Repositorio UFRO · Omeka S

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	http://dx.doi.org/10.3390/plants11223043
Categoría OCDE	Suelos Volcánicos
Materias	Chenopodium quinoa nutrición con fósforo crecimiento de raíces exudados de raíces suelo volcánico RHIZOSFERA FOSFATO CARBONO HIERRO PH
Disciplinas de la OCDE	Agricultura Agronomía Botánica
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