Interactions between Auxin, Microtubules and XTHs Mediate Green Shade- Induced Petiole Elongation in Arabidopsis
Figure 9
Auxin can rescue the effect of cortical microtubule disruption on XTH expression during shade avoidance.
(A–C) Relative transcript abundance of three green shade-induced XTH genes that were also auxin regulated, after 24 h of white light (white bars) or green shade (gray bars) treatment with individual and combined oryzalin and NAA pre-treatments. Values are expressed on a log2 fold scale and were normalized using AtUBQ10 as an internal control. Data points represent means ± SE (n = 5). Different letters above each bar indicate statistically significant differences (P<0.05, Tukey's b test).