Fig. 4.

Branched URX dendritic endings contain microtubules and are likely not an expansion of an oxygen sensory compartment

A.) An example day four wild-type adult grown in high oxygen and expressing soluble mCherry cell-specifically to label URX, and EBP-2: GFP in URX to label microtubules. Scale bar is 5 ​μm.

B.) Localization of GCY-35: GFP in URX in day four wild-type adults grown in high oxygen. Blue arrows label a likely sensory compartment in URX where GCY-35::GFP is highly concentrated in all animals. The red arrows and arrowheads point to an outgrown branch of URX, and green arrows/arrowheads point to either visible GFP, or lack thereof in the branches. 25% of animals examined had visible GFP signal in the outgrown dendritic branches (left), while 75% did not (right). Scale bar is 5 ​μm.