Salinity Eustress Increases the Biosynthesis and Accumulation of Phenolic Compounds That Improve the Functional and Antioxidant Quality of Red Lettuce

Primer Autor
Vidal, Gladys,
Co-autores
Santander, Christian
Ruiz, Antonieta
Vidal, Catalina
Cornejo, Pablo
Título
Salinity Eustress Increases the Biosynthesis and Accumulation of Phenolic Compounds That Improve the Functional and Antioxidant Quality of Red Lettuce
Editorial
MDPI
Revista
AGRONOMY-BASEL
Lenguaje
en
Resumen
The application of different techniques of positive stress (eustress), such as mild and moderate saline stress, could enhance the nutritional and functional attributes of food vegetables. The present study aimed to evaluate the positive effect of salinity as a eustressor on the functional quality of red lettuce growing under hydroponic conditions and subjected to increasing salinity. Red lettuce plants were grown for 60 days and, 45 days after sowing, were subjected to different levels of salinity (0, 50, 100, 150, and 200 mM NaCl). The phenolic compound concentration and antioxidant activity were measured at 7 and 15 days after the application of salinity treatment. Moreover, at harvest, the root and shoot biomass and efficiency of photosystem II were evaluated. Our results showed that the highest phenolic concentration and antioxidant activity were obtained through moderate salt stress (50 mM NaCl) applied for 15 days without affecting the photosynthetic activity and biomass production of lettuce plants. By contrast, when severe salt stress levels (150-200 mM NaCl) were applied, an increase in phenolic compounds was also obtained, but concomitantly with a significant reduction in antioxidant activity and biomass production. The application of moderate stress in red lettuce suggests its potential use as a tool to increase the biosynthesis and accumulation of bioactive secondary metabolites, improving the nutritional characteristics of red lettuce.
Tipo de Recurso
artículo original
Description
This research was funded by Agencia Nacional de Desarrollo (ANID), through the grants ANID/FONDECYT/3210588, ANID/FONDAP/15130015, ANID/FONDECYT 1190585, and ANID/FONDECYT/1210964, and the Chilean Ministry of Education (MINEDUC Chile) through the InES19 project, code FRO19101.
Esta investigación fue financiada por la Agencia Nacional de Desarrollo (ANID), a través de las subvenciones ANID/FONDECYT/3210588, ANID/FONDAP/15130015, ANID/FONDECYT 1190585 y ANID/FONDECYT/1210964, y el Ministerio de Educación de Chile (MINEDUC Chile). a través del proyecto InES19, código FRO19101.
doi
10.3390/agronomy12030598
Formato Recurso
PDF
Palabras Claves
bioactive compounds
Lactuca sativa
saline stress
secondary metabolism
LACTUCA-SATIVA L.
RADICAL SCAVENGING ACTIVITY
MINERAL-COMPOSITION
CHLOROPHYLL FLUORESCENCE
LEAVES
FLAVONOIDS
ARTICHOKE
PROFILES
STRESS
ACIDS
Ubicación del archivo
http://dx.doi.org/10.3390/agronomy12030598
Categoría OCDE
Agronomía
Ciencias de las plantas
Materias
compuestos bioactivos
Lactuca sativa
estrés salino
metabolismo secundario
LACTUCA-SATIVA L.
ACTIVIDAD ELIMINADORA DE RADICAL
COMPOSICIÓN-MINERAL
FLUORESCENCIA DE CLOROFILA
HOJAS
FLAVONOIDES
ALCACHOFA
PERFILES
ESTRÉS
ÁCIDOS
Título de la cita (Recomendado-único)
Salinity Eustress Increases the Biosynthesis and Accumulation of Phenolic Compounds That Improve the Functional and Antioxidant Quality of Red Lettuce
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
version 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
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID-FONDECYT 3210588
ANID-FONDAP 15130015
ANID-FONDAP 1190585
ANID-FONDECYT 1210964
MINEDUC FRO19101
ANID FONDECYT 3210588
ANID FONDAP 15130015
ANID FONDAP 1190585
ANID FONDECYT 1210964
Id de Web of Science
WOS:000775584800001
Colecciones
Colección Publicaciones Científicas
Colección ANID
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