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PODCAST

This Week in Microbiology

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.

science life sciences

All Episodes

56:32

303: Can Our Microbiome Break Our Hearts?

This Week in Microbiology ·

2024/02/03

TWiM reveals a database of genome sequences of thousands of Mycobaterium tuberculosis, allowing association with resistance phenotypes to 13 antibiotics, and microbe-derived uremic solutes that enhance thrombosis potential in the host. Hosts: Vincent Racaniello, Michael Schmidt, and Michele Swanson. Become a patron of TWiM. Links for this episode M. tuberculosis genomes and antimicrobial resistance (PLoS Biol) The CRyPTIC consortium BashTheBug Zooniverse Microbial solutes enhance thrombosis (mBio)

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54:33

302: Itching and Scratching and New Antibiotics

This Week in Microbiology ·

2024/01/20

TWiM describes the mechanism for the S. aureus itch and scratch induced skin damage, and discovery of a novel class of antibiotics that targets the lipopolysaccharide transporter. Become a patron of TWiM. Links: S. aureus drives itch and scratch behavior (Cell) Staph scratches its itch (Cell) A new class of antibiotics (Nature) A new type of antibiotic (Nature) Novel antibiotic targets LPS transporter (Nature) New antibiotic traps LPS (Nature)

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47:18

301: Another Year is Microbial

This Week in Microbiology ·

2024/01/03

A highly reduced TWiM team presents a study of the use of phage diversity in cell-free DNA to identify bacterial pathogens in human sepsis cases, and the evolution, persistence, and host adaptation of a gonococcal antimicrobial resistance plasmid that emerged in the pre-antibiotic era. Hosts: Vincent Racaniello and Petra Levin Become a patron of TWiM. Links for this episode Phages identify sepsis pathogens (Nat Micro) Gonococcal AMR plasmid from pre-antibiotic era (PLoS Genetics) Take the TWiM

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39:30

300: Marvels of Microbiology

This Week in Microbiology ·

2023/12/16

On the occasion of TWiM’s 300th episode, we discuss how two college students found a new antibiotic in soil, Barbara Iglewski’s passing, and Elio returns for an appearance. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson. Guest: Elio Schaechter Become a patron of TWiM. Links for this episode Barbara Iglewski dies Antimicrobial activity of P. nicotinovorans (MicroPubl Biol) 2 NWTC students found a new antibiotic in soil (Green Bay Press Gazette) ESKAPE bacteria group

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51:24

299: Teaching with TWiM

This Week in Microbiology ·

2023/12/02

From ASM’s Conference for Undergraduate Educators 2023 in Phoenix, TWiM speaks with Amaya Garcia Costas and Gwendolyn Knapp about their approaches to undergraduate microbiology education, and how they use TWiM as part of their curricula. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson. Guest: Amaya Garcia Costas and Gwendolyn Knapp. Become a patron of TWiM. Links for this episode ASMCUE 2023 Teaching in the time of COVID-19 (J Microbiol Biol Edu) Take the TWiM Listener

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59:47

298: Impact of Lung Microbiome and Racial Disparities...

This Week in Microbiology ·

2023/11/16

TWiM provides thoughts on providing better training for a non-academic career, and help celebrate Black in Microbiology Week with a 2023 paper by Ari Kozik, a co-founder of Black Microbiologists Association and Assistant Professor at the University of Michigan Hosts: Vincent Racaniello, Michael Schmidt, Michele Swanson, Petra Levin, Become a patron of TWiM. Links for this episode Better training for a non-academic career (Nat Micro) Nature career site ASM career site Prosper - Unlocking postdoc

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59:27

297: Bacterial-electronic Sensor Pill

This Week in Microbiology ·

2023/11/04

TWiM reviews how a coating of lipoproteins provides a stabilizing environment on the inner membrane of Bacillus subtilis spores, and a miniaturized device that integrates genetically engineered probiotic biosensors with a custom-designed photodetector and readout chip to track mediators of inflammation in the gastrointestinal tract Hosts: Vincent Racaniello, Michael Schmidt, and Petra Levin, Subscribe to TWiM (free) on Apple Podcasts, Spotify, Google Podcasts, Android, RSS, or by email. Become a

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47:02

296: Bacterial Channels in Plant Cells

This Week in Microbiology ·

2023/10/07

TWiM discusses a dispute about whether the mycobiome plays a role in the development of cancer, and the structure and function of channels that are delivered to plant cells by pathogenic bacteria. Hosts: Vincent Racaniello, and Michael Schmidt. Become a patron of TWiM. Links for this episode Cancer microbes disputed (Carl Zimmer) Fungal mycobiome and cancer (Nature) Revisiting fungal mycobiome and cancer (Nature) Bacteria deliver channels to plant cells (Nature) Ice nucleation by bacteria (YouTube)

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01:06:48

295: Uncultured and Unmutable

This Week in Microbiology ·

2023/09/22

TWiM explains how phages avoid tRNA-targeting host defenses, and discovery of a new antibiotic from an uncultured bacterium that binds to an immutable target. Hosts: Vincent Racaniello, Michael Schmidt, and Petra Levin, Become a patron of TWiM. Links for this episode Phages avoid tRNA-targeting host defenses (eLife) Sea phages Actinobacteriophage database New antibiotic from uncultured bacterium (bioRxiv) The age of infection (For Policy) Killing bacteria by teixobactin (Nature) Take the TWiM

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52:37

294: You’ll Scream After Ice Cream

This Week in Microbiology ·

2023/09/08

TWiM reveals that the ice cream manufacturing environment harbors psychrotrophic bacteria, and identification of a deadly bacterial strain causing widespread deaths of newborns in Uganda. Hosts: Vincent Racaniello, Michael Schmidt, & Michele Swanson. Become a patron of TWiM. Links for this episode Pyschrotrophic bacteria in ice cream plants (Appl Environ Micro) Creamery pays fine for contaminated ice cream (US DOJ) Paenibacillus infection of infants in Uganda (The Lancet) Deadly bacterial strain

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01:09:49

293: Aerosol phage therapy, alpha-gal aptamers for MRSA

This Week in Microbiology ·

2023/08/23

TWiM explains personalized aerosilized phage therapy for a chronic lung infection, and using the combination of antibiotic and a DNA molecule that binds alpha-gal to reduce S. aureus infection in vivo. Hosts: Vincent Racaniello and Michael Schmidt Subscribe to TWiM (free) on Apple Podcasts, Google Podcasts, Stitcher, Android, RSS, or by email. Become a Patron of TWiM! Links for this episode: Aerosolized phage therapy (Nat Comm) Alpha-gal aptamer and vancomycin for MRSA (Microorg)

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58:47

292: Breast Milk Bioactives

This Week in Microbiology ·

2023/08/11

TWiM reveals that breast milk bioactives are essential for development of the infant microbiome and immunity, and how capsule mutants of Klebsiella pneumoniae can affect bacterial pathogenesis. Hosts: Vincent Racaniello, Michael Schmidt, Michele Swanson, Petra Levin, Become a patron of TWiM. Links for this episode Diet-microbe-host interaction in early life (Science) Human Milk: An Ideal Food (Front Ped) Determinants of Diabetes in the Young (Ann NY Acad Sci) Gut microbiome in early childhood

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01:01:11

291: Biogeography of Tectonics and Teeth

This Week in Microbiology ·

2023/07/29

TWiM explains how photoferrotrophic bacteria initiated plate tectonics over 2500 million years ago, and how two bacteria work together to cause childhood tooth decay. Hosts: Vincent Racaniello, Michael Schmidt, Michele Swanson, Petra Levin, Guest: Mark O. Martin Subscribe to TWiM (free) on Apple Podcasts, Spotify, Google Podcasts, Android, RSS, or by email. Become a patron of TWiM. Links for this episode Bacteria initiated plate tectonics (Geophys Res Lett) Medea hypothesis (Sci Am) Earth’s

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47:03

290: Houston, We Have Mimi Goldschmidt

This Week in Microbiology ·

2023/07/14

From ASM Microbe 2023 in Houston, TWiM speaks with Mimi Goldschmidt about her remarkable career in microbiology which included training astronauts to safely bring moon rocks back to Earth. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin. Guest: Mimi Goldschmidt Become a patron of TWiM. Links for this episode Mimi Goldschmidt (Wikipedia) Dr. Millicent “Mimi” Goldschmidt - Women in Microbiology (YouTube) Take the TWiM Listener survey! Music used on TWiM is by Ronald Jenkees Send your

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57:35

289: Viral Defense and Counter-Defense

This Week in Microbiology ·

2023/06/30

TWiM highlights viral defense and counter-defense: cGAS mediated ubiquitination to counter infection, and viral sponges that sequester nucleotide signals to inactivate immunity. Hosts: Vincent Racaniello, Michael Schmidt, Michele Swanson, Petra Levin. Become a patron of TWiM. Links for this episode Ubiquitin-like conjugation by bacterial cGAS (Nature) Jumpin’ Jack Flash (TWiV 222) Viral sponges inactivate anti-phage immunity (Trends Micro) cGAS and CD-NTase enzymes (Curr Opin Struct Biol) Take the

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01:06:49

288: Cancer and E. coli

This Week in Microbiology ·

2023/06/09

TWiM describes a potential connection between a bacterial protein that damages DNA, and human cancers, and how to synthesize antimicrobial natural products from reconstructed bacterial genomes of the Middle and Upper Paleolithic. Hosts: Vincent Racaniello, Michael Schmidt, Michele Swanson, and Petra Levin Become a patron of TWiM Links for this episode Colorectal cancer and E. coli (Nature) Natural products from ancient bacterial genomes (Science) Underexplored bacteria reservoirs of antimicrobial

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51:29

287: When Replicas Do Not Replicate

This Week in Microbiology ·

2023/05/20

TWiM investigates the high variability in the rate and amount of current production from microbial fuel cells, and how bacteria link their growth rate to external nutrient conditions via a protein that functions as a cellular rheostat. Hosts: Vincent Racaniello, Michael Schmidt, and Petra Levin Subscribe to TWiM (free) on Apple Podcasts, Spotify, Google Podcasts, Android, RSS, or by email. Become a patron of TWiM. Links for this episode Variability in microbial fuel cells (Appl Environ Micro)

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52:46

286: Integrons and Invasion

This Week in Microbiology ·

2023/05/05

TWiM reveals environmental integrons, bacterial genetic elements notorious for their role in spreading antibiotic resistance, and how Salmonella invasion is controlled by competition among intestinal chemical signals. Hosts: Vincent Racaniello, Michael Schmidt, and Michele Swanson. Become a patron of TWiM. Links for this episode Environmental integrons (Trends Micro) Integrons: agents of bacterial evolution (Nat Rev Micro) Rethinking microbial infallibility in the metagenomics era (Fems Micro

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01:11:16

285: How Plague Got Deadly

This Week in Microbiology ·

2023/04/23

TWiM reveals a new type of satellite virus that requires only phage tails for producing infectious virus particles, and that highly virulent plague bacteria differs from its innocuous enteric predecessor by its resistance to lysis by human complement. Hosts: Vincent Racaniello and Michael Schmidt. Subscribe to TWiM (free) on Apple Podcasts, Spotify, Google Podcasts, Android, RSS, or by email. Become a patron of TWiM. Links for this episode Viruses that steal bacteriophage tails (Cell Host Microbe)

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55:09

284: Flies, Pigs, and Squid

This Week in Microbiology ·

2023/04/08

TWiM reveals housefly dispersal of antimicrobial resistant bacteria, and a reproductive organ in squid linked to symbiotic bacteria. Become a patron of TWiM Links for this episode Housefly dispersal of antimicrobial resistant E. coli (Appl Micro Int) Antibiotic use in farming (Nature) Antimicrobial use in food producing animals (PLoS Glob Pub Health) Reproductive organ linked to symbiotic bacteria (mBio) Skype a Scientist Take the TWiM Listener survey! Music used on TWiM is composed and

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344 results

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