Enhancement to Salt Stress Tolerance in Strawberry Plants by Iodine Products Application

Iodine is a non-essential element for land plants, but is considered as a beneficial element, related to antioxidant capacity, environmental adaptations and improvement of plant growth. Salinity is one of the more recurrent abiotic stresses worldwide, seriously affecting vegetal production. The aim...

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Bibliographic Details
Published in:Agronomy (Basel) 2021-03, Vol.11 (3), p.602
Main Authors: Medrano Macías, Julia, López Caltzontzit, María Guadalupe, Rivas Martínez, Erika Nohemi, Narváez Ortiz, Willian Alfredo, Benavides Mendoza, Adalberto, Martínez Lagunes, Paulino
Format: Article
Language:English
Subjects:
Abiotic stress
Accumulation
Acids
Adaptation
Antioxidants
Ascorbic acid
Calcium
Catalase
Chlorophyll
Dietary minerals
Fruits
Glutathione
Iodine
L-Ascorbate peroxidase
Leaves
Loam soils
Metabolism
Minerals
nutraceuticals
Oxidation
Peroxidase
Phenolic compounds
Phenols
Plant growth
Proteins
redox metabolism
Salinity
Salinity tolerance
Salt
Salts
Strawberries
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Summary:Iodine is a non-essential element for land plants, but is considered as a beneficial element, related to antioxidant capacity, environmental adaptations and improvement of plant growth. Salinity is one of the more recurrent abiotic stresses worldwide, seriously affecting vegetal production. The aim of this work was to evaluate iodine application (Q products® and KIO3, Quimcasa de México, Naucalpan, Mexico) in strawberry plants under normal and salt stress conditions. Growth, antioxidant content, essential minerals, iodine accumulation and fruit quality were evaluated. The results showed that, under stress conditions, the application of Q products increased ascorbate peroxidase (APX) and catalase (CAT) activity as well as glutathione (GSH) content and yield in fruit, without avoiding biomass loss; with the application of KIO3 an increase in GSH and APX activity as well as P and K concentrations were obtained. In leaves an increase in P, Ca, Mn and iodine accumulation was evidenced with the application of Q products, and an increased concentration of ascorbic acid and iodine with KIO3 treatments. Under normal conditions in fruits, the application of Q products increased phenolic compounds synthesis; additionally, an increase in Ca and Mn concentrations was shown. KIO3 application increased the firmness and Mn. In leaves, the application of Q products increased chlorophyll a, b and calcium. In conclusion, the application of iodine improves the quality value of strawberries under normal conditions and provides an enhancement of salt stress tolerance.
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy11030602