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Found the protein which governs arsenic absorption Markus Tamas, a researcher at the Institute for Cell and Molecular Biology at the University of Gothenburg, together with Danish colleagues, has found the proteins responsible for arsenic absorption in plants. The discovery, which has been published in the scientific journal BMC Biology, opens up the possibility of reducing or preventing the absorption of arsenic by plants by using gene technology. This could lead to varieties of rice being bred where the rice does not absorb arsenic even if it is irrigated with poisoned water. "Using gene technology, we can either deactivate the proteins, or manipulate them so that the plants secrete the arsenic absorbed. By limiting the absorption and storage of arsenic in the rice, we should at least partly be able to reduce arsenic poisoning in humans by reducing how much of it comes from the food chain," says Markus Tamas, senior lecturer in Microbiology. Attempts to develop rice varieties which absorb less arsenic are underway already, but this discovery of the particular proteins involved may lead to these developments accelerating. "But even though we are happy to have identified the proteins, our goal is still a long way off," says Markus Tamas.
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