Gene activity during zygote germination and early sporophyte germling development in the aquatic fungus, Allomyces macrogynus

Oxygen and Morphological Changes in Allomyces macrogynus

“…It is not possible to say why there is an apparent link between hyphal emergence and DNA replication but the time of emergence also coincides with a spurt in growth and it seems most likely that there is an increased consumption of oxygen which is the real controlling factor. Bruce and Mascarenhas (1977) showed hyphal emergence without nuclear division but without specific comment on this observation. Zygotes often seem to grow more vigorously than zoospores and in addition the prior incubation in the presence of glucose may have provided more substrate for reduction.…”

“…Times of hyphal emergence of Allomyces species have not often been given. Bruce and Mascarenhas (1977) suspended zygotes in glucose buffer solution before inoculating a rich medium with a high spore density and growing the culture in a petri dish. The hyphae emerged in 60-85 min and drawings indicate a single nucleus at this stage.…”