Scientists have discovered a gene that allows plants to grow better in low nutrient conditions and even enhance their growth through sodium uptake, according to a report published online this week in The EMBO Journal.
Salty soil caused by irrigation practices in arid regions has become a major agricultural problem – not only in India, China and African countries, but also around the Mediterranean and in dry regions of the USA, such as California. This is only expected to get worse in forthcoming years, as climate change leads to desertification.
Julian Schroeder and coworkers investigated a sodium transporter called OsHKT2;1 in the roots of rice plants. Their results provide evidence that this transporter has capabilities previously thought to exist but not genetically validated in plants before. Under salt stress, when sodium levels are too high, OsHKT2;1 transport is quickly shut off, protecting the plant from accumulating too much sodium before it can become toxic.
In addition, the authors found that sodium can also have beneficial effects under nutrient poor conditions. On soils where little nutritional potassium is available, a common problem after many years of agricultural production, plants can take up sodium through the OsHKT2;1 transporter to replace some of the functions of potassium and actually enhance growth. This improvement of our understanding of how plants regulate salt uptake in their roots may help to eventually find a solution to reducing the impact of soil salinity on agricultural productivity.
Julian Schroeder | EurekAlert!
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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.
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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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