Blue Light Treatment but Not Green Light Treatment After Pre-exposure to UV-B Stabilizes Flavonoid Glycoside Changes and Corresponding Biological Effects in Three Different Brassicaceae Sprouts
نویسندگان
چکیده
Ultraviolet-B (UV-B; 280–315 nm) radiation induces the biosynthesis of secondary plant metabolites such as flavonoids. Flavonoids could also be enhanced by blue (420–490 or green (490–585 light. act antioxidants and shielding components in plant’s response to UV-B exposure. They are shown quench singlet oxygen reactive hydroxyl radical. The aim was determine whether treatment with light can alter flavonoid profiles after pre-exposure they cause corresponding biological effects Brassicaceae sprouts. Based on their different profiles, three vegetables from were selected. Sprouts treated five subsequent doses (equals 5 days) moderate (0.23 kJ m –2 day –1 BE ), which followed two 2 either (99 ?mol s ) (119 In sprouts kale, kohlrabi, rocket salad, glycosides identified HPLC-DAD-ESI-MS n . Both Brassica oleracea species, kale showed mainly acylated quercetin kaempferol glycosides. contrast, main flavonol Blue that increased B. species kohlrabi while—contrary this—in there only increased. general stabilized concentrations while did not have this effect. following exposure resulted a trend scavenging for rocket. radical capacity independent quality except where an led higher capacity. These results underline importance qualities intercept metabolites, but show pronounced species-dependent reaction, is special interest growers.
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ژورنال
عنوان ژورنال: Frontiers in Plant Science
سال: 2021
ISSN: ['1664-462X']
DOI: https://doi.org/10.3389/fpls.2020.611247