Serpula lacrymans 2016). The genus "Serpula", including "S. lacrymans" and "S. himantoides", is known to produce three classes of chemical compounds: pulvinic acid-type family, himanimides, and polyine acids. Within the pulvinic acid-type family, atromentin-derived compounds include variegatic acid, xerocomic acid, isoxerocomic acid, atromentic acid, variegatorubin, xerocomorubin, and other variants of these pigments. Pulvinic acid-type family pigments were found to be secreted during co-incubation with various bacteria. Serpula lacrymans Serpula lacrymans is one of the fungi that cause damage to timber referred to as dry rot. It is a basidiomycete in the order Boletales. The species was first described under the name "Boletus
Serpula all sabellids and serpulids employ chlorocruorin as an oxygen transport macromolecule, "Serpula" is the only genus that appears to possess both hemoglobin as well as chlorocruorin. Chlorocruorin is an oxygen-binding hemeprotein whose affinity for oxygen is weaker than that of most hemoglobins. A dichromatic compound, chlorocruorin is noted for appearing green in dilute solutions, though it appears light red when found in concentrated solutions. Its structure is very similar to erythrocruorin, each molecule being composed of more than a hundred interlinked 16-17kDa myoglobin-like subunits arranged in a giant complex with a total weight exceeding 3600kDa. This enormous macromolecule is free