Effect of common sage plant treatment with polyamines on the contents of proline and free and conjugated polyamines under oxidative stress

Effect of common sage plant treatment with polyamines on the contents of proline and free and... Common sage (Salvia officinalis L.) plants grown in water culture to the stage of 4–5 true leaves were treated with paraquat (PQ) ( 1 ml of the solution containing 0.1 μM PQ in 0.05% Tween 80), putrescine (Put), spermidine (Spd), or Spermine (Spm) (all polyamines (PA) at the concentration of 0.5 mM in 0.05% Tween 80) or PA plus PQ for 6, 12, 24, 36, or 48 h. Under normal conditions, treatment with individual PA did not induce any changes in the content of free proline. Under oxidative stress induced by PQ, oxidation of proline and free PA by ROS resulted in their spending and demanded restoration of free PA due to hydrolysis of their insoluble conjugates. As distinct from treatment with PQ only, its combination with PA in the light was accompanied by proline accumulation. Treatment with Put plus PQ induced accumulation of intracellular Put and its soluble and insoluble conjugates. Treatments with Spd and Spm in combination with PQ resulted similarly in the increase in the levels of their intracellular soluble and insoluble conjugates. In treatments with these high-molecular PA, polyamine oxidase was activated and diaminopropan formation was observed. It seems likely that, for restoration of high-molecular PA homeostasis, their degradation by polyamine oxidase or production of insoluble conjugates is induced. Thus, the amount of free and conjugated particular PA is under strict control and is maintained at a definite level. A decrease in the content of a particular free PA induces primarily a decrease in the content of its soluble and then insoluble conjugates. The data obtained demonstrate the effects of exogenous PA on the content of intracellular proline under oxidative stress but do not allow a conclusion about direct regulation of its content by PA. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Effect of common sage plant treatment with polyamines on the contents of proline and free and conjugated polyamines under oxidative stress

Loading next page...
SP MAIK Nauka/Interperiodica
Copyright © 2011 by Pleiades Publishing, Ltd.
Life Sciences; Plant Physiology; 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