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…

On episode #18 of the podcast This Week in Microbiology, Vincent, Michael, Elio, and Stanley explain how to make the human intestinal commensal and benign laboratory bacterium Escherichia coli K-12 into an invasive organism, and the unearthing of century-old spores in New York City.

On episode #10 of the podcast This Week in Microbiology, Vincent, Margaret, Elio, Michael and Dickson discuss the symbiosis between the Hawaiian bobtail squid and the luminous, gram-negative bacterium Vibrio fischeri.