Fig. 2
From:Genetic analysis of the barley variegation mutant,grandpa1.a
Chloroplast ultrastructure observed with a transmission electron microscope. Functional chloroplasts are well organized in the WT cells (A-C). Chloroplast are not developed in the white section of BW397 (a）．Lamellae and stacked grana are missing in these undifferentiated plastids (b,c）．C, chloroplast; G, grana; L, lamellae, P, plastid