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This Week in Microbiology: Daily Summaries Delivered
by Vincent Racaniello
This Week in Microbiology 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.
Latest Episodes
The most recent episodes — sign up to get AI-powered summaries of each one.
- 4 days ago1h 7m
366: Our Vanishing Ancient Gut Microbes
TWiM explains a bacterial antiviral defense system that uses a noncoding RNA template to build tandem-repeat DNA through a mechanism that parallels how eukaryotic telomerase extends telomeres, and genome sequencing of the Tsimane of Bolivia and the Hadza of Tanzania which reveals over a thousand gut bacterial species shared between the two populations, many now vanishing from industrialized humans, suggesting they co-migrated with our ancestors out of Africa and into the Americas. Become a patron of TWiM. Links for this episode: Antiviral immunity via telomerase-like reverse transcription in bacteria <span style= "font-size: 12pt; font-family: Arial, sans-serif; color: #000000; background-color: transparent; font-weight: 400; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; font-variant-emoji: normal; te
- 2 weeks ago51 min
365: Bacteria Inside a Fungus Sabotage Plant Defenses
TWiM explains how bacterial endosymbionts enhance fungal virulence by disrupting the protective rhizobiome, and the development of rationally engineered Salmonella typhimurium strains with enhanced safety and antitumor efficacy. Become a patron of TWiM. Links for this episode: Plant, fungus, endosymbiont, and rhizobiome (PNAS) <span style= "font-size: 12pt; font-family: Arial, sans-serif; color: #000000; background-color: transparent; font-weight: 400; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-varia
- Sep 26, 202647 min
364: DNA Damage as Defense Against Bee Pathogens
TWiM wonders why archaea are not pathogenic, and reveals how a colibactin produced by a honeybee gut symbiont defends against pathogens. Become a patron of TWiM. Links for this episode: Why are archaea not pathogenic? (mBio) <p dir="ltr"
- Sep 12, 202658 min
363: Why Vegetables Are Good for Your Heart
TWiM the finding that Bunsen burners do not decrease deposition of microbe-containing particles, and how gut microbiota generate dinitrosyl iron complexes with cardiometabolic benefits. Become a patron of TWiM. Links for this episode: Bunsen burners don't do what you thought they did (Micro Spectrum) <span style= "font-size: 12pt; font-family: Arial, sans-serif; color: #1155cc; background-color: transparent; font-weight: 400; font-style: normal; font-variant-l
- Aug 29, 202651 min
362: When Gut Bacteria Share Chromosomes
TWiM explains how movement of DNA among gut bacteria drive large-scale genome mosaicism, and validation of a method for detection of Cyclospora cayetanensis in outbreak-linked fresh produce. Become a patron of TWiM. Links for this episode: Natural DNA transformation in the gut (ISME J) <li dir="ltr" style= "list-style-type: disc; font-size: 12pt; font-family: Arial, sans-serif; color: #000000; background-color: transparent; font-weight: 400; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; font-variant-emoji: normal; text-decoration: none; vertical-align: baseline; white-space: pre;" a
- Aug 14, 202653 min
361: Bacteria and Colon Cancer Recurrence
TWiM explains the discovery of avirulent bacterial signature associated with the development of recurrence following colorectal cancer surgery, and phage-derived proteins and conjugates that induce pilus detachment. Take the TWiM Survey
- Jul 31, 202656 min
Nitrogen Fixation Goes Eukaryotic
TWiM explains major implications of the link between plastic pollution and antimicrobial resistance, and the discovery of a new organelle, the nitrogen-fixing nitroplast. Hosts: Vincent Racaniello, Michael Schmidt, and Michele Swanson Become a patron of TWiM. Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Links for this episode Plastic pollution and antimicrobial resistance (Appl Envir Micro) The great Pacific garbage patch (YouTube) Rumen microbiome (Nat Biotech) Nitrogen-fixing organelle in marine alga (Science) This cell just changed biology (YouTube) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv
- Jul 18, 202648 min
359: Kin Killing and Metal Hunger
TWiM explains how cannibalism shapes biofilm structure and composition in Bacillus subtilis, and the importance of manganese uptake in uropathogenic E. coli during urinary tract infection. Become a patron of TWiM. Links for this episode: Cannibalism shapes biofilm structure (mBio) <span style= "font-size: 12pt; font-family: Roboto, sans-serif; color: #1155cc; background-color: transparent; font-weight: 400; font-style: normal; font-variant-ligatures: normal; font-vari
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About This Week in Microbiology
This Week in Microbiology 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.
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