Figure 5.

Phase contrast video microscopic analysis of aggregate formation in wild-type and rip3 null cells. (A) Phase contrast video microscopy of wild-type cells is depicted as described previously. Briefly, cells are plated as a monolayer on nonnutrient agar and examined by phase contrast video microscopy using a 4× objective. The solid white arrows point to some of the aggregation centers. The open white arrows point to the outer regions of individual aggregation domains. Only a few of these are marked. (B) rip3 null cells. A similar analysis was performed on rip3 null cells.