The scientific community has been very busy debating over a controversial issue surrounding a bacterium from California.
It all started when NASA astrobiology fellow Dr. Felisa Wolfe-Simon and her team published a research article in Science in December 2010. Wolfe-Simon and colleagues have isolated a strain of bacterium called GFAJ-1 from arsenic-rich Mono Lake, California. In the paper, the authors reported that this GFAJ-1 can grow in arsenic cultures without phosphorus. Furthermore, they announced that the bacterium can incorporate arsenic into essential biomolecues, including DNA and proteins. Continue reading –>