This Week in Microbiology

TWiM explains how mechano-bactericidal surfaces made from diverse materials and patterned with spikes kill bacteria on contact, and virus-host evolution is reshaped by microgravity aboard the International Space Station.
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Links for this episode:


Mechano-Bactericidal Surfaces (Adv Sci)

Piercing pathogens (ASM)

Natural bactericidal surfaces (Small)

Virus-host evolution in microgravity (PLoS Biol)



Music used on TWiM is composed and performed by Ronald Jenkees and used with permission.
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TWiM explains the finding that owning a dog during adolescence alters the microbiota and improves mental health, and the molecular basis for multidrug efflux by an anaerobic-associated resistance-nodulation-cell division transporter.
Hosts: Vincent Racaniello, Michael Schmidt, Michele Swanson and Petra Levin.
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Music used on TWiM is composed and performed by Ronald Jenkees and used with permission.
Links for this episode
Dog ownership and the microbiome during adolescence (iScience)
Molecular basis for multidrug efflux (Nat Comm)
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TWiM explains how S. aureus pathogenicity is a dynamic, niche-specific choreography that constantly recalibrates in response to the host microenvironment, and short chain fatty acids produced by commensal microbiota reduces its competitive fitness.
 
Hosts: Michael Schmidt, Michele Swanson and Petra Levin.

Guest: Mark O. Martin
 
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Links for this episode:


Niche-specific fitness of S. aureus at the wound edge (Nat Comm)

Commensal derived short chain fatty acids attenuate S. aureus (mBio)

Ditch the term pathogen (Nature)


 
Music used on TWiM is composed and performed by Ronald Jenkees and used with permission.
Send your microbiology questions and comments to [email protected]

TWiM explains how competition for nutrients anticipates and potentially mitigate drug side effects on the gut microbiota, and metabolic control of porin permeability influences antibiotic resistance.
Hosts:  Vincent Racaniello, Michael Schmidt and Petra Levin
Guest: Mark O. Martin
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Links for this episode:
Nutrient competition predicts drug effects on microbiota (Cell)

Metabolic control of porin permeability influences antibiotic resistance in E coli (Nat Micro)

Santiago Cano-Muniz

 
Music used on TWiM is composed and performed by Ronald Jenkees and used with permission.
Send your microbiology questions and comments to [email protected]

TWiM explains a biological mechanism that links sulfur and iron cycling in anoxic environments, and "swashing," a form of surface movement in which bacteria migrate without active propulsion.
Hosts:  Michael Schmidt, Michele Swanson, and Petra Levin
Guest: Mark O. Martin
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Links for this episode
Sulfur and iron cycling in anoxic environments (Nature)
Bacterial surface migration by swashing (J Bacteriol)
Become a Patron of TWiM!
Music used on TWiM is by Ronald Jenkees.
Send your microbiology questions and comments to [email protected]