Using an in vivo pulse-chase type of experiment, I will test whether stalk proteins are delivered directly to the stalk. ... A range of xylose concentrations will be tested for protein induction to find the minimal concentration needed for visible expression of the Eos-fusion. ... To test this possibility, I have identified a protein, CC1398, which when fused to mCherry localizes to both the stalk and the cell body (Fig. 2). ...