Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, China.
School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 221116, China.
Food Chem. 2020 Jun 15;315:126275. doi: 10.1016/j.foodchem.2020.126275. Epub 2020 Jan 22.
The effects of individual epi-brassinolide (eBL) and NaCl, as well as their combination on contents of main phytochemicals and antioxidant capacity of Chinese kale sprouts were investigated. Our results showed that the application of 100 nM eBL decreased the contents of individual and total glucosinolates, while treatments of 160 mM NaCl both alone and combined with 100 nM eBL enhanced the glucosinolates accumulation by promoting the expression of genes involved in glucosinolate biosynthesis in Chinese kale sprouts and the combined treatment led to significantly higher content of most glucosinolate profiles. Moreover, it also elevated the contents of ascorbic acid and total carotenoids, whereas did not influence the total phenolics and antioxidant capacity. These findings indicated that the combined treatment of 100 nM eBL plus 160 mM NaCl could provide a new strategy to improve the main health promoting compounds in Chinese kale sprouts.
研究了个体表油菜素内酯（eBL）和 NaCl 以及它们的组合对芥蓝芽中主要植物化学物质含量和抗氧化能力的影响。我们的结果表明，应用 100 nM eBL 降低了个体和总硫代葡萄糖苷的含量，而单独使用 160 mM NaCl 以及与 100 nM eBL 联合处理均通过促进参与硫代葡萄糖苷生物合成的基因的表达增强了硫代葡萄糖苷的积累，并且联合处理导致大多数硫代葡萄糖苷图谱的含量显著增加。此外，它还提高了抗坏血酸和总类胡萝卜素的含量，而对总酚类物质和抗氧化能力没有影响。这些发现表明，100 nM eBL 加 160 mM NaCl 的联合处理可以为提高芥蓝芽中主要促进健康的化合物提供一种新策略。
