Oxalate Crystallization under the Action of Brown Rot Fungi

Brown rot fungi belong to the wood-rotting fungi, which produce oxalic acid and actively decompose wood. We first found oxalates formed under action of brown in natural conditions on stone (Rogoselga adit, Karelia, Russia), proposed a model for their formation, confirmed hypothesis that frequent occurrence metal mines adits may be associated with activity these fungi. synthesized four species brown-rot (Serpula himantioides, Serpula lacrymans, Coniophora puteana, Antrodia xantha) different mineral substrates analogs all known biofilm oxalate minerals such toxic heavy metals as Pb, Cu, Mn. In addition, we compared features formation soil fungus Aspergillus niger, an active producer, widely used experiments recommended application biotechnologies. It is shown contrast A.niger, contribution metabolic crystallization exceeds underlying minerals. The prospects use xantha modern environmentally friendly biotechnologies are justified.