, Volume 187, Issue 2, pp 218–220 | Cite as

Control of thickness of collenchyma cell walls by pectins

  • M. C. Jarvis


Near-isotropic stresses were generated within collenchyma cell walls of celery (Apium graveolens L.) by exchanging K+ for Ca2+ ions, varying the ionic strength and de-esterifying the pectic carboxyl groups, treatments that changed the free-charge density of the pectic polysaccharides. The collenchyma strands swelled radially with increasing free-charge density but there was very little longitudinal swelling. Depolymerising the pectins by β-elimination also induced much more radial than longitudinal swelling. Supported by earlier work on Nitella, these results indicate that pectins control the interlamellar spacing in cell walls and hold them together across their thickness, particularly against turgor stresses tending to delaminate the walls at the cell corners.

Key words

Anisotropy (cell wall) Apium (cell wall thickness) Cell wall (thickness, charge density) Collenchyma Stress, mechanical (cell wall) Pectin 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Bartley, I.M., Knee, M. (1982) The chemistry of textural changes in fruit during storage. Food Chem. 9, 47–58Google Scholar
  2. Esau, K. (1977) Anatomy of seed plants. Wiley, New YorkGoogle Scholar
  3. Fry, S.C. (1989) The structure and functions of xyloglucan. J. Exp. Bot. 40, 1–11Google Scholar
  4. Jarvis, M.C. (1982) The proportion of calcium-bound pectin in plant cell walls. Planta 154, 344–346Google Scholar
  5. Jarvis, M.C. (1984) Structure and properties of pectin gels in plant cell walls. Plant Cell Environ. 7, 153–164Google Scholar
  6. Jarvis, M.C., Apperley, D.C. (1990) Direct observation of cell wall structure in living plant tissues by solid-state 13C NMR spectroscopy. Plant Physiol. 92, 61–65Google Scholar
  7. Jarvis, M.C., Logan, A.S., Duncan, H.J. (1984) Tensile characteristics of collenchyma cell walls at different calcium contents. Physiol. Plant. 61, 81–86Google Scholar
  8. Morikawa, H., Hayashi, R., Senda, M. (1978) Infrared analysis of pea stem cell walls and oriented structure of matrix polysaccharides in them. Plant Cell Physiol. 19, 1151–1159Google Scholar
  9. Morikawa, H., Senda, M. (1974) Oriented structure of matrix polysaccharides in, and extension growth of Nitella cell wall. Plant Cell Physiol. 15, 1139–1142Google Scholar
  10. Pilet, P.-E., Roland, J.-C. (1974) Growth and extensibility of collenchyma cells. Plant Sci. Lett. 2, 203–207Google Scholar
  11. Probine, M.C., Preston R.D. (1961) Cell growth and the structure and mechanical properties of the wall in internodal cells of Nitella opaca.I. Wall structure and growth. J. Exp. Bot. 12, 261–282Google Scholar
  12. Richards, E.G. (1980) An introduction to the physical properties of large molecules in solution. Cambridge University Press, Cambridge, UKGoogle Scholar
  13. Virk, S.S., Cleland, R.E. (1990) The role of wall calcium in the extension of cell walls of soybean hypocotyls. Planta 182, 559–564CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • M. C. Jarvis
    • 1
  1. 1.Agricultural, Food and Environmental Chemistry, Chemistry DepartmentGlasgow UniversityGlasgowUK

Personalised recommendations