Seasonal changes in the content of photosynthetic pigments in perennial grasses of cryolithic zone

Seasonal changes in the content of photosynthetic pigments in perennial grasses of cryolithic zone Seasonal changes in the content of photosynthetic pigments and their ratio were studied in perennial gramineous (Psathyrostachys juncea Tzvel., Elymus sibiricus L., Bromopsis inermis Leys) and equisetaceous (Equisetum variegatum Schleich. ex Web., E. scirpoides Michx.) plants grown under conditions of cryolithic zone in Central and North-East Yakutia (the Pole of Cold). Simultaneously with growth in chlorophyll (Chl) content in all the studied species of perennial grasses of Central Yakutia, a considerable increase in the content of carotenoids (Car) of the xanthophyll cycle (XC) pigments was observed with the beginning of autumn temperature fall. Similar dependence was found in horsetails of the Pole of Cold region: the content of Car was increased by 1.2–3.0 times comparing to the summer values, whereas at the same time the concentration of oxygen-containing forms increased and the ratio of Chl to xanthophylls and Car decreased. In general, horsetails had typically a lower content of Chl and Car, which was determined not only by extremely harsh climatic conditions of the region but also by specific characteristics of Equisetaceae plants. Closer to winter time, the formation of secondary Car, rhodoxanthin, was also observed in the studied horsetail species. In this case, rhodoxanthin presumably plays more important antioxidant role than XC, which can not operate at constantly low temperatures. The obtained data suggest that one of the characteristics of cold hardening of perennial grasses under conditions of cryolithic zone of Yakutia is, presumably, the high level of primary, as well as secondary, Car with most profound antioxidant properties. Russian Journal of Plant Physiology Springer Journals

Seasonal changes in the content of photosynthetic pigments in perennial grasses of cryolithic zone

Loading next page...
SP MAIK Nauka/Interperiodica
Copyright © 2010 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