Scientists Explain the Mechanism of Plant's Constant GrowthJanuary 30, 2013
A research team from the University of Freiburg in Germany led by Prof. Dr. Thomas Laux has succeeded in confirming that plants need a micro-RNA at the tip of their shoots to prevent all of the stem cells from transforming themselves into other cell types. The Freiburg researchers used thale cress (Arabidopsis) as a model organism for their studies. Micro-RNAs are very small molecules of ribonucleic acid (RNA) that do not encode any proteins themselves but rather prevent proteins from being generated from other RNAs.
Scientists are already familiar with one micro-RNA that informs meristem cells that they should specialize. However, this micro-RNA needs to be neutralized in the area where stem cells need to be preserved. The research team was able to identify the second micro-RNA that serves precisely this function, thus preventing the stem cells from transforming.
The newly discovered micro-RNA, the stem cell preserver, is only produced in one particular cell layer, the epidermis of the tip of the shoot. The micro-RNA only reaches several underlying layers of cells near its home in the epidermis, all of which become stem cells. The more distant areas do not receive enough stem cell preservers, and the cells there transform themselves into other cell types. In this way, the plant can preserve the stem cells at the tip of its shoots and thus develop leaves, blossoms, or fruits regardless of environmental influences.
View the University of Freiburg's news release at http://www.pr.uni-freiburg.de/pm/2013/pm.2013-01-21.16-en?set_language=en.
Biotech Updates is a weekly newsletter of ISAAA, a not-for-profit organization. It is distributed for free to over 22,000 subscribers worldwide to inform them about the key developments in biosciences, especially in biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
See more articles:
News from Around the World
- Scientists Decode 90 Lines of Chickpea Genome
- Farmers in Burkina Faso Get Improved Cowpea Varieties from IITA
- South Africa Ratifies Nagoya Protocol
- Climate Change Likely to Cause Food Production Drop By 30% In Africa
- Ethiopian PM - Africa Needs to Increase Budget for Agriculture
- Scientists Discover Gene Responsible for C4 Photosynthesis
- Researchers Probe Soil Dwelling Bacteria that is Believed to Protect Crops
- Scientists Explain How Salt Impedes Plant Growth
- Study Reveals Epigenome Changes Control Tomato Ripening
- New Biotech Soybean Products Launched in North America
- IRRI Updates on its GM Rice Research
- University of Sydney Scientists Developing Heat Tolerant Crops
- DNA Demo and Biotech Lecture to Students in Bangladesh
- Information Exchange on Biotech Crops in Hanoi University of Agriculture
- Scientists Explain the Mechanism of Plant's Constant Growth
- Lactoferrin-expressing Tobacco Show Improved Phytopathogen Resistance
Beyond Crop Biotech
- New Synthetic Polymer Matches Rigidity of DNA
- New Issue of the Biofuels Supplement
- International Conference on Agriculture and Biotechnology
- World Biotechnology Congress 2013
Read the latest:
- Biotech Updates (March 22, 2023)
- Genome Editing Supplement (March 22, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: