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Molecules 2018, 23(5), 1197; https://doi.org/10.3390/molecules23051197

Selected Plant Metabolites Involved in Oxidation-Reduction Processes during Bud Dormancy and Ontogenetic Development in Sweet Cherry Buds (Prunus avium L.)

1
Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Potsdam, Germany
2
Leibniz Institute of Vegetable and Ornamental Crops (IGZ), Theodor-Echtermeyer-Weg 1, 14979 Großbeeren, Germany
3
Agricultural Climatology, Faculty of Life Sciences, Humboldt-University of Berlin, Albrecht-Thaer-Weg 5, 14195 Berlin, Germany
4
IGV-Institut für Getreideverarbeitung GmbH, Arthur-Scheunert-Allee 40/41, 14558, Nuthetal OT Bergholz-Rehbrücke, Germany
5
Chair of Food Sciences, Institute of Nutritional Science, Interdisciplinary Research Center (IFZ), Justus Liebig University Giessen, Heinrich Buff Ring 26-32, D-35392 Giessen, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Helen D. Skaltsa
Received: 3 April 2018 / Revised: 14 May 2018 / Accepted: 16 May 2018 / Published: 17 May 2018
(This article belongs to the Special Issue Biological Activity of Secondary Metabolites)
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Abstract

Many biochemical processes are involved in regulating the consecutive transition of different phases of dormancy in sweet cherry buds. An evaluation based on a metabolic approach has, as yet, only been partly addressed. The aim of this work, therefore, was to determine which plant metabolites could serve as biomarkers for the different transitions in sweet cherry buds. The focus here was on those metabolites involved in oxidation-reduction processes during bud dormancy, as determined by targeted and untargeted mass spectrometry-based methods. The metabolites addressed included phenolic compounds, ascorbate/dehydroascorbate, reducing sugars, carotenoids and chlorophylls. The results demonstrate that the content of phenolic compounds decrease until the end of endodormancy. After a long period of constancy until the end of ecodormancy, a final phase of further decrease followed up to the phenophase open cluster. The main phenolic compounds were caffeoylquinic acids, coumaroylquinic acids and catechins, as well as quercetin and kaempferol derivatives. The data also support the protective role of ascorbate and glutathione in the para- and endodormancy phases. Consistent trends in the content of reducing sugars can be elucidated for the different phenophases of dormancy, too. The untargeted approach with principle component analysis (PCA) clearly differentiates the different timings of dormancy giving further valuable information. View Full-Text
Keywords: dormancy; redox-metabolites; phenolics; ascorbate; anti-oxidative capacity; Prunus avium L.; flower buds dormancy; redox-metabolites; phenolics; ascorbate; anti-oxidative capacity; Prunus avium L.; flower buds
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Baldermann, S.; Homann, T.; Neugart, S.; Chmielewski, F.-M.; Götz, K.-P.; Gödeke, K.; Huschek, G.; Morlock, G.E.; Rawel, H.M. Selected Plant Metabolites Involved in Oxidation-Reduction Processes during Bud Dormancy and Ontogenetic Development in Sweet Cherry Buds (Prunus avium L.). Molecules 2018, 23, 1197.

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