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Fig. 7 | BMC Plant Biology

Fig. 7

From: Effects of different water conditions on the biomass, root morphology and aerenchyma formation in bermudagrass (Cynodon dactylon (L.) Pers)

Fig. 7

Ultrastructural changes of aerenchyma formation in the root cortex of bermudagrass. Pre-cavity phase (A-B): regular cell morphology, dense protoplasm and rich organelles. Cavity formation phase (C-E): (C) arisen central vacuole, chromatin agglutinated and marginalized (arrow); (D) a large number of vesicles; (E) broken vacuole membrane (arrow). Cavity expansion phase (F-J): (F-G) broken down plasma membrane (arrow) and appeared vesicles (arrow); (H-J) further degraded protoplasts and contents. Mature cavity phase (K-L): (K) completely degraded organelles; (L) deformed cell wall and formed aerenchyma cavity. W: cell wall, N: cell nucleus, Nu: nucleolus, PM: plasma membrane, V: vacuole, Ve: vesicle, T: tonoplast, M: mitochondria. Scale bars: A, B, D, G, I, L = 100 nm; C, E, F, H, J, K = 2 μm

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