Dapi

Cambial region of hybrid poplar.

Dapi staining; nuclei are shown as white circular objects in living cells. The large pores in the lower half of the image are developing/expanding vessel elements. This is where the properties of the xylem are determined. We studied gene expression in the cambial region; see Lenka Plavcova's 2013 paper in PCE.

Photo: Uwe Hacke