Hosts: Vincent Racaniello, Michael Schmidt, Elio Schaechter, and Rosie Redfield.
Vincent, Elio and Michael speak with Rosie Redfield about her evidence that a bacterium cannot grow on arsenic instead of phosphorus. 
Right click to download TWiM #32 (49 MB, .mp3, 67 minutes).
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Links for this episode:
- Bacterium growing on arsenic instead of phosphorus (Science)
- Comment on arsenic bacterium paper (Science)
- Absence of arsenate manuscript (arXiv)
- Rosie Redfield’s blog
- Theory and measurement of bacterial growth (pdf)
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