Polymorphism of Thermostable Proteins in Soft Wheat Seedlings during Low-Temperature Acclimation

Polymorphism of Thermostable Proteins in Soft Wheat Seedlings during Low-Temperature Acclimation The accumulation of thermostable stress proteins during hardening was studied in etiolated seedlings of spring (cvs. Rollo, Drott, Angara-86, and Tyumenskaya-80) and winter (moderately frost-resistant cv. Bezostaya-1 and highly frost-resistant cvs. Irkutskaya ozimaya and Zalarinka) wheat using one-dimensional SDS-PAGE. Hardening was performed at 4°C for nine days. Seedling tolerance to low subzero temperatures was estimated from electrolyte leakage and seedling survival after freezing. Hardening of all wheat genotypes tested resulted in the accumulation of thermostable cold-regulated (COR) polypeptides with mol wts of 209, 196, 169, 66, 50, and 41 kD. A densitometric analysis demonstrated a close correlation between the cultivar frost tolerance and the relative content of COR proteins, which evidently indicated the protective functions of the latter. These results led us to suggest that the level of specific protective agents, thermostable high-molecular-weight COR polypeptides in particular, determines the degree of plant frost resistance within a particular plant species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Polymorphism of Thermostable Proteins in Soft Wheat Seedlings during Low-Temperature Acclimation

Loading next page...
Kluwer Academic Publishers-Plenum Publishers
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Life Sciences; Plant Sciences
Publisher site
See Article on Publisher Site


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


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.



billed annually
Start Free Trial

14-day Free Trial