Vincent, Dickson, and Daniel consider the delivery of anti-trypanosome nanobodies to the tsetse fly via a bacterial symbiont, and present a new case study.
This episode: Engineered bacteria can be made to produce many different useful kinds of biofilm!
(10.5 MB, 11.5 minutes)
This episode: Carbon monoxide-eating bacteria get modified to produce more useful products!
(16 MB, 17.5 minutes)
... Read More
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
Vincent, Alan, Rich and Kathy discuss the association of a virus with sea star melting disease, and the finding of a phycodnavirus in the oropharynx of humans with altered cognitive functions.
Why are obesity, juvenile diabetes and asthma increasing? Is it something in the environment or in our modern lifestyle? Dr. Martin Blaser thinks that it may be due to changes in our microbiome – the ecosystem of tiny microscopic creatures that live in and on us. Learn about his hypothesis th... Read More
Host: Vincent Racaniello
Vincent take This Week in Microbiology to th... Read More
This episode: A protein from gut bacteria has been tentatively linked with a human protein related to eating disorders!
(11.4 MB, 12.4 minutes)
"Two types of bacteria found in the soil have enabled scientists to get the dirt on how resistance to antibiotics develops along with a separate survival strategy.The study identifies an atypical antibiotic molecule and the way in which the resistance to that molecule arises, including the ident... Read More
Methyl Red/Vogoes-Proskauer (MR-VP)
One medium used for two separate but related tests, identifying butanediol (VP) or acidic fermentation products (MR) as part of the IMViC test used in the identification of Enterobacteriaceae.
•Methyl Red (MR): detects the ability of an organism to produc... Read More
This episode: Cancer-killing viruses could work even better when loaded into stem cells!
(8.3 MB, 9 minutes)
Organisms grown in Fluid Thioglycollate Media w/out resazurin dye is a reducing media that uses sodium thioglycollate to chemically combine with dissolved oxygen to deplete the oxygen in the media. All organism except for Neisseria sicca were grown for 48 hours at 37 degrees C. Neisseria sicca i... Read More
A new study has found that neither gay men nor heterosexual people with HIV transmit the virus to their partner, provided they are on suppressive antiretroviral treatment.
The PARTNER study, which is the world's largest study of people with HIV who have had condomless sex with their HIV ... Read More
This episode: Discovering how butterflies' bacteria change from caterpillar to adult!
(7.5 MB, 8.1 minutes)
This episode: Scientists engineered E. coli to seek and destroy pathogens!
(10 MB, 11 minutes)
A bacterium can sense pathogens in the body, swim toward them, and release a deadly biofilm-busting payload. This process is called pseudotaxis, and could be modified for many... Read More
Vincent, Dickson, and Daniel discuss how a secreted protein from the protozoan parasite Theileria transforms its host cells via a cellular proto-oncogene.
Hosts: Read More
This episode: Marine worms and their microbial symbionts can live on the toxic gas carbon monoxide!
Reminder: this is the last episode for at least a few weeks while I am wrapping up my PhD. See you again when I'm done!
(11.1 MB, 12.1 minutes)
This episode: Bacteria could reduce mercury's toxicity in their environment!
(6.5 MB, 7 minutes)
Methanotrophs (bacteria that use methane for their carbon and energy) secrete siderophore-like compounds that are usually used to chelate copper and make it more bioavailable, but ... Read More