D. Radiodurans
Ryan Mitchell
Deinococcus radiodurans: Its Only Weakness is CO2
Listed in the Guinness Book of World Records as “the world’s toughest bacteria,” Deinococcus radiodurans is known to be able to withstand a thousand times more radiation than a human, making it the most radiation-resistant organism known to man. Its name means ‘strange berry that withstands radiation’ and was discovered by Arthur W. Anderson at Oregon Agricultural Experiment Station in Corvallis fifty years ago in a can of spoiled ground meat that was originally sterilized by radiation. What makes this remarkable bacterium so resistant to radiation is its efficient ability to repair its own DNA after having it split into many pieces by intense exposure to radiation, restoring it to its original state in as little time as a few hours. This is due to an unusual trait in which the organism has four circular chromosomal loops allowing the genes to be stacked next to each other, so in occasion when it DNA is......
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