Fig. 5

Comparison of a virtual slice obtained from X-ray in-line phase tomography with a real slice obtained from conventional histology. As illustrated in upper panel, slices were taken at the same location in maize seeds both taken at 7 DAP. For X-ray in-line phase image, the colors correspond to pericarp (grey), nucellus (red), endosperm (pink) and embryo (white). The length of the pericarp along the X-axis is taken as the reference (100 %) and the x % correspond to the position of the slice