Tensile and compressive stresses in tracheids are induced by swelling based on geometrical constraints of the wood cell

@article{Burgert2007TensileAC,
  title={Tensile and compressive stresses in tracheids are induced by swelling based on geometrical constraints of the wood cell},
  author={Ingo Burgert and Michaela Eder and Notburga Gierlinger and Peter Fratzl},
  journal={Planta},
  year={2007},
  volume={226},
  pages={981-987}
}
Plants are able to pre-stress their tissues in order to actuate their organs. Here, we demonstrate with two tissue types of the secondary xylem of conifers (normal wood and compression wood of spruce (Picea abies)) that either tensile or compressive stresses can develop in the longitudinal direction during the swelling of the cell wall. This dramatic difference appears to be due mostly to differences in cell geometry and cellulose fibril orientation. A mechanical model was developed to… CONTINUE READING

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