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A new study might have bad news for future space travelers. Madhan Tirumalai, Post Doctoral Fellow at the University of Houston and part of the NASA Astrobiology Institute, has discovered that bacteria mutate and proliferate in space-like conditions. As part of the most rigorous study to date, he observed E. coli development over 1,000 generations in a rotating container designed to simulate microgravity.
He found that the bacteria developed 16 mutations, and when they were placed next to normal E. coli cells, they grew around three times as many colonies and maintained a 72 percent adaptive advantage. Further, their adaptations remained even when researchers tried to erase them.
Changes - Mutations - Genes - Production - Cells
Some of the changes were slightly worrying: mutations affected the genes related to biofilm production, which often makes cells more robust and virulent. However, not every mutation necessitates a negative change. In fact, as Tirumalai wrote, the E. coli was still susceptible to antibiotics. Essentially, even if microgravity turns bacteria into superbugs, we can still rely on antibiotics.
This could be worrying news for future space-travelers. E. coli is a relatively benign bacteria,...
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