US: Salmonella sent to space on shuttle returned home far deadlier: scientists - (CNews)
September 24, 2007 – 8:24 pmToronto — Bacteria that was sent into space on the shuttle came back to Earth genetically altered and significantly deadlier.
The story explains that Salmonella, the bacterium that causes food poisoning, was sent in special test tubes as a payload on the space shuttle Atlantis in September 2006. When it returned, scientists found the bugs were three times more deadly to laboratory mice than the same germs grown in identical containers and at the same temperature and humidity as on the spacecraft.
Researcher James Wilson, lead author of a report on the phenomenon in Tuesday’s edition of the Proceedings of the National Academy of Sciences, was cited as saying the bacteria grown in space showed altered protein production arising from 167 of their estimated 4,000 genes, which made them far more virulent than their Earth-bound counterparts.
After the shuttle touched down on terra firma 12 days later, the researchers gave lab mice varying […]
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