Figure 3
From: The stage of seed development influences iron bioavailability in pea (Pisum sativum L.)
Discrete spots of iron are associated with amyloplasts in pea seeds. NanoSIMS localization of iron in sections of immature pea seeds (JI1194) at 22–24 DAF. The images are representative of 6 analysed regions from the cotyledon, 6 from the embryo axis and 2 regions from the seed coat, showing either small cell types or large storage parenchyma cells. The ion-induced secondary electron image is shown in grey scale and the 56Fe16O− signal is shown superimposed in red. Images with the 56Fe16O− signal only are shown in Figure S5. The dark oval features observed in the larger cells are starch-filled amyloplasts.
