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Agronomy 2018, 8(12), 275; https://doi.org/10.3390/agronomy8120275

Lettuce Biofortification with Selenium in Chitosan-Polyacrylic Acid Complexes

1
Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila 25315, Mexico
2
Departamento de Ciencia y Tecnología de los Alimentos, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila 25315, Mexico
3
Centro de Investigación en Química Aplicada, Saltillo 25294, Mexico
4
CONACYT-Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Mexico
*
Author to whom correspondence should be addressed.
Received: 24 October 2018 / Revised: 14 November 2018 / Accepted: 21 November 2018 / Published: 23 November 2018
(This article belongs to the Special Issue Nutrition Management of Hydroponic Vegetable Crops)
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Abstract

Selenium (Se) is an essential element of the human diet. Therefore, it is necessary to implement Se in selenium-deficient soils and in the nutrient solution of soilless system culture. Although it is not considered as an essential element for plants, Se provides benefits at the level of redox metabolism, increasing the resistance of plants to various stress factors. The increase of the availability of Se, with the use of biopolymer complexes, was sought in Lactuca sativa var. Great Lakes, grown in substrate pots treated with SeO2 (5 mg Se/plant), chitosan-polyacrylic acid complex + Se (Cs-PAA + Se) (5 mg Se/plant), and chitosan-polyacrylic acid complex (Cs-PAA). The redox metabolism was modified by increasing the enzymatic activity of catalase and glutathione peroxidase. The use of Cs-PAA + Se biopolymer complexes increased Se up to 24 mg/Kg dry weight (DW) in plant tissues. View Full-Text
Keywords: biofortification; antioxidants; soilless culture; nutraceutical quality; enzymatic activity; plant resistance biofortification; antioxidants; soilless culture; nutraceutical quality; enzymatic activity; plant resistance
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Leija-Martínez, P.; Benavides-Mendoza, A.; Cabrera-De La Fuente, M.; Robledo-Olivo, A.; Ortega-Ortíz, H.; Sandoval-Rangel, A.; González-Morales, S. Lettuce Biofortification with Selenium in Chitosan-Polyacrylic Acid Complexes. Agronomy 2018, 8, 275.

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