TY  - JOUR
A1  - Baldermann, Susanne
A1  - Homann, Thomas
A1  - Neugart, Susanne
A1  - Chmielewski, Frank M.
A1  - Götz, Klaus-Peter
A1  - Gödeke, Kristin
A1  - Huschek, Gerd
A1  - Morlock, Gertrud E.
A1  - Rawel, Harshadrai Manilal
T1  - Selected Plant Metabolites Involved in Oxidation-Reduction Processes during Bud Dormancy and Ontogenetic Development in Sweet Cherry Buds (Prunus avium L.)
JF  - Molecules
N2  - 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.
KW  - dormancy
KW  - redox-metabolites
KW  - phenolics
KW  - ascorbate
KW  - anti-oxidative capacity
KW  - Prunus avium L.
KW  - flower buds
Y1  - 2018
U6  - https://doi.org/10.3390/molecules23051197
SN  - 1420-3049
VL  - 23
IS  - 5
SP  - 1
EP  - 19
PB  - Molecular Diversity Preservation International
CY  - Basel
ER  - 
TY  - JOUR
A1  - Neugart, Susanne
A1  - Wiesner-Reinhold, Melanie
A1  - Frede, Katja
A1  - Jander, Elisabeth
A1  - Homann, Thomas
A1  - Rawel, Harshadrai Manilal
A1  - Schreiner, Monika
A1  - Baldermann, Susanne
T1  - Effect of Solid Biological Waste Compost on the Metabolite Profile of Brassica rapa ssp chinensis
JF  - Frontiers in plant science : FPLS
N2  - Large quantities of biological waste are generated at various steps within the food production chain and a great utilization potential for this solid biological waste exists apart from the current main usage for the feedstuff sector. It remains unclear how the usage of biological waste as compost modulates plant metabolites. We investigated the effect of biological waste of the processing of coffee, aronia, and hop added to soil on the plant metabolite profile by means of liquid chromatography in pak choi sprouts. Here we demonstrate that the solid biological waste composts induced specific changes in the metabolite profiles and the changes are depending on the type of the organic residues and its concentration in soil. The targeted analysis of selected plant metabolites, associated with health beneficial properties of the Brassicaceae family, revealed increased concentrations of carotenoids (up to 3.2-fold) and decreased amounts of glucosinolates (up to 4.7-fold) as well as phenolic compounds (up to 1.5-fold).
KW  - metabolite profiling
KW  - LC/MS
KW  - pak choi
KW  - carotenoids
KW  - phenolic compounds
KW  - glucosinolates
Y1  - 2018
U6  - https://doi.org/10.3389/fpls.2018.00305
SN  - 1664-462X
VL  - 9
PB  - Frontiers Media
CY  - Lausanne
ER  -