This Week in Microbiology

Latest Episodes:

TWiM #67: Black mushrooms and RNA thermosensors Oct 30, 2013

Show notes

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

TWiM #66: The shape of a container Oct 17, 2013

Show notes

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

TWiM #65: Leanness is transmissible Oct 03, 2013

Show notes

Hosts: Vincent Racaniello and Michelle Swanson.

Vincent and Michelle reveal how the human gut microbiota can modulate obesity in mice.

Links for this episode:

Gut microbiota modulate metabolism (Science)
Fighting obesity with bacteria (Science)
Letters read on TWiM 065

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.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 #64: URI and UTI at ICAAC in Denver Sep 18, 2013

Show notes

Vincent and Michael recorded this episode at the 53rd ICAAC in Denver, where they spoke with James Gern and James Johnson about rhinoviruses and extra-intestinal pathogenic E. coli.

TWiM #63: Superantigens, S. aureus, and the armpit microbiome Sep 04, 2013

Show notes

Vincent, Michael, and Michelle discuss how a Staphylococcus aureus superantigen is critical for pathogenesis in a rabbit model, and the relationship of body odor to the axilla microbiome.

TWiM #62: Breaking bad and protein chain mail Aug 21, 2013

Show notes

Vincent and Michael discuss how infection with influenza A virus disperses Streptococcus pneumoniae biofilms leading to disease, and an amazing protein chainmail in a viral capsid

TWiM #61: The irony of probiotics Aug 07, 2013

Show notes

Vincent, Elio, and Michele review how horizontal gene transfer from bacteria to an insect genome enables a tripartite nested mealybug symbiosis, and how probiotic bacteria work by competing for iron in the intestine.

TWiM #60: Microbial electrochemistry and diversity-generating retroelements Jul 24, 2013

Show notes

Vincent, Elio, and Michael discuss how an error-prone reverse transcriptase produces enormous diversity in a Legionella protein, and using microbes to convert waste into bioelectricity and chemicals.

TWiM #59: Are viruses part of our immune system? Jul 10, 2013

Show notes

Vincent and Michael discuss the finding that bacteriophage might be part of the mucosal antimicrobial defense system.

TWiM #58: The brain microbiome? Jun 20, 2013

Show notes

Vincent, Elio and Michael review how underground mycelial networks carry signals that warn neighboring plants of aphid attack, and the presence of bacteria in the human brain.

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