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Rare genetic defect replicated in fish model
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Rare genetic defect can cause serious metabolic diseases in human
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IMAGE: Symbiotic sea anemone of the species Exaiptasia diaphana. Using this model system, cell biologists from Heidelberg University were able to demonstrate that intracellular symbioses between corals and microalgae of the. view more
Credit: Natascha Bechtoldt
Microalgae of the dinoflagellate group are known for their ability to survive in other animal cells. These tiny single-cell organisms have engaged in mutually beneficial relationships with corals since primeval times. By passing on critical nutrients to their hosts, dinoflagellates allow corals to thrive even in barren areas. A research team from the Centre for Organismal Studies (COS) of Heidelberg University recently discovered that such symbioses within the cell essentially depend on the ability of the algae to suppress the immune system of their host cell and thereby avoid being spit out again. At the same time, the researchers found indications that this cellular immune response is an evolutionari
Rice Plant Resists Arsenic
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Credit: Sheng-Kai Sun / Nature Communications
The agricultural cultivation of the staple food of rice harbours the risk of possible contamination with arsenic that can reach the grains following uptake by the roots. In their investigation of over 4,000 variants of rice, a Chinese-German research team under the direction of Prof. Dr Rüdiger Hell from the Centre for Organismal Studies (COS) of Heidelberg University and Prof. Dr Fang-Jie Zhao of Nanjing Agricultural University (China) discovered a plant variant that resists the toxin. Although the plants thrive in arsenic-contaminated fields, the grains contain far less arsenic than other rice plants. At the same time, this variant has an elevated content of the trace element selenium.