Repositorio UFRO · Omeka S

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