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This Week in Microbiology

vincentThis Week in Microbiology (TWiM) is a podcast about unseen life on Earth hosted by Vincent Racaniello and friends. Following in the path of his successful shows 'This Week in Virology' (TWiV) and 'This Week in Parasitism' (TWiP), Racaniello and guests produce an informal yet informative conversation about microbes which is accessible to everyone, no matter what their science background.

As a science Professor at Columbia University, Racaniello has spent his academic career directing a research laboratory focused on viruses. His enthusiasm for teaching inspired him to reach beyond the classroom using new media. TWiM is for everyone who wants to learn about the science of microbiology in a casual way.

While there are no exams or pop quizzes, TWiM does encourage interaction with the audience via comments on specific episodes (below), vial email and voicemail at 908-312-0760. Listeners can also use MicrobeWorld to suggest topics for the show by submitting articles or papers to the site and tagging them with "TWiM". Each week Racaniello will view the tagged content and select items for discussion.

TWiM co-hosts include Elio SchaechterMichael Schmidt, and Michele Swanson.

Music used on TWiM is composed and performed by Ronald Jenkees and used with permission.

TWiM #75: Pellicles on pickle jars

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson

Vincent, Elio, Michael, and Michelle discuss a symbiosis between a bacterium and fungus that increases the virulence of oral biofilms, and the assembly of amyloid fibers, which are needed for biofilm formation.

rotting-teeth

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Right click to download TWiM#75 (59 MB .mp3, 81 minutes).
Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #74: It came from the Siberian permafrost

Hosts: Vincent RacanielloElio Schaechter, and Michael Schmidt

Vincent, Elio, and Michael discuss a huge 30,000 year old virus recovered from Siberia, and nested symbiosis facilitated by horizontal gene transfer from bacteria to insect. giant virus

Right click to download TWiM#74 (51 MB .mp3, 70 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #73: Eyeing root nodule development

Hosts: Vincent RacanielloMichael Schmidt and Michele Swanson

Vincent, Michael, and Michele discuss how soil-dwelling bacteria induce the formation of root nodules on legumes via a protein called CYCLOPS. Redon cyclops

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Right click to download TWiM#73 (57.5 MB .mp3, 80 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #72: The benefits of virulence

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson

Vincent, Elio, Michael, and Michele review how microbial virulence can be increased as a consequence of community surveillance and adaptation to macrophages.Mammalian Drosophila intestine

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Right click to download TWiM#72 (53 MB .mp3, 74 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #71: Colon cancer’s little shop of horrors

Vincent, Michael, and Michele explain how the gut microbiome modulates colon tumorigenesis, and regulation of intestinal macrophage function by the microbial metabolite butyrate. 

Hosts: Vincent RacanielloMichael Schmidt and Michele Swanson.

Butyric acid

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Right click to download TWiM#71 (57 MB .mp3, 78 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #70: A paroxysmal cough

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson

Vincent, Elio, Michael, and Michele discuss evidence that the acellular pertussis vaccine fails to prevent infection and transmission in nonhuman primates, and the use of bacterial cytological Pertussis world map by-wiki-Lokal Profilprofiling to identify pathways targeted by antibiotics.

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Right click to download TWiM#70 (53 MB .mp3, 73 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #69: Bacterial DNA in the human genome

Hosts: Vincent RacanielloElio SchaechterJo Handelsman and Michele Swanson

Vincent, Elio, Jo, and Michele review evidence for bacterial DNA integrated into the human genome, and control of the symbiont population in an insect midgut. 

acinetobacter

 

 

 

 

 

 

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Right click to download TWiM #69 (51 MB .mp3, 71 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #68: The fungus among us

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Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson.

Vincent, Elio, Michael, and Michele discuss the amazingly high level of intergenera gene exchange among haloarchaea in an Antarctic lake, and the diversity of fungi on residential surfaces and the human forehead. tested surfaces

Right click to download TWiM #68 (51 MB .mp3, 71 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #67: Black mushrooms and RNA thermosensors

Hosts: Vincent RacanielloElio Schaechter, and Michael Schmidt.

Vincent, Elio, and Michael discuss how temperature triggers Neisseria menigitidis immune evasion, and protection of mice from ionizing radiation by feeding them black mushrooms.auricularia auricula-judae 

Right click to download TWiM #67 (55 MB .mp3, 75.5 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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 #66: The shape of a container

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Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson.

Vincent, Elio, Michael, and Michele discuss the curious outer membrane vesicles of Neisseria meningitidis, and sources of Clostridium difficile infection revealed by genome sequencing.

outer membrane vesicles

Right click to download TWiM #66 (50 MB .mp3, 68 minutes).

Subscribe to TWiM (free) on iTunes, 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 This email address is being protected from spambots. You need JavaScript enabled to view it. , 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.

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