TEM images of plastids in the Arabidopsis calli of Col, AtOR, AtORHis, and AtPSY transgenic lines as well as in the orange curd of BoORMut cauliflower mutant. Plastids with plastoglobuli were observed in the calli of Col, AtOR, and AtPSY transgenic lines. Characteristic membranous chromoplasts found in the curd of BoORMut cauliflower mutant were observed in the AtORHis transgenic lines. Bar = 0.5 μm.