Tags

Type your tag names separated by a space and hit enter

Structurally different flavonol glycosides and hydroxycinnamic acid derivatives respond differently to moderate UV-B radiation exposure.
Physiol Plant. 2012 Aug; 145(4):582-93.PP

Abstract

The aim of this study was to investigate the modifying influence of moderate ultraviolet-B (UV-B) radiation exposure on structurally different flavonol glycosides and hydroxycinnamic acid derivatives during pre-harvest using kale, a leafy Brassica species with a wide spectrum of different non-acylated and acylated flavonol glycosides. Juvenile kale plants were treated with short-term (1 day), moderate UV-B radiation [0.22-0.88 kJ m⁻² day⁻¹ biologically effective UV-B (UV-B(BE))]. Twenty compounds were quantified, revealing a structure-specific response of flavonol glycosides and hydroxycinnamic acid derivatives to UV-B radiation. A dose- and structure-dependent response of the investigated phenolic compounds to additional UV-B radiation was found. The investigated quercetin glycosides decreased under UV-B; for kaempferol glycosides, however, the amount of sugar moieties and the flavonol glycoside hydoxycinnamic acid residue influenced the response to UV-B. Monoacylated kaempferol tetraglucosides decreased in the investigated UV-B range, whereas the monoacylated kaempferol diglucosides increased strongly with doses of 0.88 kJ m⁻² day⁻¹ UV-B(BE) . The UV-B-induced increase in monoacylated kaempferol triglucosides was dependent on the acylation pattern. Furthermore, the hydroxycinnamic acid glycosides disinapoyl-gentiobiose and sinapoyl-feruloyl-gentiobiose were enhanced in a dose-dependent manner under UV-B. While UV-B radiation treatments often focus on flavonol aglycones or total flavonols, our investigations were extended to structurally different non-acylated and acylated glycosides of quercetin and kaempferol.

Authors+Show Affiliations

Leibniz-Institute of Vegetable and Ornamental Crops Grossbeeren/Erfurt e.V., Theodor-Echtermeyer-Weg 1, 14979 Grossbeeren, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22292604

Citation

Neugart, Susanne, et al. "Structurally Different Flavonol Glycosides and Hydroxycinnamic Acid Derivatives Respond Differently to Moderate UV-B Radiation Exposure." Physiologia Plantarum, vol. 145, no. 4, 2012, pp. 582-93.
Neugart S, Zietz M, Schreiner M, et al. Structurally different flavonol glycosides and hydroxycinnamic acid derivatives respond differently to moderate UV-B radiation exposure. Physiol Plant. 2012;145(4):582-93.
Neugart, S., Zietz, M., Schreiner, M., Rohn, S., Kroh, L. W., & Krumbein, A. (2012). Structurally different flavonol glycosides and hydroxycinnamic acid derivatives respond differently to moderate UV-B radiation exposure. Physiologia Plantarum, 145(4), 582-93. https://doi.org/10.1111/j.1399-3054.2012.01567.x
Neugart S, et al. Structurally Different Flavonol Glycosides and Hydroxycinnamic Acid Derivatives Respond Differently to Moderate UV-B Radiation Exposure. Physiol Plant. 2012;145(4):582-93. PubMed PMID: 22292604.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Structurally different flavonol glycosides and hydroxycinnamic acid derivatives respond differently to moderate UV-B radiation exposure. AU - Neugart,Susanne, AU - Zietz,Michaela, AU - Schreiner,Monika, AU - Rohn,Sascha, AU - Kroh,Lothar W, AU - Krumbein,Angelika, Y1 - 2012/02/01/ PY - 2012/2/2/entrez PY - 2012/2/2/pubmed PY - 2012/10/2/medline SP - 582 EP - 93 JF - Physiologia plantarum JO - Physiol Plant VL - 145 IS - 4 N2 - The aim of this study was to investigate the modifying influence of moderate ultraviolet-B (UV-B) radiation exposure on structurally different flavonol glycosides and hydroxycinnamic acid derivatives during pre-harvest using kale, a leafy Brassica species with a wide spectrum of different non-acylated and acylated flavonol glycosides. Juvenile kale plants were treated with short-term (1 day), moderate UV-B radiation [0.22-0.88 kJ m⁻² day⁻¹ biologically effective UV-B (UV-B(BE))]. Twenty compounds were quantified, revealing a structure-specific response of flavonol glycosides and hydroxycinnamic acid derivatives to UV-B radiation. A dose- and structure-dependent response of the investigated phenolic compounds to additional UV-B radiation was found. The investigated quercetin glycosides decreased under UV-B; for kaempferol glycosides, however, the amount of sugar moieties and the flavonol glycoside hydoxycinnamic acid residue influenced the response to UV-B. Monoacylated kaempferol tetraglucosides decreased in the investigated UV-B range, whereas the monoacylated kaempferol diglucosides increased strongly with doses of 0.88 kJ m⁻² day⁻¹ UV-B(BE) . The UV-B-induced increase in monoacylated kaempferol triglucosides was dependent on the acylation pattern. Furthermore, the hydroxycinnamic acid glycosides disinapoyl-gentiobiose and sinapoyl-feruloyl-gentiobiose were enhanced in a dose-dependent manner under UV-B. While UV-B radiation treatments often focus on flavonol aglycones or total flavonols, our investigations were extended to structurally different non-acylated and acylated glycosides of quercetin and kaempferol. SN - 1399-3054 UR - https://www.unboundmedicine.com/medline/citation/22292604/Structurally_different_flavonol_glycosides_and_hydroxycinnamic_acid_derivatives_respond_differently_to_moderate_UV_B_radiation_exposure_ L2 - https://doi.org/10.1111/j.1399-3054.2012.01567.x DB - PRIME DP - Unbound Medicine ER -