Researchers often describe the battle between the Ebola virus and the humans it occasionally infects as a race—one that people win only if their immune systems manage to pull ahead before the virus destroys too many of their internal defenses. What they may not know is that the virus is a cheat.... Read More
New videos of morphing bacteria reveal that the strange, distinguishing features of so-called “electric bacteria” aren’t quite what they at first appeared to be.
For the past 10 years, scientists have been fascinated by a type of “electric bacteria” that shoots out long tendrils like electric... Read More
Microvores: A Game of Parasites is a microbial themed educational strategy game that has been funded on Kickstarter.com and has made the main-stream news! Read More
The TWiV team consults an epidemiologist to forecast the future scope of the Ebola virus epidemic in West Africa.
Hey Vincent, Elio, Michele and Michael!
I'm a first year microbiology graduate student at UC Berkeley and an avid listener of twim. Elio's snippet from the most recent podcast reminded me of a personal anecdote that might be useful to share with... Read More
A concentrated extract of maple syrup makes disease-causing bacteria more susceptible to antibiotics, according to laboratory experiments.
The findings, which will appear in the journal Applied and Environmental Microbiology, suggest that combining maple syrup extract with common antibiotics ... Read More
Cryptococcus cells seen with India Ink staining from CSF of an HIV patient in Tanzania. Taken using nothing more than a smartphone camera. The negatively stained capsule is clearly visible, proving that with very simple techniques and a cellphone you can get very clear images of microorganisms Read More
Organism seen on handprint, presumably Bacillus sp. Organism grew out from the center with rhizoid growth, lobate edges, tan coloration, glossy throughout the colony, Read More
It's not a secret that the microbes living in our guts play a huge role in our well-being, or that, at least in the United States, we're doing a good job of killing them off.
But now new research finds that apes -- our closest relative -- have much more varied gut flora than humans do, and es... Read More
This Week in Virology, the podcast about viruses, celebrated its 300th episode on Tuesday, August 26, 2014 with a live recording at the Washington, DC headquarters of the American Society for Microbiology. This special episode features the TWiV hosts Vincent Racaniello, Dickson Despommier, Al... Read More
Streptococcus pneumoniae cells are Gram-positive, lancet-shaped cocci. Usually, they are seen as pairs of cocci, but they may also occur singly and in short chains. In this photo a mucoid strain on blood agar showing alpha hemolysis (green zone surrounding colonies). Note the zone of inhibition ... Read More
In some parts of the world, many small children become infected with severe diarrhea which often proves fatal. The condition is usually caused by strains of Escherichia coli (commonly known as E. coli) bacteria, and bacteria of the genus Yersinia. These bacteria attach themselves to the wall of ... Read More
Dear Dr.s R, D & G,
I really hate to criticize learned professors, especially my elders. I suspect I may be being overly - sensitive or perhaps it is a cultural difference. However, the "over-talking" is decreasing the qualit... Read More
Bacteria can’t stick to a new type of nanoscale surface that could prove useful in food processing, medical, and shipping industries.
The technology uses an electrochemical process called anodization to create nanoscale pores that change the electrical charge and surface energy of a metal sur... Read More
I took these combined pictures after growing S. aureus ST151 and ST3028 on blood agar plates. Both strains were isolated from cases of subclinical mastitis The plates were incubated at 37 C for 24 or 48 hrs as shown in the picture. ST3028 is one of the novel strains recently identified in ou... Read More
We can see different biofilms types in liquid medium. In the same order than the picture: Methylobacterium variabile Type Strain / Methylobacterium aquaticum NO00 / Methylobacterium aquaticum NO42 / Methylobacterium aquaticum Type Strain / negative control Read More
Cyanobacteria could serve as a synthetic biology chassis that could be retooled for the production of biofuels, drugs or chemcials. So far, however, they have been held back by sluggish growth that makes it difficult to conduct the initial experiments needed to characterize their genetic and met... Read More
This episode: Parasitoid wasps spread helpful bacterial symbionts between their whitefly prey!
(10.9 MB, 11.9 minutes)
This tree is made up of Streptococus pneumoniae (as the leaves)and Candida albicans (as the trunk),cultured on a chocolate agar incubated 24hours under 5% CO2 condition.
S.pneumoniae is a alpha hemolytic organism producing green colour colonies while C.albicans produce 'feet'around the margin o... Read More