Ionic currents flow through Micrasterias and Closterium cells during expansion of the primary cell wall

Planta ◽  
1991 ◽  
Vol 184 (2) ◽  
pp. 218-225 ◽  
Author(s):  
Cynthia L. Troxell ◽  
Carl Scheffey
Keyword(s):  
Cell Wall ◽  
Ionic Currents ◽  
Primary Cell ◽  
Primary Cell Wall ◽  
Flow Through

scholarly journals A Specialized Outer Layer of the Primary Cell Wall Joins Elongating Cotton Fibers into Tissue-Like Bundles

2009 ◽  
Vol 150 (2) ◽  
pp. 684-699 ◽  
Author(s):  
Bir Singh ◽  
Utku Avci ◽  
Sarah E. Eichler Inwood ◽  
Mark J. Grimson ◽  
Jeff Landgraf ◽  
...  
Keyword(s):  
Cell Wall ◽  
Outer Layer ◽  
Primary Cell ◽  
Primary Cell Wall ◽  
Cotton Fibers

scholarly journals Fractal Dimensions of Cell Wall in Growing Cotton Fibers

2020 ◽  
Vol 4 (1) ◽  
pp. 6
Author(s):  
Michael Ioelovich
Keyword(s):  
Cell Wall ◽  
Fractal Dimension ◽  
Apparent Density ◽  
Pore Volume ◽  
Dimensional Space ◽  
Fractal Dimensions ◽  
Primary Cell ◽  
Primary Cell Wall ◽  
Cotton Fibers ◽  
Specific Pore Volume

In this research, fractal properties of a cell wall in growing cotton fibers were studied. It was found that dependences of specific pore volume (P) and apparent density (ρ) on the scale factor, F = H/h, can be expressed by power-law equations: P = Po F(Dv−E) and ρ = ρo F(E−Dρ), where h is minimum thickness of the microfibrilar network in the primary cell wall, H is total thickness of cell wall in growing cotton, Dv = 2.556 and Dρ = 2.988 are fractal dimensions. From the obtained results it follows that microfibrilar network of the primary cell wall in immature fibers is loose and disordered, and therefore it has an increased pore volume (Po = 0.037 cm3/g) and low density (ρo = 1.47 g/cm3). With enhance days post anthesis of growing cotton fibers, the wall thickness and density increase, while the pore volume decreases, until dense structure of completely mature fibers is formed with maximum density (1.54 g/cm3) and minimum pore volume (0.006 cm3/g). The fractal dimension for specific pore volume, Dv = 2.556, evidences the mixed surface-volume sorption mechanism of sorbate vapor in the pores. On the other hand, the fractal dimension for apparent density, Dρ = 2.988, is very close to Euclidean volume dimension, E = 3, for the three-dimensional space.

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