A false-coloured scanning electron microscope image of an African trypanosome, the parasite which causes sleeping sickness. Read More
Host: Vincent Racaniello
Vincent visits the laboratories of Kit and J... Read More
This episode: Colonizing ourselves with friendly bacteria could drive out more risky ones, such as those that cause meningitis!
(9.8 MB, 10.6 minutes)
Vibrio cholerae was isolated in the capital city Kathmandu , where as it causes cholerae endemic in certain remote parts in the country every year . Vibrio cholerae O1 ogawa serotype was isolated and identified after growth in TCBS agar and subcultured on HIA plate and performed oxidase test (+... 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
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
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: Vampirovibrio chlorellavorus, a predatory bacterium that feeds on Chlorella algae, is currently lost from science, but its genome has been sequenced and interpreted anyway, to reveal a surprising family history!
(9.4 MB, 10.25 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
Growth of Streptococcus mitis on blood agar demonstrating alpha hemolysis seen as a greenish color around the growing colonies due to a reduction of the hemoglobin to methemoglobin in the surrounding agar. Image taken using transmitted light. Read More
This episode: Gut bacteria kill their drug-resistant pathogenic cousins of the same species via pheromone signaling!
Just to let you know, I'm trying to finish up my dissertation and graduate in the next few months, so after episode 240, I will be putting the show on hold, at least for... Read More
This episode: Bacteria from wastewater treatment sludge can produce lots of biodegradable plastic!
(7.1 MB, 7.75 minutes)
Lasers are the new DNA. It is called matrix-assisted laser desorption/ionization–time of flight (MALDI-TOF) and it uses mass spectrometry to quickly test for hundreds of different pathogens in a small sample using a single automated device. MALDI-TOF is increasingly being used in clinical micr... Read More
Nishal Govindji-Bhatt, Post-doctoral Research Associate at the University of Manchester, United Kingdom, and Curtis Dobson, PhD, University of Manchester, discuss how to best avoid eye infection caused by poor contact lens case cleaning.
When I began listening to TWIV almost a year ago, I had just switched majors from philosophy to biology. I am now writing to you good people at TWIM at the end of my first undergraduate summer research gig, where I have had qui... 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)
Microbes collected from Northern California and throughout the nation will soon blast into orbit for research and a microgravity growth competition on the International Space Station (ISS). This citizen science project, known as Project MERCCURI, is led by UC Davis microbiologists, who are inves... Read More