Ferredoxin-Dependent Photosynthetic Electron Transport and Coupled Processes of Energy Storage in Chloroplasts of Wheat Plants Grown under Different Levels of Nitrogen Supply

Ferredoxin-Dependent Photosynthetic Electron Transport and Coupled Processes of Energy Storage in... The rates of electron transfer in the presence of natural cofactors, ferredoxin and NADP, which were added in the amounts catalyzing noncyclic or cyclic electron transfer, were studied in thylakoids isolated from 17-day-old wheat seedlings. Upon excitation of both photosystems (PS) of photosynthesis, the potential rate of NADP reduction in thylakoids isolated from plants grown on nitrogen-free nutrient solution did not differ from that in thylakoids from the control plants. However, the P/2e ratio was significantly lower in thylakoids isolated from nitrogen-deficient plants. On the contrary, in the presence of DCMU, the rate of PSI-driven electron transfer from an artificial donor to NADP was considerably higher in these than in the control thylakoids. In the presence of ferredoxin under anaerobic conditions, the rate of phosphorylation coupled to cyclic electron transport was also significantly higher in thylakoids isolated from nitrogen-deficient plants, than in thylakoids isolated from control plants. Our data show that PSI-driven electron transport and cyclic photophosphorylation are activated in nitrogen-starved wheat plants, at least at the initial stages of starvation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Ferredoxin-Dependent Photosynthetic Electron Transport and Coupled Processes of Energy Storage in Chloroplasts of Wheat Plants Grown under Different Levels of Nitrogen Supply

Loading next page...
 
/lp/springer_journal/ferredoxin-dependent-photosynthetic-electron-transport-and-coupled-TsUqmxoesC
Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/A:1016614416706
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