Preprint Article Version 1 This version is not peer-reviewed

Effects of Grafting and Saline Stress on the Nutraceutical Content of Tomato Fruits

Version 1 : Received: 13 June 2018 / Approved: 14 June 2018 / Online: 14 June 2018 (07:44:17 CEST)

How to cite: Leon-Calvario, I.; Cabrera-De la Fuente, M.; Benavides-Mendoza, A.; Juárez-Maldonado, A.; Sandoval-Rangel, A. Effects of Grafting and Saline Stress on the Nutraceutical Content of Tomato Fruits. Preprints 2018, 2018060223 (doi: 10.20944/preprints201806.0223.v1). Leon-Calvario, I.; Cabrera-De la Fuente, M.; Benavides-Mendoza, A.; Juárez-Maldonado, A.; Sandoval-Rangel, A. Effects of Grafting and Saline Stress on the Nutraceutical Content of Tomato Fruits. Preprints 2018, 2018060223 (doi: 10.20944/preprints201806.0223.v1).

Abstract

Tomato is one of the most widely consumed vegetables in the world, such that improvements to its nutraceutical quality would have a positive effect on consumers’ health. In this study, we subjected grafted and non-grafted tomato plants to four different saline concentrations (NaCl), inducing abiotic stress in an attempt to increase antioxidant content without significantly affecting yields. Grafting affected lycopene content and ascorbate peroxidase (APx) activity. High NaCl (50, 75, and 100 mM) concentrations increased vitamin C content and both SOD and APx activity, but reduced lycopene content and fruit yields. The fruits from grafted plants subjected to 100 mM NaCl demonstrated the greatest vitamin C and total phenol content. Lycopene was greatest in treatments without salt stress, while superoxide dismutase (SOD) activity benefited most from not grafting and 100 mM NaCl. Grafted plants, in the absence of salt (0 mM treatment), had the highest yields.

Subject Areas

antioxidants; antioxidant enzymes; Solanum lycopersicum

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