Plasmodesmata as a Modulator of Osmotic Water Fluxes in Plants

Plasmodesmata as a Modulator of Osmotic Water Fluxes in Plants Solutions to some key problems in the relationships between the structure and functions of plasmodesmata, a component of the plant intercellular communication system, are proposed on the basis of the theory of osmotic flows through porous membranes. The theory accounts for structural characteristics of plasmodesmata, such as their dimension, shape, and length. It considers the steric and adsorption potentials of the solution–cell wall interaction and estimates water and solute (e.g., sucrose) flows under the sustained difference of osmotic pressures at the ends of plasmodesmata. The theory predicts that the water flow through plasmodesmata increases with the widening of the neck constriction and reaches its peak when its size is equal to the diameter of the solute molecule. The water-flow direction was found to depend on the opening of the annulus in neck constrictions at negative adsorption potentials of the plasmodesmata channel walls. Taking into account the presence of sphincters in the neck constrictions, our data suggest the role of plasmodesmata as a modulator of osmotic water fluxes in plants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Plasmodesmata as a Modulator of Osmotic Water Fluxes in Plants

Loading next page...
 
/lp/springer_journal/plasmodesmata-as-a-modulator-of-osmotic-water-fluxes-in-plants-aQMPCvKAhe
Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/A:1020201321121
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial