+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Plasmolysis plasmodesmata and the electrical coupling of oat coleoptile cells

Plasmolysis plasmodesmata and the electrical coupling of oat coleoptile cells

Journal of Experimental Botany 29(112): 1205-1214

Ultrastructural studies on oat coleoptile parenchyma cells (Avena sativa L. cv. Victory) reveal that severe plasmolysis either breaks plasmodesmatal connections or leaves the protoplasts still connected via strands of cytoplasm (Hechtian strands). Plasmolysis also induces the formation of callose around the plasmodesmata. The callose remains for several hours after recovery of the cells to full turgor. mmediately following recovery of turgor, intercellular electrical coupling cannot be detected. During the next 6 h some degree of coupling is restored. While plasmolysis does not necessarily break all plasmodesmatal connections, the treatment probably does disrupt them sufficiently to interfere, at least temporarily, with symplastic transport.

(PDF same-day service: $19.90)

Accession: 006133339

Download citation: RISBibTeXText

DOI: 10.1093/jxb/29.5.1205

Related references

Behaviour of plasma membrane, cortical ER and plasmodesmata during plasmolysis of onion epidermal cells. Plant Cell & Environment 17(2): 163-171, 1994

Plasmolysis form and membrane permeability of hordeum vulgare coleoptile cells infected by erysiphe graminis. Plant Physiology (Rockville) 69(4 SUPPL): 144, 1982

Effects of plasmolysis and deplasmolysis on the structure of plasmodesmata in Zea mays L leaves. American Journal of Botany 81(6 SUPPL ): 25, 1994

The structure of plasmodesmata as revealed by plasmolysis detergent extraction and protease digestion. Journal of Cell Biology 112(4): 739-748, 1991

Phytochrome control of electrical potentials and intercellular coupling in oat-coleoptile tissue. Planta 132(1): 25-29, 1976

Plasmolysis effect on electrical characteristics of free cells and protoplasts of acer pseudoplatanus. Bioelectrochemistry & Bioenergetics 7(2): 377-391, 1980

Measurement of the electrical resistance of plasmodesmata and membranes of corn suspension-culture cells. Planta 99(4): 537-544, 1996

Electrical properties of oat coleoptile cells. Biophysical Journal 33(2 PART 2): 106A, 1981

Electrical properties of oat avena coleoptile cells. Plant Physiology (Rockville) 65(6 SUPPL): 162, 1980

Electrical properties of the tonoplast of oat coleoptile cells. Plant Physiology (Rockville) 67(4 SUPPL): 161, 1981

Fluorescence and electrical measurements of vacuolar ph of oat coleoptile cells. Plant Physiology (Rockville) 77(SUPPL 4): 144, 1985

Lignification of cell walls of infected cells in Casuarina glauca nodules that depend on symplastic sugar supply is accompanied by reduction of plasmodesmata number and narrowing of plasmodesmata. Physiologia Plantarum 147(4): 524-540, 2013

Endocannabinoid Release Modulates Electrical Coupling between CCK Cells Connected via Chemical and Electrical Synapses in CA1. Frontiers in Neural Circuits 5: 17-17, 2011

Model approaches for the evaluation of electrical cell coupling in the salivary gland of the larva of Drosophila hydei. The influence of lysolecithin on the electrical coupling. Journal of Membrane Biology 19(3): 229-252, 1974