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“剧毒”沙门氏菌——毒性增7倍这种能够引起人和动物食物中毒的细菌分别借助“亚特兰蒂斯”号和“奋进”号,于2006年和2008年两次被带上太空。令人惊讶的是,这种细菌在太空更显“毒辣”本色,比在地球上的毒性增强了3到7倍。在太空中放置12天后,沙门氏菌被注入老鼠体内,只有10%的老鼠活下来,而在地球上进行类似实验,有40%的老鼠幸存。科学家发现,“太空沙门氏菌”的DNA中有167个基因和73个蛋白质产生了变化。基于此,一家美国的生物公司,开发出一种沙门氏菌疫苗。
“Toxic” Salmonella - 7 times more toxic This bacteria can cause food poisoning in humans and animals with “Atlantis” and “Endeavor”, respectively, in 2006 and 2008 Bring it to space twice. Surprisingly, this bacterium is even more “poisonous” in space, three to seven times more toxic than it is on Earth. After 12 days in space, Salmonella was infused into mice and only 10% of mice survived while similar experiments were performed on Earth, with 40% of mice surviving. Scientists have found that 167 genes and 73 proteins have changed in the DNA of “space-borne Salmonella”. Based on this, a U.S. biotechnology company developed a Salmonella vaccine.