Fig. 7. Organellar replication: the T. gondii cell cycle. The timeline shows the coordination of major events during T. gondii tachyzoite cell division (see also Table 1). Morphologically visible events span 5 hours, representing 75% of the entire cell cycle [different strains and culture conditions may produce slightly different timing, usually because of differences in the duration of G1 (Fichera et al., 1995; Radke and White, 1998; Radke et al., 2001; Hu et al., 2002; Hu et al., 2004)]. Images show the typical appearance of various organelles during the major morphological transitions associated with their replication (colored circles indicate which organelles are labeled with which color). Data compiled from current studies and previous reports (see Table 1).