Listed in the Guinness Book of World Records as "the world's toughest bacterium," Deinococcus radiodurans can withstand extreme temperatures and drought conditions, lack of nutrients and a thousand times more radiation than a human being.
A new study by Cornell researchers reveals that nitric oxide -- a gas molecule used in many metabolic processes in animals and a pollutant in the atmosphere that leads to smog -- plays a key role in D. radiodurans' recovery when exposed to ultraviolet radiation (UV). Full Story