Bogland tormentil: a wildflower unlocking new ways to fight resistant bacteria

Lab tests show tormentil root extracts from bogland inhibit growth of antibiotic‑resistant bacteria, reduce biofilm formation, and boost the effectiveness of the antibiotic colistin at low doses. The active compounds ellagic acid and agrimoniin appear to work by iron chelation, starving bacteria of a key nutrient and hindering growth, pointing to a potential plant‑derived route to new antimicrobials and combination therapies.