Effects of Sporulation Medium and Age on Fungus Spore Physiology.

Abstract
The sporulation medium affects spores of Myrothecium verrucaria, Memnoniella echinata, and Aspergillus luchuensis qualitatively as well as quantitatively. M. v. from cellulose is much longer-lived than from succinate, peptone, potato dextrose, or sucrose plus yeast extract cultures. Changes in dry weight and respiratory activity with age also differ. Nitrogen varies from 2 to 15% of dry weight. Salts stimulate endogenous respiration of M. e. and A. 1. from certain media. Azide may either stimulate or inhibit the salt effect and the endogenous respiration of A. 1.