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17. High production of flavonols and anthocyanins in Eruca sativa (Mill) Thell plants at high artificial LED light intensities.

Author

Veremeichik GN, Grigorchuk VP, Makhazen DS, Subbotin EP, Kholin AS, Subbotina NI, Bulgakov DV, Kulchin YN, and Bulgakov VP

Subjects
Tandem Mass Spectrometry, Plant Leaves metabolism, Light, Chlorophyll metabolism, Flavonoids metabolism, Anthocyanins metabolism, Flavonols metabolism
Abstract

Eruca sativa (arugula) is a food crop containing valuable bioactive flavonoids. Plants growing with monochrome light-emitting diodes (LED) and "binary" light sources, including red/blue (RB), were tested using HPLC-DAD-ESI-MS/MS. Most artificial lighting options with a high intensity of 1000 μmol m -2 s -1 (except for warm white light) resulted in an almost 20-fold increase in flavonol productivity. Monochromatic sources had no advantage over white light in terms of increasing anthocyanin productivity. However, RB light increased the anthocyanin content and productivity of E. sativa plants by more than ten times compared to white light. Plant growth on monochromatic and binary sources at high intensities was comparable to that on white light. Measurement of the content of chlorophyll and its degradation product, phyllobilins, showed that plants are not under stressful conditions. Overall, our data show that a significant increase in flavonoid content can be achieved without a loss of arugula plant biomass., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Ltd. All rights reserved.)

Published
2023
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