A postdoctoral stipend is available with an actinorhizal nitrogen-fixing root nodule symbioses. The position is sponsored by the Carl Trygger Foundation to the laboratory of Professor Katharina Pawlowski at Stockholm University in the Department of Ecology, Environment and Plant Sciences. The department has approximately 100 employees, including 25 research groups, 10 postdocs and approximately 35 PhD students; research and teaching are conducted in an international environment.