Article CC BY 4.0
refereed
published

Influence of the Abiotic Stress Conditions, Waterlogging and Drought, on the Bitter Sensometabolome as Well as Agronomical Traits of Six Genotypes of Daucus carota

GND
1180414934
Affiliation
Food Chemistry and Molecular Sensory Science, Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
Schmid, Christian;
Affiliation
Food Chemistry and Molecular Sensory Science, Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
Sharma, Sapna;
Affiliation
Food Chemistry and Molecular Sensory Science, Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
Stark, Timo D.;
Affiliation
Food Chemistry and Molecular Sensory Science, Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
Günzkofer, Daniela;
GND
1197553320
Affiliation
Food Chemistry and Molecular Sensory Science, Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
Hofmann, Thomas F.;
GND
1058930036
Affiliation
Julius Kühn-Institute (JKI), Institute for Ecological Chemistry, Plant Analysis and Stored Product Protection, Germany
Ulrich, Detlef;
GND
1059150336
Affiliation
Julius Kühn-Institute (JKI), Institute for Breeding Research on Horticultural Crops, Germany
Dunemann, Frank;
GND
1059150638
Affiliation
Julius Kühn-Institute (JKI), Institute for Breeding Research on Horticultural Crops, Germany
Nothnagel, Thomas;
GND
1028947283
Affiliation
Food Chemistry and Molecular Sensory Science, Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
Dawid, Corinna

Cultivated carrot is one of the most important vegetable plants in the world and favored by consumers for its typically sweet flavor. Unfortunately, the attractive sensory quality is hindered by a sporadic bitter off-taste. To evaluate the influence of the abiotic stress conditions, waterlogging and drought, on the bitter sensometabolome as well as agronomical traits of six genotypes of Daucus carota, a field trial was performed. Enabling the accurate tracing of carrots’ bitter compounds and therefore their metabolic changes, a fast and robust high-throughput UHPLC-MS/MS was developed and validated. Remarkably, the genotypes are the driving source for the biological fate of the bitter metabolites that are reflected in concentrations, dose-over-threshold factors, and fold changes. A certain influence of the irrigation level is observable but is overruled by its cultivar. Therefore, metabolic stress response in carrots seems to be genotype dependent. Hence, this study might help to plant specific carrot genotypes that are adapted to stress conditions evoked by future climatic changes.

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