Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress

Primer Autor
Bravo, Leon A.
Co-autores
Gonzalez-Villagra, Jorge
Reyes-Diaz, Marjorie M.
Tighe-Neira, Ricardo
Inostroza-Blancheteau, Claudio
Escobar, Ana Luengo
Título
Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress
Editorial
MDPI
Revista
PLANTS-BASEL
Lenguaje
en
Resumen
Salicylic acid (SA) has been shown to ameliorate drought stress. However, physiological and biochemical mechanisms involved in drought stress tolerance induced by SA in plants have not been well understood. Thus, this study aimed to study the role of SA application on enzymatic and non-enzymatic antioxidants, photosynthetic performance, and plant growth in A. chilensis plants subjected to moderate drought stress. One-year-old A. chilensis plants were subjected to 100% and 60% of field capacity. When plants reached moderate drought stress (average of stem water potential of -1.0 MPa, considered as moderate drought stress), a single SA application was performed on plants. Then, physiological and biochemical features were determined at different times during 14 days. Our study showed that SA application increased 13.5% plant growth and recovered 41.9% A(N) and 40.7% g(s) in drought-stressed plants on day 3 compared to drought-stressed plants without SA application. Interestingly, SOD and APX activities were increased 85% and 60%, respectively, in drought-stressed SA-treated plants on day 3. Likewise, SA improved 30% total phenolic content and 60% antioxidant capacity in drought-stressed A. chilensis plants. Our study provides insight into the SA mechanism to tolerate moderate drought stress in A. chilensis plants.
Tipo de Recurso
artículo original
doi
10.3390/plants11050639
Formato Recurso
PDF
Palabras Claves
superoxide dismutase activity
ascorbate peroxidase activity
CO2 assimilation
total phenolics
plant growth
ABSCISIC-ACID
STOMATAL CONDUCTANCE
HYDROGEN-PEROXIDE
RUBISCO ACTIVITY
WATER-STRESS
RESPONSES
TOLERANCE
GROWTH
LIMITATIONS
ARABIDOPSIS
Ubicación del archivo
http://dx.doi.org/10.3390/plants11050639
Categoría OCDE
Ciencias de las plantas
Materias
actividad superóxido dismutasa
actividad ascorbato peroxidasa
asimilación de CO2
fenólicos totales
crecimiento de plantas
ÁCIDO ABSÍCICO
CONDUCTANCIA ESTÓMICA
PERÓXIDO DE HIDRÓGENO
ACTIVIDAD RUBISCO
ESTRÉS HÍDRICO
RESPUESTAS
TOLERANCIA
CRECIMIENTO
LIMITACIONES
ARABIDOPSIS
Disciplinas de la OCDE
Agricultura
Botánica
Otras Ciencias Agrícolas
Título de la cita (Recomendado-único)
Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress
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
Id de Web of Science
WOS:000769107300001
Colecciones
Colección Publicaciones Científicas
Revisa las metricas alternativas de Almetrics
Revisa las citaciones de Dimensions