The IPB has once again been recognized for its exemplary actions in terms of equal opportunity-oriented personnel and organizational policies and has received the TOTAL E-QUALITY certification for the…
The Plant Science Student Conference (PSSC) has been organised by students from the two Leibniz institutes, IPK and IPB, every year for the last 20 years. In this interview, Christina Wäsch (IPK) and…
Two so far undescribed prenylated acylphloroglucinol derivatives were isolated from Hypericum coris (hypercorisins A-B) together with their two, also yet undescribed, peroxide derivatives (hypercorisins C-D), and seven known compounds (2-geranyloxy-1-(2-methylpropanoyl)-phloroglucinol, sucrose, vanillic acid 4-O-β-D-glucoside, chlorogenic acid, neochlorogenic acid, shikimic acid, quercitrin). The structures were determined by means of 1D and 2D NMR experiments and high-resolution mass spectrometry. Hypercorisins A, B and D induced complete inhibition of the gram-positive bacterium Bacillus subtilis at the highest concentration tested (100 μM) but showed no appreciable antibacterial effect on the gram-negative Aliivibrio fischeri nor cytotoxic activity on PC-3 or HCT-116 cancer cell lines.