Butyltins degradation by Cunninghamella elegans and Cochliobolus lunatus co-culture

► We examined biodegradation of tributyltin (TBT) by fungal co-culture. ► Cunninghamella elegans degraded TBT to DBT and MBT, then Cochliobolus lunatus transformed TBT derivatives. ► We suggested that DBT and MBT elimination has a cometabolic nature. ► The hydroxylated TBT intermediate-hydroxybutyldibutyltin was found.