Figure 6 | Scientific Reports

Figure 6

From: 2,4-D attenuates salinity-induced toxicity by mediating anatomical changes, antioxidant capacity and cation transporters in the roots of rice cultivars

Figure 6

Electron micrographs of root tips of 15 days-treated rice cultivars (cvs. ZJ 88, XS 134) under control (CK), 2,4-D (T2), sever saline stress (T4) and combined stress treatments (T6). Root tip cells of ZJ 88 and ZX 134 under control (CK) shows well organized internal structure of root cell with smooth nuclear membrane (NM), well developed nucleolus and nucleus (Nu) (a,b). TEM micrographs of root tip cells of ZJ 88 and XS 134 show condense nucleolus and disrupted nucleus (Nu) but less nuclear membrane damage (c,d). TEM micrographs of root tip cells of ZJ 88 and XS 134 also show abnormal mitochondria structure (MTC), rupture nuclear membrane (NM) disintegrated nucleolus (e,f). Root tip cells of ZJ 88 and XS 134 show relatively greater size of nucleolus with swollen mitochondria (MTC) and thick cell walls (g and h). 20-days-old rice seedlings were treated as control (CK) with EC 1.2 dS m−1, T2 (recommended dose of 2,4-D), T4 (EC 8 dS m−1), T6 (EC 8 dS m−1 + recommended dose of 2,4-D) for 15 days. Scale bars = 1 μm. The experiment was repeated three times with similar results.

Back to article page