Bacterium grows with arsenic
Microbe uses toxic element instead of phosphorus
By Rachel Ehrenberg, 12:40 PM December 2, 2010
When cooking up the stuff of life, you can’t just substitute margarine for butter. Or so scientists thought.
But now researchers have coaxed a microbe to build itself with arsenic in the place of phosphorus, an unprecedented substitution of one of the six essential ingredients of life. The bacterium appears to have incorporated a form of arsenic into its cellular machinery, and even its DNA, scientists report online December 2 in Science.
Arsenic is toxic and is thought to be too chemicall...
Source URL: https://www.sciencenews.org/article/bacterium-grows-arsenic