Light trophic and signal roles in the control of morphogenesis of the Brassica plants developing storage roots

Light trophic and signal roles in the control of morphogenesis of the Brassica plants developing... Growth responses to different light conditions of the plants from the genus Brassica L. characterized by storage root formation, namely tuberous rooted mustard Brassica napiformis Bailey and field mustard B. rapa L. subsp. japonica Scheb. were studied. In treatments with equal daily light integral of 13.9 mol/m2, storage root formation by both genotypes started earlier under long-day conditions. A sensitivity to photoperiodic signals was firstly manifested by lateral meristems ensuring storage root formation and only later, by the shoot apical meristem. Primary manifestations of the shade-avoidance response in the cenosis was also related to the earlier formation of the storage root along with more active growth of other organs. Plant adaptation to low light involved structural and functional rearrangements providing first of all a relative increase in the lightharvesting leaf surface at more economical consumption of assimilates for their growth due to both a decrease in the specific leaf weight and an increase in the photosynthetic pigment content. For normal photosynthesis and growth occurrence, both species require a relatively low light amount. In B. rapa, daily requirement in incident radiation did not exceed 10 mol/m2. For B. napiformis, it was somewhat higher: storage root formation did not occur at a relatively low daily light integral (9.3 mol/m2), and this is one of the examples of multifaceted morphology during plant development. Russian Journal of Plant Physiology Springer Journals

Light trophic and signal roles in the control of morphogenesis of the Brassica plants developing storage roots

Loading next page...
SP MAIK Nauka/Interperiodica
Copyright © 2009 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