Skip to main content
. 2018 May 16;2018:9248123. doi: 10.1155/2018/9248123

Figure 5.

Figure 5

Electron micrographs of leaf mesophyll cells of 10-day grown seedlings of two rapeseed cultivars (ZS 758 and ZD 622) under control (CK) and different treatments (i.e., Cu 200 μM, Cr 200 μM, and Cu 200 μM + Cr 200 μM). (a, b) TEM micrograph of leaf mesophyll cells of ZS 758 and ZD 622 under control (CK) showing well-developed chloroplasts (Chl) with clear thylakoid membrane (Thy), round mitochondria (MC) with distinct cristae inside, starch grains (SG), plastoglobuli (P), and smooth cell wall (CW). (c) TEM micrograph of leaf mesophyll cells of ZS 758 under Cu treatment showing well-developed chloroplasts (Chl) with bigger starch grains (SG), mature mitochondria (MC), smooth cell wall (CW), and plastoglobuli (P). (d) TEM micrograph of leaf mesophyll cells of ZD 622 under Cu treatment showing plastoglobuli (P), swollen chloroplasts (Chl) with large size starch grains (SG), mitochondria (MC), and clear cell wall (CW). (e) TEM micrograph of leaf mesophyll cells of ZS 758 under Cr treatment showing starch grains (SG), large plastoglobuli (P), swollen chloroplasts (Chl), and mitochondria (MC). (f) TEM micrograph of leaf mesophyll cells of ZD 622 under Cr treatment showing increased size and number of plastoglobuli (P) and starch grains (SG), rough cell wall (CW), and disorganized chloroplasts (Chl). (g) TEM micrograph of leaf mesophyll cells of ZS 758 under Cu+Cr treatment showing starch grains (SG), plastoglobuli (P), swollen chloroplasts (Chl), mitochondria (MC), and thick cell wall (CW). (h) TEM micrograph of leaf mesophyll cells of ZD 622 under Cu+Cr treatment showing increased size plastoglobuli (P) and huge starch grains (SG), rough cell wall (CW), disorganized chloroplasts (Chl), and mitochondria (MC) with fewer cristae inside.