Barley plant response to cadmium action as dependent on plant age

Barley plant response to cadmium action as dependent on plant age Age-dependent differences in the responses of 3-day-old (the phase of seed germination) and 7-day-old (the phase of seedlings) of barley (Hordeum vulgare L., cv. Zazerskii 85) plants to treatment with cadmium (100 μM). Four-day-long exposure to the cadmium solution retarded root growth and suppression of the photosynthetic apparatus in germinating seeds, whereas in seedlings, the roots continued to grow actively and parameters characterizing functioning of the photosynthetic apparatus were close to control values. In the presence of cadmium, in the roots of plants the level of HvPCS gene encoding phytochelatin synthase and the content of phytochelatins (PC) increased independently of the plant age. Distinctly, changes in the content of reduced glutathione (GSH) depended on the plant age: in 3-day-old seedlings the content of GSH reduced after 40-day-long exposure to cadmium; in contrast, in 7-day-old plants, it increased. We concluded that differences in the tolerance to cadmium of plants differing in age are related to their anatomic, morphological, physiological, and biochemical properties corresponding to particular developmental stages and also to differences in functioning of different mechanisms of metal detoxification, in particular, to activation of GSH synthesis and a great increase in the content of PC in the older plants. Russian Journal of Plant Physiology Springer Journals

Barley plant response to cadmium action as dependent on plant age

Loading next page...
SP MAIK Nauka/Interperiodica
Copyright © 2012 by Pleiades Publishing, Ltd.
Life Sciences; Plant Sciences; Plant Physiology
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