TWiM 32: Not the shadow biosphere

On episode #32 of the science show This Week in Microbiology, Vincent, Elio and Michael speak with Rosie Redfield about her evidence that a bacterium cannot grow on arsenic instead of phosphorus.

If you only listen to one episode of TWiM all year, make it this one – Rosie is terrific!

You can find TWiM #32 at microbeworld.org/twim.

TWiM #18: Escherichia coli K-12, an emerging pathogen?

This Week in MicrobiologyHosts: Vincent Racaniello, Michael SchmidtStanley Maloy and Elio Schaechter.

On episode #18 of the podcast This Week in MicrobiologyVincent, 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.

Click the arrow above to play, or right-click to download TWiM #18 (54 MB, .mp3, 74 minutes).

Subscribe to TWiM (free) on iTunesZune Marketplace, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@microbe.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

TWiM 5: Mercury-methylating Desulfovibrio and antimicrobial nanoparticles

desulfovibrio biofilmHosts: Vincent Racaniello, Cliff Mintz, Michael Schmidt, and Ronald Atlas.

Vincent, Cliff, Michael and Ron discuss the genome sequqnce of a mercury-methylating bacterium and the antimicrobial effects of nanoparticles.

Click the arrow above to play, or right click to download TWiM #5 (52.5 MB .mp3, 76 minutes).

Subscribe to TWiM (free) on iTunesZune Marketplace, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Image of Biofilm of Desulfovibrio desulfuricans by PNNL – Pacific Northwest National Laboratory via flickr

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@microbe.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.