Mutation or drug-dependent microtubule disruption causes radial swelling without altering parallel cellulose microfibril deposition in Arabidopsis root cells.

@article{Sugimoto2003MutationOD,
  title={Mutation or drug-dependent microtubule disruption causes radial swelling without altering parallel cellulose microfibril deposition in Arabidopsis root cells.},
  author={Keiko Sugimoto and Regina Himmelspach and R. E. Williamson and Geoffrey O Wasteneys},
  journal={The Plant cell},
  year={2003},
  volume={15 6},
  pages={1414-29}
}
As critical determinants of growth anisotropy in plants, cortical microtubules are thought to constrain the movement of cellulose synthase complexes and thus align newly deposited cellulose microfibrils. We tested this cellulose synthase constraint model using the temperature-sensitive mor1-1 mutant of Arabidopsis. Contrary to predictions, the disruption of cortical microtubules in mor1-1 root epidermal cells led to left-handed root twisting and radial swelling but did not alter the transverse… CONTINUE READING