Fig. 1. Transmission electron micrographs of chloroplasts of cucumber seedlings cultured in basic nutrition solution (BNS, CK, (a)), BNS + 3 μM Se (Se, (b)), BNS + 50 μM Cd (Cd, (c)), and BNS + 50 μM Cd + 3 μM Se (Cd + Se, (d)), respectively. Scale bar = 0.2 μm. CW: cell wall, M: mitochondrion, GL: granal lamellae, Os: osmiophilic plastolobuli, SG: starch grain, SL: stromal lamellae. The figure is representative of three different experiments.
