| All enzyme assays were performed with naked seeds, i.e. seeds from which the pericarp was removed. |
| Endosperm refers to the rest of the seed, i.e. the seed coat, pericarp, aleurone layer, and starchy endosperm. |
| Grains showing longitudinal red striations of differing intensity and shades, due to residues from the pericarp. |
| The resulting kernel pigmentation phenotype consists of colorless pericarp with red sectors. |
| While the subaleurone cells were intensively labelled, no label was seen in the outer layers of the grain, i.e. in the testa, pericarp and husk. |
| Bruises: soft areas or spots in the pericarp or in the skin caused by knocks or compressions. |
