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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Dev Biol. 2010 Jun 9;345(1):18–33. doi: 10.1016/j.ydbio.2010.05.502

Figure 6. PVD dendritic branches turn 90O to establish orthogonal pattern.

Figure 6

Time-lapse confocal images of L3 larva depict PVDL dendritic outgrowth (anterior left, ventral down). (Top panel) PVD 2O branch makes a 90o turn (arrow) to fasciculate with sub-lateral nerve cord where it becomes a tertiary branch (inset, 0 min). A 3O branch with opposite polarity emerges from the point of turning (arrow) and grows toward the posterior (60 min). 4O branches are established by a similar mechanism (240 min) in which 4O branches at each end of the menorah-like structure (arrowheads) are generated by 90O turns. Additional, interstitial 4O branches emerge from the outer edge of the 3O branch. Scale bar is 5 um. See supplemental movie 3 for example.