosphatase activity of thirty quinoa genotypes grown under P limiting conditions (7 mg P kg(-1)). Significant genotypic variation was observed among genotypes, with average P accumulation ranging from 1.2 to 11.8 mg. The shoot biomass production varied more than 14 times among genotypes and was correlated with the P accumulation on shoots (r = 0.91). Despite showing high variability in root traits, only root biomass production highly correlated with P acquisition (r = 0.77), suggesting that root growth/morphology rather than the measured biochemical activity possesses a critical role in the P nutrition of quinoa.
|
| Fecha Publicación |
2022
|
| Tipo de Recurso |
artículo original
|
| Description |
This research was funded by Agencia Nacional de Investigacion y Desarrollo (ANID) through FONDECYT de Postdoctorado number 3210517, FONDECYT Regular number 1211387 and 1190585, and by Subsecretaria de Agricultura, Gobierno de Chile, Programa de Recursos Geneticos number 501453-70. A.L.-G. was supported by Universidad de Jaen through the Accion 9 research plan.
|
| doi |
10.3390/plants11223043
|
| Formato Recurso |
PDF
|
| Palabras Claves |
Chenopodium quinoa
phosphorus nutrition
root growth
root exudates
volcanic soil
RHIZOSPHERE
PHOSPHATE
CARBON
IRON
PH
|
| Ubicación del archivo | |
| Categoría OCDE |
Suelos Volcánicos
|
| Materias |
Chenopodium quinoa
nutrición con fósforo
crecimiento de raíces
exudados de raíces
suelo volcánico
RHIZOSFERA
FOSFATO
CARBONO
HIERRO
PH
|
| Versión del recurso (Recomendado-único) |
Versión publicada
|
| License |
CC BY 4.0
|
| Identificador del recurso (Mandatado-único) |
artículo original
|
| Referencia del Financiador (Mandatado si es aplicable-repetible) |
ANID-FONDECYT 3210517
ANID-FONDECYT 1211387
ANID-FONDECYT 1190585
Subsecretaria de Agricultura, Gobierno de Chile 501453-70
ANID FONDECYT 3210517
ANID FONDECYT 1211387
ANID FONDECYT 1190585
|
| Derechos de acceso |
acceso abierto
|
| Access Rights |
acceso abierto
|
| Id de Web of Science |
WOS:000887599800001
|
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