Tilted cellulose arrangement as a novel mechanism for hygroscopic coiling in the stork's bill awn.

@article{Abraham2012TiltedCA,
  title={Tilted cellulose arrangement as a novel mechanism for hygroscopic coiling in the stork's bill awn.},
  author={Yael Abraham and Carmen Tamburu and Eugenia Klein and John W C Dunlop and Peter Fratzl and Uri Raviv and Rivka Elbaum},
  journal={Journal of the Royal Society, Interface},
  year={2012},
  volume={9 69},
  pages={640-7}
}
The sessile nature of plants demands the development of seed-dispersal mechanisms to establish new growing loci. Dispersal strategies of many species involve drying of the dispersal unit, which induces directed contraction and movement based on changing environmental humidity. The majority of researched hygroscopic dispersal mechanisms are based on a bilayered structure. Here, we investigate the motility of the stork's bill (Erodium) seeds that relies on the tightening and loosening of a… CONTINUE READING

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