3 Citations (Scopus)

Abstract

Understanding the principles and mechanisms of cell growth coordination in plant tissue remains an outstanding challenge for modern developmental biology. Cell-based modeling is a widely used technique for studying the geometric and topological features of plant tissue morphology during growth. We developed a quasi-one-dimensional model of unidirectional growth of a tissue layer in a linear leaf blade that takes cell autonomous growth mode into account. The model allows for fitting of the visible cell length using the experimental cell length distribution along the longitudinal axis of a wheat leaf epidermis. Additionally, it describes changes in turgor and osmotic pressures for each cell in the growing tissue. Our numerical experiments show that the pressures in the cell change over the cell cycle, and in symplastically growing tissue, they vary from cell to cell and strongly depend on the leaf growing zone to which the cells belong. Therefore, we believe that the mechanical signals generated by pressures are important to consider in simulations of tissue growth as possible targets for molecular genetic regulators of individual cell growth.

Original languageEnglish
Article number1878
Number of pages15
JournalFrontiers in Plant Science
Volume7
Issue numberDECEMBER2016
DOIs
Publication statusPublished - 15 Dec 2016

Keywords

  • Autonomous cell growth
  • Cell mechanics
  • Cell-based models
  • Osmotic and turgor pressure
  • Symplastic growth
  • Wheat leaf epidermis
  • WALL
  • wheat leaf epidermis
  • cell mechanics
  • osmotic and turgor pressure
  • APICAL MERISTEM
  • autonomous cell growth
  • CELLULOSE SYNTHASE COMPLEXES
  • DIVISION
  • MORPHOGENESIS
  • cell-based models
  • symplastic growth
  • ELONGATION
  • EXPANSION
  • PLANTS
  • ARABIDOPSIS
  • PRIMARY ROOT

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