Biochemical and Molecular Responses Underlying the Contrasting Phosphorus Use Efficiency in Ryegrass Cultivars

Primer Autor
Cartes, Paula
Co-autores
Pontigo, Sofia
Parra-Almuna, Leyla
Luengo-Escobar, Ana
Poblete-Grant, Patricia
Nunes-Nesi, Adriano
de la Luz Mora, Maria
Título
Biochemical and Molecular Responses Underlying the Contrasting Phosphorus Use Efficiency in Ryegrass Cultivars
Editorial
MDPI
Revista
PLANTS-BASEL
Lenguaje
en
Resumen
Improving plant ability to acquire and efficiently utilize phosphorus (P) is a promising approach for developing sustainable pasture production. This study aimed to identify ryegrass cultivars with contrasting P use efficiency, and to assess their associated biochemical and molecular responses. Nine ryegrass cultivars were hydroponically grown under optimal (0.1 mM) or P-deficient (0.01 mM) conditions, and P uptake, dry biomass, phosphorus acquisition efficiency (PAE) and phosphorus utilization efficiency (PUE) were evaluated. Accordingly, two cultivars with high PAE but low PUE (Ansa and Stellar), and two cultivars with low PAE and high PUE (24Seven and Extreme) were selected to analyze the activity and gene expression of acid phosphatases (APases), as well as the transcript levels of P transporters. Our results showed that ryegrass cultivars with high PAE were mainly influenced by root-related responses, including the expression of genes codifying for the P transporter LpPHT1,4, purple acid phosphatase LpPAP1 and APase activity. Moreover, the traits that contributed greatly to enhanced PUE were the expression of LpPHT1,1/4 and LpPHO1,2, and the APase activity in shoots. These outcomes could be useful to evaluate and develop cultivars with high P-use efficiency, thus contributing to improve the management of P in grassland systems.
Fecha Publicación
2023
Tipo de Recurso
artículo original
doi
10.3390/plants12061224
Formato Recurso
PDF
Palabras Claves
phosphorus acquisition efficiency
phosphorus utilization efficiency
phosphate transporters
acid phosphatases
ryegrass
Ubicación del archivo
Categoría OCDE
Ciencias de las plantas
Materias
eficiencia de adquisición de fósforo
eficiencia de utilización del fósforo
transportadores de fosfato
fosfatasas ácidas
raigrás
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
versión publicada
License
CC BY 4.0
Condición de la licencia (Recomendado-repetible)
CC BY 4.0
Derechos de acceso
acceso abierto
Access Rights
acceso abierto
Id de Web of Science
WOS:000960212900001
Tipo de ruta
verde# dorado
Categoría WOS
Ciencias de las plantas
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID-FONDECYT 3200901
ANID-FONDECYT 3210199
ANID-FONDECYT 1201257
ANID FONDECYT 3200901
ANID FONDECYT 3210199
ANID FONDECYT 1201257
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