Events occurring during spore germination. Our results suggest that spore germination can be divided into two major stages. Stage I is induced by glucose alone whereas for the transition to stage II other nutrients are necessary. Mitotic cell cycle machinery is involved in spore germination but, in contrast to the cell cycle, growth related events are regulated separately from nuclear events. A model for activation of cell cycle events that occur during stage II of germination is suggested at the lower part of the figure. See Discussion for more details. Septin (Cdc10) is depicted in green. Auto-fluorescence of the spore is depicted in red.