Penicillium solitum on citrus. Image by Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org, licensed under a Creative Commons Attribution-Noncommercial 3.0 License.

Penicillium solitum is a member of the Aspergillaceae family from the Eurotiales order and is a pathogen of a variety of plant hosts, primarily members of the Rosaceae family. Like many Penicillia, P. solitum is also capable of producing a large array of interesting secondary metabolites and its genome sequence may prove valuable for discovery of novel industrially-relevant compounds.