Figure 7. PVD 4^O branches exhibit dynamic growth.

Time-lapse confocal images and schematic tracings of L4 larval stage (anterior left, ventral down) illustrating dynamic outgrowth of 4^O dendrites from established 3^O branches. Nascent 4^O branches (0 min) continue to grow throughout the L4 stage until they produce the mature menorah-like structures observed in the adult. Arrow denotes an example of a maturing 4^O branch. Asterisk (*, 0 min) indicates a nascent 4^O branch that ultimately retracts (60 min). Scale bar indicates 25 um. See supplemental movie 5.