Methodological approaches for studying apoplastic redox activity: 2. Regulation of peroxidase activity

Methodological approaches for studying apoplastic redox activity: 2. Regulation of peroxidase... This work is devoted to the study of mechanisms of substrate regulation of extracellular peroxidase (ECPOX) activity at a distant stress (wounding) signal transmission from aboveground organ (leaf) of wheat (Triticum aestivum L., cv. Kazanskaya Yubileinaya) seedlings to the roots. Along with the high dianizidine peroxidase activity, the extracellular solution manifested 3,4-dihydrooxi-L-phenylalanine peroxidase, ascorbate peroxidase, and catalase activities. Dianizidine peroxidases were represented by several isoforms and had broad substrate specificity. It was found that ECPOX was released from the roots into the growing solution and its activity in the solution increased with root growth. Excision of the apical leaf parts in seedlings induced a sharp activation of root ECPOX in the growing solution. The interaction between ECPOX substrates at oxidation in two- and three-component systems is demonstrated. The role of ECPOX in the control of ROS balance in the plant cell apoplast might be determined by competitive and complementary interactions between different peroxidase substrates. Such substrate-substrate regulation of peroxidase activities may be important for stress-induced oxidative burst in plant cells. Russian Journal of Plant Physiology Springer Journals

Methodological approaches for studying apoplastic redox activity: 2. Regulation of peroxidase activity

Loading next page...
Pleiades Publishing
Copyright © 2014 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