Ion distribution in leaf cells of Egeria densa
1Department of Ultrastructural Pathology and Electron Microscopy, Central Institute of Occupational Medicine of the GDR, Berlin.
Abstract:
The lement concentrations of intracellular compartments of leaf cells of Egeria densa are estimated by X-ray microanalysis. Ultrathin frozen-dried sections are used in TEM mode. The concentrations of Na, Mg, P, Cl, K, and Ca are determined in the cell wall, cytoplasm and chloroplasts. The cell wall represents a Donnan free space with a negative fixed charge concentration of 360 mval/l water. The water fraction of the cytoplasm is between 85 and 90% and strikes the bounds of possibility of that method.
More Related Videos
13:52Studying the Supramolecular Organization of Photosynthetic Membranes within Freeze-fractured Leaf Tissues by Cryo-scanning Electron Microscopy
Published on: June 23, 2016
08:31Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves
Published on: December 2, 2016
Related Concept Videos
Tonicity in Plants
Introduction to Seed Plants
Light Acquisition
Adaptations that Reduce Water Loss
Distribution of Cytoplasmic Content
Distribution of cytoplasmic determinants
The cytoplasm contains various organelles, as well as salts, proteins, and water. The distribution of small...
Tonicity in Plants
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
