In this work, the effects of selenium (Se) on the nutritional quality of tomato fruit were investigated. The results showed that application of 1 mg L⁻¹ sodium selenate foliar spray increased Se content in the fruit without affecting other concentrations of other metals. Se treatment elevated the contents of soluble sugars (glucose and fructose), amino acids, and bioactive compounds, such as flavanoids, glutathione, vitamin C, and vitamin E, in pink tomato fruit. Proteomic analysis using isobaric tags for relative and absolute quantification was performed on tomato fruit at the commercial harvest stage. When comparing Se-enriched tomato fruit with the control group, we identified an aggregate of 269 differentially expressed proteins. Proteins involved in carbohydrate metabolism, amino acids metabolism, and secondary metabolism were highly affected by Se treatment. The results help elucidate the mechanism of Se treatment on improved nutritional quality of tomato fruit.

在这项工作中，研究了硒对番茄果实营养品质的影响。结果表明，施用1 mg L ^-1硒酸钠叶面喷雾剂可增加果实中的硒含量，而不会影响其他金属的其他浓度。硒处理提高了粉红色番茄果实中可溶性糖（葡萄糖和果糖），氨基酸和生物活性化合物（如黄酮类，谷胱甘肽，维生素C和维生素E）的含量。在商业收获阶段对番茄果实使用等压标记进行相对和绝对定量的蛋白质组学分析。当将富硒番茄果实与对照组进行比较时，我们鉴定出269种差异表达蛋白质的聚集体。硒处理会严重影响参与碳水化合物代谢，氨基酸代谢和次级代谢的蛋白质。研究结果有助于阐明硒处理改善番茄果实营养品质的机制。