The newly funded PhD program 'Microbial Nitrogen Cycling – From Single Cells to Ecosystems' invites applications for 10 PhD positions. The program offers a unique and outstanding multidisciplinary PhD training from the three complementary areas of Microbial Ecology, Functional Genomics and Ecosystem Research. The program will be open to students who hold a Master of Science degree (or equivalent qualification) in Ecology, Biogeochemistry, Environmental Microbiology, Molecular Biology Bioinformatics or related fields. The official language of the program is English.