Figure 9.

Effects of gadolinium ions on alignment of cortical microtubules in hypocotyls of Arabidopsis tubulin mutants. Wild type (WT) and tubulin mutants were grown as in Figure 8. A, Immunofluorescence images of cortical microtubules. Epidermal cells 10 to 12 were stained as described in “Materials and Methods.” B, Frequency distribution of alignment of cortical microtubules. All values were taken from immunofluorescence micrographs at cells 10 to 12. C, Mean alignment angle of cortical microtubules measured in B ± se (n = 111–278).