Allelopathy is an emergent field of science, needing competencies in various disciplines such as organic chemistry, plant anatomy, plant physiology, plant ecology. Up until today, the leadership in allelopathy is held by north-American teams. Nevertheless, since about 10 years, few teams in Europe increased their scientific impact in the international competition in allelopathy. This project aims not only at gathering knowledge of those teams but also at creating a synergism by multidisciplinary exchange of methods. This holistic perception of allelopathy should benefit to young scientists, giving them tools to extend the knowledge on chemical interactions in plant science.