Nils joined the Bruns Lab in February of 1996. While in Berkeley, Nils learned the art of ABI sequencing and compiled a molecular data set on various Polypore fungi. Nils returned to Sweden in July of 1996 and continued to work on his PhD in Forest Mycology at the Swedish University of Agricultural Sciences. Nils received his PhD in June of 1998, and returned to the Bruns Lab in July 1998 for a two year post doctoral position to study the mating types within Heterobasidium annosum.
Nils returned to Sweden at the end of June 2000.