Reduction of ferric chelate caused by various wood-rot fungi

Abstract

The reduction of ferric chelate caused by various wood-rot fungi was analyzed. Ferric chelate reductive activity was detected in cell-free extracts of seven wood-rot fungi: Phanerochaete chrysosporium, P. sordida YK-624, Ganoderma sp. YK-505, Coriolus versicolor, Bjerkandera adusla, Tyromyces palustris, and Gloeophyllum trabeum. These fungi produced NADPH- or NADH-dependent ferric chelate reductive enzymes (or both) of different molecular weight. In the liquid culture of P. sordida YK-624 and C. versicolor, a positive correlation was observed between extracellular MnP activity and intracellular NADPH-dependent ferric chelate reductive activity. © The Japan Wood Research Society 1999.