In the face of mass extinction, wood-decay fungi is one group of species under serious threat. Since the normal ways (protection of forest areas and leaving dead wood in managed forests) do not seem to help these species alone, we need complementary methods to save them. Thus, we will investigate novel approaches to the cultivation and reintroduction of rare and endangered fungi. The methods we develop will tackle multiple sustainability challenges, including direct species preservation, sustainable dead-wood management, and economic feasibility for certain aspects of forestry biodiversity conservation.