Figure 10.

Representative transmission electron micrographs of chloroplasts. Leaves from 7-week-old wild-type and mutant plants that were dark-adapted for 16 h (“dark”) or further illuminated for 3 h at 120 μmol photons m⁻² s⁻¹ (“light”) were fixed in dim green light for electron microscopy. Arrowhead, stroma thylakoids; Cw, cell wall; G, granum; S, starch; St, chloroplast stroma; V, vacuole. Scale bar: 1 μm.