Figure 3.

Subcellular localization of the CsSWEET2-YFP fusion protein in Arabidopsis mesophyll protoplasts. An mCherry-labelled marker (CD3-959) was used to mark the endoplasmic reticulum position. The arrows in (A) point to plasma membranes. An empty vector expressing untargeted YFP was used as a control (B). The green signals indicate YFP, whereas the red signals indicate the endoplasmic reticulum marker. In addition, the blue signals indicate the chlorophyll auto fluorescence. Their merged images and bright field images are also presented. PM, plasma membrane. Scale bars = 10 μm.