Shown attacking this dresser: the dry rot Serpula lacrymans var. lacrymans, an aggressive decomposer of the built environment. (Inger Skrede)

Unlike white rots, brown rots break down only the cellulose and hemicellulose, leaving the lignin behind. The brown rot Serpula lacrymans is typically found in spruce and other conifers in boreal forests. As these trees were harvested for constructing buildings, the dry rot fungus migrated indoors and across borders, adapting to thrive in manmade environments. Reported January 5, 2018 in The ISME Journal, a comparative genomics analysis by a team led by University of Oslo scientists and including JGI researchers lends insights on how the fungus has responded to manmade changes in its ecological habitat, adapting to thrive in built environments. Read more on the JGI website.