Serratia marcescens can form brilliant red colonies on LB agar due to the synthesis of the secondary metabolite prodigiosin. In the Microbiology teaching lab, we had students create pigment mutants of S. marcescens and these lovely shades of pink and white were collected for analysis. Read More
Throat swab of (5) years old child from emergency department for culture and sensitivity clinical summary scarlet fever.
Streptococcus pyogenes, or Group A Streptococcus, is a spherical, Gram-positive bacterium. S. pyogenes displays streptococcal group A antigen on its cell wall and typic... Read More
Here's my summary of ASM2015, an exciting weekend full of science.
(11.5 MB, 12.5 minutes)
A eukaryote without a mitochondrion, and using a phage enzyme to eliminate intracellular bacteria are two topics discussed by the TWiMers on this episode.
Image (right): An entry in the ASM Agar Art Contest which bears an uncanny resemblance to one of the TWiM hosts.
Host... Read More
The TWiP trifecta solves the case of the Woman from Bolivia with Belly Pain, and discuss a method for population modification of malaria mosquitoes using a Cas9-mediated driver gene.
Hosts: Read More
I'm sorry, I may have missed something, but the mechanism behind an effective vaccine is still unclear to me, since infection with F. tularensis does not confer protection. How would a vaccine work?
Katy Bosio replies:
In... Read More
This episode: Feeding mice high-fiber diets reduces their risk of allergic airway disease, even across generations!
(12.1 MB, 13.2 minutes)
This episode: When digesting wood, shipworms outsource their microbial symbionts from gut to gills!
(9.7 MB, 10.6 minutes)
La Microbiología en España, la metagenómica y patógenos emergentes, son tres temas a ser discutidos hoy en La Radio el Mundo de los Microbios. Este episodio es una grabación hecha durante la Conferencia General de la Sociedad Americana para la Microbiología en Nueva Orleans, Louisiana e... Read More
This episode: In mice, high-fat diets affect their gut microbes, which in turn disrupts their circadian cycles and metabolic health!
(8.6 MB, 9.35 minutes)
Dear Vincent and Dickson,
I just returned from the annual meeting of the International Society of Travel Medicine (ISTM) where I enjoyed many fantastic lectures and caught more Cutthroat Trout fly fishing the upper Snake River during one ev... Read More
The Picornavirus Overview Video is the first video in our virus package. It introduces the Picornivirus family, covering general characteristics. More detail about each virus within the family is covered in those virus' individual videos. Read More
This episode: Engineered phages can both kill bacteria and disrupt their communications!
(14.8 MB, 16.2 minutes)
Vincent and Rich discuss fruit fly viruses, one year without polio in Nigeria, and a permissive Mar... Read More
Nervous in San Diego writes:
Dear Professors of TWiM,