Alleviation of Lead Toxicity by 5-Aminolevulinic Acid Is Related to Elevated Growth, Photosynthesis, and Suppressed Ultrastructural Damages in Oilseed Rape
Figure 4
Electron micrographs of root tip cells of 15-day hydroponically grown seedlings of Brassica napus cv. ZS 758. (a-b) TEM micrographs of root tip cells of ZS 758 at control level at low and high magnifications, respectively, show well-developed nucleus (N) with nucleolus, smooth cell wall (CW), clear endoplasmic reticulum (ER), golgi bodies (GB), and well-developed mitochondria (MC). (c-d) TEM micrographs of root tip cells of ZS 758 at 25 mg L−1 5-aminolevulinic acid (ALA) alone at low and high magnifications, respectively, show a clear cell with well-developed nucleus (N) with nucleoli (Nue) and a distinct nuclear membrane, a number of well-developed mitochondria (MC), and continuous endoplasmic reticulum (ER).
