A new gene shown to be essential for pollen production in flowering plants has been discovered by scientists at Penn State University. A paper describing the team’s discovery of the gene, whose activity they found is necessary for the formation of cells required for pollen production, will be published in the 1 August 2002 issue of the journal Genes and Development.
"This research is the first indication that a specific kind of protein known as a receptor-linked protein kinase, which results from the gene, is important for pollen production in the anther - the male reproductive organ in flowers," says Hong Ma, professor of biology and the leader of the research team that made the discovery. "Plant breeders eventually may be able to use this information to control pollination in important agricultural crops such as wheat, rice, and soybeans, where such control previously has not been feasible."
To identify the gene, the team worked with the Arabidopsis weed--a plant widely used in research laboratories and one of the few whose DNA has been so thoroughly studied that scientists know the order, or sequence, of essentially all its component nucleotide compounds, which make up the plant’s genome. Although they have completely sequenced its genome, scientists are just beginning the process of discovering the function of the plant’s 25,000 or so individual genes--the various groups of nucleotides strung end to end along its DNA.
Barbara K. Kennedy | EurekAlert!
Cryo-electron microscopy achieves unprecedented resolution using new computational methods
24.03.2017 | DOE/Lawrence Berkeley National Laboratory
How cheetahs stay fit and healthy
24.03.2017 | Forschungsverbund Berlin e.V.
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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24.03.2017 | Physics and Astronomy