In a world where population is outgrowing land availability for food supply, plant biotechnology needs to be addressed and implemented as an aid to higher productivity. The continuous use of antibiotics has also resulted in multiresistant bacterial strains all over the world. As a consequence, growing research has taken place to look for naturally produced plant compounds with antibiotic properties. In the last years, new natural peptides, among them the highly interesting group of cyclotides, have thus been discovered. They have shown anti­microbial properties while posing no harm to...