TY - JOUR

T1 - Mechanical behavior of cells within a cell-based model of wheat leaf growth

AU - Zubairova, Ulyana

AU - Nikolaev, Sergey

AU - Penenko, Aleksey

AU - Podkolodnyy, Nikolay

AU - Golushko, Sergey

AU - Afonnikov, Dmitry

AU - Kolchanov, Nikolay

PY - 2016/12/15

Y1 - 2016/12/15

N2 - 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.

AB - 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.

KW - Autonomous cell growth

KW - Cell mechanics

KW - Cell-based models

KW - Osmotic and turgor pressure

KW - Symplastic growth

KW - Wheat leaf epidermis

KW - WALL

KW - wheat leaf epidermis

KW - cell mechanics

KW - osmotic and turgor pressure

KW - APICAL MERISTEM

KW - autonomous cell growth

KW - CELLULOSE SYNTHASE COMPLEXES

KW - DIVISION

KW - MORPHOGENESIS

KW - cell-based models

KW - symplastic growth

KW - ELONGATION

KW - EXPANSION

KW - PLANTS

KW - ARABIDOPSIS

KW - PRIMARY ROOT

UR - http://www.scopus.com/inward/record.url?scp=85025713775&partnerID=8YFLogxK

U2 - 10.3389/fpls.2016.01878

DO - 10.3389/fpls.2016.01878

M3 - Article

C2 - 28018409

AN - SCOPUS:85025713775

VL - 7

JO - Frontiers in Plant Science

JF - Frontiers in Plant Science

SN - 1664-462X

IS - DECEMBER2016

M1 - 1878

ER -