Induction and Secretion of RNA-degrading Enzymes by Phosphate Deficiency in Pholiota nameko

Abstract

Changes in activity of RNA-degrading enzyme and amounts of phosphorus in mycelia and culture filtrate during P_i-sufficient and -deficient cultures of Pholiota nameko were investigated. The results showed that the intracellular and extracellular activities are controlled by the P_i concentration in the medium. Moreover, the induction and secretion of RNA-degrading enzymes under the Pi-deficient condition were analyzed by activity staining.