Microtubule self-organization is gravity-dependent.

@article{Papaseit2000MicrotubuleSI,
  title={Microtubule self-organization is gravity-dependent.},
  author={Cyril Papaseit and Nathalie Pochon and James Tabony},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2000},
  volume={97 15},
  pages={8364-8}
}
Although weightlessness is known to affect living cells, the manner by which this occurs is unknown. Some reaction-diffusion processes have been theoretically predicted as being gravity-dependent. Microtubules, a major constituent of the cellular cytoskeleton, self-organize in vitro by way of reaction-diffusion processes. To investigate how self-organization depends on gravity, microtubules were assembled under low gravity conditions produced during space flight. Contrary to the samples formed… CONTINUE READING
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