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Open AccessArticle

Chitosan-PVA and Copper Nanoparticles Improve Growth and Overexpress the SOD and JA Genes in Tomato Plants under Salt Stress

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Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Mexico
2
Departamento de Botánica, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Mexico
3
Centro de Investigación en Química Aplicada, Saltillo 25294, Mexico
4
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Saltillo, 25315, Mexico
5
CONACyT-Universidad Autónoma Agraria Antonio Narro, Departamento de Horticultura, Saltillo 25315, Mexico
*
Author to whom correspondence should be addressed.
Agronomy 2018, 8(9), 175; https://doi.org/10.3390/agronomy8090175
Received: 3 August 2018 / Revised: 22 August 2018 / Accepted: 6 September 2018 / Published: 8 September 2018
Saline stress severely affects the growth and productivity of plants. The activation of hormonal signaling cascades and reactive oxygen species (ROS) in response to salt stress are important for cellular detoxification. Jasmonic acid (JA) and the enzyme SOD (superoxide dismutase), are well recognized markers of salt stress in plants. In this study, the application of chitosan-polyvinyl alcohol hydrogels (Cs-PVA) and copper nanoparticles (Cu NPs) on the growth and expression of defense genes in tomato plants under salt stress was evaluated. Our results demonstrate that Cs-PVA and Cs-PVA + Cu NPs enhance plant growth and also promote the expression of JA and SOD genes in tomato (Solanum lycopersicum L.), under salt stress. We propose that Cs-PVA and Cs-PVA + Cu NPs mitigate saline stress through the regulation of oxidative and ionic stress. View Full-Text
Keywords: gene expression; crop growth; oxidative stress; ionic stress; SOD gene; JA gene gene expression; crop growth; oxidative stress; ionic stress; SOD gene; JA gene
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Hernández-Hernández, H.; Juárez-Maldonado, A.; Benavides-Mendoza, A.; Ortega-Ortiz, H.; Cadenas-Pliego, G.; Sánchez-Aspeytia, D.; González-Morales, S. Chitosan-PVA and Copper Nanoparticles Improve Growth and Overexpress the SOD and JA Genes in Tomato Plants under Salt Stress. Agronomy 2018, 8, 175.

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