I comment a bit, as an educator, about the loss of Carl Woese. Not only the importance of his discoveries, but how he went about his work, remains of great value. Read More
Your most recent TWIV in Nebraska made me want to add a few verses to that old kids’ song…
“There’s a virus in the alga in the paramecium on the speck on the flea on the wart on the frog on the bump on the log in the hole in th... Read More
Lately, we've been learning more and more about the teeming masses of bacteria inside our bodies - essentially trillions of tiny organisms that make us sick and keep us healthy.
Now two scientists at the University of Colorado have dared to ask what kinds of bacteria lives inside our mouths. ... Read More
In case this didn’t make the news in the city, I thought you might be interested in this report of Hantavirus in the Adirondacks. It looks like a wooden lean-to was the “scene of the crime” again!
Many species exhibit cooperative survival strategies — for example, sharing food or alerting other individuals when a predator is nearby. However, there are almost always freeloaders in the population who will take advantage of cooperators. This can be seen even among microbes such as yeast, whe... Read More
This episode: Soil bacteria could help prevent food poisoning from bacteria in raw tomatoes!
(9.6 MB, 10.5 minutes)
The Gram stain is commonly used in epidemiologic and clinical studies. It involves smearing a sample onto a slide, staining the material using dyes that bind to bacterial cells, and visually inspecting under a microscope. Many epidemiologic and clinical studies of pregnancy, sexually transmitted... Read More
The pathogen Escherichia coli O157:H7 can spread, likely airborne, more than one tenth mile downwind from a cattle feedlot onto nearby produce, according to a paper published ahead of print in Applied and Environmental Microbiology. The high percentages of leafy greens contaminated with E. coli ... Read More
Vincent, Dickson, and Daniel solve last week's case study, present a new one, and reveal how secreted proteins from a helminth prevent diabetes in mice.
Here is a transcript of TWiM episode #47, "Resistance on the surface". Thanks to Raphael Fernandez and Steve Stokowski for transcription.
The transcript is also available as a pdf file - click here to download.
<... Read More
Vincent and Dickson discuss how malaria parasites induce odors in their rodent hosts that attract mosquitoes.
This episode: Gut microbe communities can help regulate the immune response to pathogens!
(9.5 MB, 10.3 minutes)
Vincent, Dickson, and Daniel provide the solution to last week's case study, present a new one, and discuss how immune suppression by nematodes increases tuberculosis fatality in African buffalo.
Have you ever wondered why mozzarella bubbling and stretching between pizza slices is so different from the earthy flavors of blue-veined gorgonzola? The diversity of cheeses we love are created by encouraging and manipulating the growth of specific microbes. The American Socie... Read More
Los anfibios que actúan como indicadores del estatus del ecosistema; éste es el tema que será discutido en el episodio de hoy con nuestra invitada, la Dra. Read More
This episode: "Selfish" jumping gene is actually helpful for its host plant's resistance to disease!
This episode: Bacteria with engineered circuits can detect and keep a record of stuff in their environment, like in the gut!
(14.6 MB, 15.9 minutes)
This episode: Virus helps to modify mice such that certain colors of light can cause or prevent pain!
(10 MB, 10.8 minutes)
This episode: Multiple different fungi kill insects and give their nutrients to plant partners!
(8.3 MB, 9 minutes)