A5039790357- Plant Stress Responses and Tolerance
- Fermentation and Sensory Analysis
- Plant-Microbe Interactions and Immunity
- Plant Gene Expression Analysis
- Genomics, phytochemicals, and oxidative stress
- Wine Industry and Tourism
- Horticultural and Viticultural Research
- Plant tissue culture and regeneration
- Legume Nitrogen Fixing Symbiosis
- Isotope Analysis in Ecology
- Plant Parasitism and Resistance
Federal Institute for Risk Assessment
2021
Technical University of Munich
2015-2019
Summary Root colonization by the beneficial fungus Piriformospora indica is controlled plant innate immunity, but factors that channel this interaction into a mutualistic relationship are not known. We have explored impact of abscisic acid ( ABA ) and osmotic stress on P. with Arabidopsis thaliana . The activation immunity in roots was determined measuring concentration phytoalexin camalexin expression transcription regulating biosynthesis tryptophan‐related defence metabolites. Furthermore,...
In Arabidopsis (Arabidopsis thaliana), a number of defense-related metabolites are synthesized via indole-3-acetonitrile (IAN), including camalexin and indole-3-carboxylic acid (ICOOH) derivatives. Cytochrome P450 71A13 (CYP71A13) is key enzyme for biosynthesis catalyzes the conversion indole-3-acetaldoxime (IAOx) to IAN. The CYP71A13 gene located in tandem with its close homolog CYP71A12, also encoding an IAOx dehydratase. However, indole-3-carbaldehyde cyanide were identified as major...
Cruciferous plants synthesize a large variety of tryptophan-derived phytoalexins in response to pathogen infection, UV irradiation, or high dosages heavy metals. The major Eutrema salsugineum (Thellungiella salsuginea), which has recently been established as an extremophile model plant, are probably derivatives indole glucosinolates, contrast Arabidopsis, synthesizes characteristic camalexin from the glucosinolate precursor indole-3-acetaldoxime. transcriptional E. irradiation and AgNO3 was...
The international wine market has been repeatedly hit by cases of fraud in recent decades. While several studies attested a special vulnerability the fast growing business China, reports on chemical analyses commercial samples are rare. We examined 50 predominantly red wines with European labelling, which were purchased Chinese market, for fraud-relevant parameters. More than 20% tested revealed anomalies relation to stable isotope ratios D/H, 18O/16O and 13C/12C, contents technical glycerol...