Oxygen and Morphological Changes in Allomyces macrogynus

Abstract

The supply of oxygen to cultures of A. macrogynus influenced the time of hyphal emergence, the angle of the hyphal tube to the rhizoid and the hyphal diameter. Reduced aeration favoured the release of both zoosporangia and resistant sporangia in cultures. Spores exhibited chemotaxis and hyphae exhibited chemotropism to oxygen.