An outbreak of Ebola hemorrhagic fever that began in early July 2012 has involved at least 36 individuals and 16 deaths. So far the disease has been confined to a rural region west of Kampala, the capital of Uganda. The subject of Richard Preston’s scary The Hot Zone, Ebola virus is newsworthy b... Read More
This episode: Evolving bacteria to use a synthetic base in its DNA!
Nuevas guías de la Agencia de Protección Ambiental (USEPA) para las aguas recreacionales: éste es el tópico que discutiremos hoy con Grace Robiou, quien ha trabajado durante los últimos años buscando nuevos indicadores de riesgo que protejan mejor a los bañistas.
Aunque en el mu... Read More
This episode: Gut bacteria may convert cortisol into important human hormones!
(6 MB, 6.5 minutes)
Note: Episode 144 is now available too. Sorry about that. Not sure what went wrong there, but it is regrettable.
A minor player in the gut, Clostridium scindens,... Read More
The current Ebola virus outbreak in West Africa has sickened over 14,000 people and has killed over 5,100. Health workers from around the world are attempting to halt this deadly disease. On November 19th, the American Society for Microbiology featured two of these health workers, Dr. Joseph ... Read More
This episode: Helpful gut bacteria communicate with the immune system!
In this audio in spanish language from "El podcast del microbio" I made a resume of the post "Mother's Love" published in Moselio Schaecht... Read More
Viruses may be referred to often as the smallest infectious things. But there are some smaller contenders. Some of the agents of plant disease lack even a viral coat and are merely small strings of plain, or "naked," RNA. These particles are called viroids. They are believed ... Read More
A collection of funny images about microbiology. Although the text is in Spanish language, it can be easily understood. Read More
This episode: Engineered bacteria could help capture CO2 and convert it into a solid form for storage!
(7.3 MB, 8 minutes)
E. coli engineered to produce the enzyme carbonic anhydrase, which converts carbon dioxide to bicarbonate and then to calcium carbonate,... Read More
This episode: Virus + bacterial enzyme = cancer killer!
This episode: Bacteria use fungal filaments like highways to swim through soil!
(7.7 MB, 8.3 minutes)
Is bacterial DNA contamination in your whole genome amplification kit a problem? For microbiologists it sure is. WGA is a technique where the complete genomic content of a sample is amplified non-specifically and at a single temperature (isothermically). The presence of any contaminating DNA in ... Read More
This episode: Cold-loving bacteria can repair surprising amounts of DNA damage even sub-zero temperatures!
(9.1 MB, 9.9 minutes)
Bacteria isolated from the Siberian arctic permafrost are exposed to a lot of radiation over thousands of years, but somehow they are able to repair... Read More
I recently returned from the ASM yearly general meeting in San Francisco. It happens to be 60 years, no less, since I attended my first such event, that one in Chicago. In those days, many members attended a giant banquet as part of the event, I well remember. As a poor graduate student, I could... Read More
Colloid may not be a common term in biology these days, but in the early 20th century, colloids were believed to hold the key to the secrets of life. So what is a colloid? According to the Encyclopaedia Britannica it is any substance consisting of particles substantially larger than atoms or ord... Read More
Alkaline lysis was first described by Birnboim and Doly in 1979 (Nucleic Acids Res. 7, 1513-1523) and has, with a few modifications, been the preferred method for plasmid DNA extraction from bacteria ever since. The easiest way to describe how alkaline lysis works is to go through the procedure ... Read More