The Zoospore of Allomyces

Abstract

SUMMARY: The arrangement of cellular organelles within the zoospores of Allomyces macrogynus and A. neo-moniliformis was found to be very similar to that observed in the zoospores of Monoblepharella (Monoblepharidales). Principal among these differences are the presence in Allomyces of a distinct nuclear cap, a set of 27 microtubules, a nucleus adjacent to the kinetosome, and the side body which includes the here-named Stüben bodies. Certain previous observations, including the reported absence of microtubules, of the ultrastructure of the zoospore of Allomyces have been corrected or amended.