Figure 5.

The percentage of Arabidopsis thaliana WT and ncb-1 plants with yellow and green leaves after 5 d of hypoxia (A). The 1602 leaves of 472 WT and 1448 leaves of 424 ncb-1 plants from three different experiments were analyzed. Quantitative analysis of poly(A) RNA in the nuclei of meristematic roots cells of WT and ncb-1 plants (B) under normoxia and after 1 h, 12 h and 48 h hypoxia. Differences in the amount of poly(A) RNA between WT and ncb-1 were observed only after 48 h of stress. The tables under each plot present the significant differences between groups, with testing probability below the value shown in the table (P<), α = 0.05. In the column heading, the number of analyzed cells in each stage is presented in brackets. ns - nonsignificant differences between groups. Localization of poly(A) RNA in root cells WT (C-F) and ncb-1 (G-J) plants under normoxia (C, G) and after 1 h (D, H), 12 h (E, I) and 48 h (F, J) under hypoxia. Arrows indicate Cajal bodies. Bar, 20 µm.