This Week In Microbiology

Vincent Racaniello, Michael Schmidt, Michele Swanson and Elio Schaechter How a bacterium helps dengue virus replicate in the mosquito gut, and minicells as a damage disposal mechanism in E. coli. Become a patron of TWiM. Links: Please take the TWiM listener survey Bacteria help dengue virus in mosquito gut (Cell Host Micr) Fungus helps dengue virus in mosquito gut (TWiV 479) Minicells for disposal of damaged goods (mSphere) TWiM Listener survey Subscribe to TWiM (free) on iTunes, Google Podcasts, Stitcher, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a Patron of TWiM! Send your microbiology questions and comments to twim@microbe.tv

The TWiM team explore how Lactobacillus reuteri can rescue social deficits in three mouse models of autism spectrum disorder, and the role of Salmonella persisters in undermining host defenses during antibiotic treatment. Subscribe to TWiM (free) on iTunes, Google Podcasts, Stitcher, Android, RSS, or by email.  Become a Patron of TWiM! Please take the TWiM listener surveyBacteria alter behavior in mouse autism models (Neuron) Mice behaving badly (TWiM 131) Salmonella persisters undermine host immune defenses (Science) Persister cells (Ann Rev Microbiol) Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

The TWiM team reveals an extremely low rate of mutation in a 2500 year old, 185 acre fungus in Michigan, and how a host-produced quorum sensing autoinducer controls the phage switch between lysis and lysogeny. Please take the TWiM listener survey Vote for NJ State Microbe Huge fungus is 2500 years old (Proc Roy Soc B) Humongous fungus (Wikipedia) Host-produced autoinducer controls phage (Cell) These bacteria are bugged (virology blog) Subscribe to TWiM (free) on iTunes, Google Podcasts, Stitcher, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a Patron of TWiM! Links for this episode Please take the TWiM listener survey Vote for NJ State Microbe Huge fungus is 2500 years old (Proc Roy Soc B) Humongous fungus (Wikipedia) Host-produced autoinducer controls phage (Cell) These bacteria are bugged (virology blog)L Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to t

The TWiM team reveals the oldest human plague from 4,900 years ago in Sweden, and engineering E. coli to become an endosymbiont in yeast, modeling the evolution of mitochondria. Hosts: Vincent Racaniello, Elio Schaechter,  Michael Schmidt,  and Michele Swanson Subscribe to TWiM (free) on Apple Podcasts, Google Podcasts, Android, RSS, or by email. Get the entire ASM Podcast Network via our Microbeworld app. Become a patron of TWiM. Links for this episode Oldest human plague from 4,900 years ago (PNAS) Engineering yeast endosymbionts (PNAS) Letters read on TWiM 191 TWiM Listener survey Send your microbiology questions and comments (email or recorded audio) to "mailto:twim@microbe.tv">twim@microbe.tv

The TWiM-opods consider two stories about exosomes, vesicles that are shed from cells: those that eliminate airway pathogens, and those from the plants we eat that shape our gut microbiome. Hosts:  Vincent Racaniello, Michael Schmidt, and Michele Swanson. Subscribe to TWiM (free) on Apple Podcasts, Google Podcasts, Android, RSS, or by email. Get the entire ASM Podcast Network via our Microbeworld app. Become a patron of TWiM. Links for this episode Exosome swarms eliminate airway pathogens (J Aller Clin Immunol) Exosome release from Bacteria, Eukaryotes, Archaea (Infect Immun) Plant exosomes shape gut microbiome (Cell Host Microbe) Image credit Subscribe to MicrobeTV on YouTube TWiM Listener survey Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

The TWiM team considers the state of the world’s fungi as revealed by a report from the Kew Royal Botanical Gardens, and how Salmonella loses motility to evade host defenses. Hosts: Vincent Racaniello, Michael Schmidt, Elio Schaechter, and Michele Swanson Take our listener survey. Thanks! asm.org/twimpoll Subscribe to TWiM (free) on iTunes, Google Podcasts, Stitcher, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a Patron of TWiM! Links for this episode: Subscribe to MicrobeTV on YouTube State of the World’s Fungi 2018 Salmonella loses motility to avoid inflammasome activation (Cell Rep) Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

The TWiM rock stars show how to modify gram-positive antibiotics so they can kill gram-negative cells, and bacteria that have both DNA and RNA in their genome. Hosts: Vincent Racaniello and Michael Schmidt Links for this episode Antibiotics for gram-positives that kill gram-negatives (J Med Chem) Sideromycin commentary (Am Council Sci Health) Bacterial genome with DNA and RNA (J Am Chem Soc) Subscribe to TWiM (free) on Apple Podcasts, Google Podcasts, Android, RSS, or by email. Get the entire ASM Podcast Network via our Microbeworld app. Become a patron of TWiM.

The TWiM people reveal that phages must cooperate to overcome CRISPR-Cas defenses, and the effect of the herbicide glyphosate on the gut microbiome of honey bees. Hosts: Vincent Racaniello, Elio Schaechter, Michael Schmidt, and Michele Swanson Subscribe to TWiM (free) on iTunes, Google Podcasts, Stitcher, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a Patron of TWiM! Links for this episode: Phages Cooperate to Overcome CRISPR-Cas Immunity (Cell) Glyphosate perturbs gut microbiota of honey bees (PNAS) Letters read on TWiM 187

The TWiM team describe the involvement of a microbiome in snail metamorphosis, and using Listeria to kill tumors. Hosts: Vincent Racaniello, Michael Schmidt, and Michele Swanson. Subscribe to TWiM (free) on Apple Podcasts, Google Podcasts, Android, RSS, or by email. Get the entire ASM Podcast Network via our Microbeworld app. Become a Patron of TWiM! Links for this episode Infectious diseases after Florence (Med Inf Dis) Cryptic niche switching in gastropod (Proc Roy Soc B) Metamorphosis then no eating (NY Times) Listeria promotes tumor rejection (PNAS) Image credit LADD pathway (jpg) LADD (Aduro Biotech) Crawling cells and comet tails (YouTube) Letters read on TWiM 168 Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv  

The TWiM team considers the increasing tolerance of Enterococcus to handwash alcohols, and how the study of DNA in ancient dung reveals the diet and parasite burden of extinct New Zealand birds. Subscribe to TWiM (free) on iTunes, Google Podcasts, Stitcher, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a Patron of TWiM! Episode Links: Hand sanitizer alert (Emerg Inf Dis) Bacteria becoming hand sanitizer tolerant (NPR) Increasing tolerance of Enterococcus to handwash alcohols (Sci Transl Med) Coprolites and the Moa (PNAS) After Hurricane Florence, Significant Worry Over Infectious Diseases Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv  

Sam Sternberg discusses his work on exploring and exploiting CRISPR-Cas immune systems, beginning as a graduate student with Jennifer Doudna, at a biotech start-up, and in his laboratory at Columbia University. Host: Vincent Racaniello Guest: Sam Sternberg  Become a Patron of TWiM! Links for this episode Sternberg Laboratory at Columbia Mechanism of substrate selection by Cas9 (RNA) DNA interrogation by Cas9 (Nature) Conformational control of DNA target cleavage by Cas9 (Nature) A Crack in Creation by Doudna and Sternberg What if we could rewrite the human genome? (YouTube) Sam Sternberg Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

The TWiMpeeps discuss two symbioses: a parasitoid bacterium of a heterotrophic protist, and fungal parasites in cicadas. Become a patron of TWiM. Links for this episode: Parasitoid bacterium of protist (bioRxiv) Fungal symbiont recruitment in cicadas (PNAS) Fly by virus (TWiEVO 33) The Atlantic “How to Tame a Zombie Fungus” by Ed Yong Image credit Letters read on TWiM 183 Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

The TWiM hosts reveal how to test antimicrobial susceptibility in less than 30 minutes, and a carbonate-sensitive phytotransferrin in diatoms that controls iron uptake. Become a Patron of TWiM! Links for this episode: Legionnaire’s Disease with Michele Swanson Antibiotic susceptibility in less than 30 min (PNAS) S. saprophyticus growing in microfluidic chip (movie, PNAS) Mother machine (Jun lab) E. coli growth in mother machine (YouTube) Diatom phytotransferrin (Nature) CRISPR tool kit (Nat Commun) A Crack in Creation by Doudna and Sternberg CRISPR/Cas9 for undergrads (BMBE) John Oliver on gene editing (YouTube) Image credit Letters read on TWiM 182   Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

Vincent speaks with John Warhol about state microbes, the Periodic Table of the Microbes, and why microbiology is cooler than astrophysics, but they have better TV shows. Host: Vincent Racaniello Guest: John Warhol Subscribe to TWiM (free) on Apple Podcasts, Google Podcasts, Android, RSS, or by email. Get the entire ASM Podcast Network via our Microbeworld app. Become a patron of TWiM. Links for this episode State Microbe (Wikipedia) Micro Minutes! (tumblr) Warhol Science on Etsy Periodic Table of Microbes (Amazon) Image credit Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Vincent speaks with Mark O. Martin about microbial centricity, teaching undergraduates microbiology, lux art, painting with glowing bacteria, tardigrades and much more at ASM Microbe 2018. Host: Vincent Racaniello Guest: Mark O. Martin Subscribe to TWiM (free) on Apple Podcasts, Google Podcasts, Android, RSS, or by email. Get the entire ASM Podcast Network via our Microbeworld app. Become a patron of TWiM. Links for this episode Microbial menagerie All creatures great and small Carski Award Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

The TwiModulators discuss aerosolization of bacteria and viruses in an ocean-atmosphere mesocosm, and how the common practice of decontaminating produce with chlorine produces viable but non-culturable pathogens. Become a patron of TWiM. Links for this episode: Taxon-specific aerosolization of bacteria and viruses (Nat Commun) Chlorine produces viable but non-culturable bacteria (mBio) Chlorine washing fails bacteria test (Guardian) Foodborne illness in US: Major pathogens (CDC) Chlorine dilution calculator (Public Health Toronto) Multistate foodborne outbreak investigations (CDC)

The TWiM team travels to ASM Microbe 2018 in Atlanta, Georgia to speak with Christina Kellogg about her career and her research on coral microbial ecology. Hosts: Vincent Racaniello, Michael Schmidt, Elio Schaechter and Michele Swanson Guest: Christina Kellogg Subscribe to TWiM (free) on iTunes, Stitcher, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a Patron of TWiM! Links for this episode: Christina Kellogg on twitter Coral microbial ecology Coral reef ecosystem studies Connectivity of vulnerable reefs Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

The TWiM team discuss bacteriophage evolution in a dairy plant, and killing of less fit cells among social microbes. Hosts: Vincent Racaniello, Michael Schmidt, Michele Swanson, and Elio Schaechter. Subscribe to TWiM (free) on iPhone, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Links for this episode A decade of phage evolution (Appl Env Micr) Animation of phage infection (Vimeo) Double agar assay for phage (Dairy Science) Sibling conflict among social bacteria (mBio) Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

Vincent, Michael and Elio note the passing of Stanley Falkow, give E. coli an archaeal membrane, and show how the microbiome can make worms live longer. Hosts:  Vincent Racaniello, Michael Schmidt, and Elio Schaechter. Subscribe to TWiM (free) on iPhone, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a patron of TWiM. Links for this episode Fecal transplants in the good old days (STC) Stanley Falkow, 84 Loss of an old army buddy (STC) Giving E. coli an archaeal membrane (PNAS) Microbiome tunes host longevity (Cell) Letters read on TWiM 176 Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

The TWiM team notes the passing of Allan Campbell, and explains how aminoglycoside antibiotics like neomycin enhance host resistance to viral infection. Hosts:  Vincent Racaniello, Michael Schmidt, and Michele Swanson. Subscribe to TWiM (free) on iPhone, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a patron of TWiM. Links for this episode: Happy Birthday, Elio! (STC) Allan Campbell, 88 (Stanford News) Life in Science by Allan Campbell (Bacteriophage) Aminoglycosides inhibit viral infection (Nat Micro) Image credit Letters read on TWiM 175 Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv