The role of wall Ca2+ in the regulation of wall extensibility during the acid-induced extension of soybean hypocotyl cell walls.

@article{Ezaki2005TheRO,
  title={The role of wall Ca2+ in the regulation of wall extensibility during the acid-induced extension of soybean hypocotyl cell walls.},
  author={Naofumi Ezaki and Nobuo Kido and Koji Takahashi and Kiyoshi Katou},
  journal={Plant & cell physiology},
  year={2005},
  volume={46 11},
  pages={1831-8}
}
We examined the acid-facilitated yielding properties of cell walls of soybean hypocotyls and the effects of Ca(2+) upon the properties by stress-strain analyses using glycerinated hollow cylinders (GHCs) from the elongating regions of the hypocotyls. Stress-extension rate curves of native GHCs showed characteristic changes with pH, all indicating the existence of yield threshold tension (y) as well as wall extensibility (phi), i.e. a downward shift of y and an increase in phi with wall… CONTINUE READING

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