18 months after the controversy started, it’s become official that the arsenic-tolerant bacterium, GFAJ-1, found in California’s Mono Lake, cannot live without phosphorous. It was reported in 2010 by a group led by Felisa Wolfe-Simon, a microbiologist, now working at the Lawrence Berkeley National Laboratory, in the journal Science that the Halomonadaceae bacterium GFAJ-1 could include some atoms of arsenic instead of phosphorous in hits crucial biochemicals.
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