HIV-1 infection with multiple founder variants points to poorer clinical outcomes than infection with a single variant, according to a paper published today in the journal Nature Medicine. Read More
Students in the summer STEM program at Cabrillo (these were college age students) were asked to do a handprint of their unwashed hand then of their hand after washing. This is a before and after of what the majority of the plates looked like. Plates were incubated for 48 hrs at 37 degrees C ... Read More
PROVIDENCE, R.I. [Brown University] -- A new study of the relationship between violent conflict and HIV incidence in sub-Saharan Africa finds that HIV incidence may be at its worst in the period before hostilities break out. The Brown University analysis reports that the rate of new infections r... Read More
The Zika virus infects a type of neural stem cell that gives rise to the brain's cerebral cortex, Johns Hopkins and Florida State researchers report March 4 in Cell Stem Cell. On laboratory dishes, these stem cells were found to be havens for viral reproduction, resulting in cell death and/or di... Read More
Yeast extract-mannitol agar (YMA), with the pH indicator bromothymol blue (BTB), is the medium used for rhizobia isolation and characterization.
In this pic, one Bradyrhizobium strain isolated from cowpea root nodule in Brazil showing a "white pearly colony" 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
The doctors TWiP solve the case of the Woman with White Worms, and explore the role of a secreted growth factor from a carcinogenic parasite in wound healing and angiogenesis.
Hosts: Read More
I happen to come across some colonies (I thinks its a bacterium) on some left over yoghurt and was wondering if someone could help me to identify it.
About the colonies.
I had left some yoghurt in the fridge for some days. I noticed that the yoghurt surface has been stain... Read More
Growth of Salmonella C1 on XLD agar showing the typical production of black pigment from H2S Read More
DNase agar can be used to differentiate between potentially pathogenic S. aureus and other Staphlococcus by looking for the presense of the exoenzyeme DNase. After growth for 24-48 hrs 1N HCL is added to the agar plate. Addition of HCL precipitates DNA in the media causing cloudiness unless t... Read More
The deer tick transmits Lyme disease and other diseases, which cause thousands of human and animal deaths annually. With about 10,000 new patients each year, occurrences of Lyme disease in Switzerland are amongst the highest in Europe, representing a substantial healthcare cost and threatening S... Read More
New research to be published January 13 in the journal Scientific Reports shows that some bacterial cultures adopt an all-for-one/one-for-all strategy that would make a socialist proud in preparing for the possibility of an antibiotic onslaught. Read More
This fungal colony, in association with a few others, was grown on SDA and appears to be an antibiotic producer. The compounds that it's producing appear orange and red. The colony grew and began producing compounds on the agar after five days incubation at 30 degree Celsius. This plate is part ... Read More
A new test called ViroCap can detect thousands of viruses that make people and animals sick. Read More
This strain of Pseudomonas aeruginosa isolated from wound make a green pigment: pyoverdine. Pyoverdine is a fluorescent siderophores for to acquire iron.
Pyoverdine biosynthesis in Pseudomonas aeruginosa and fluorescent Pseudomonads is a complex process.
Credits: dr. Francesco d'Aleo & Robe... Read More
We took a few swabs around school - a few cultures have grown up that I am unable to identify. The first is this orange culture, which came from our water fountains (photo is 3 days after the sample was taken). Read More
A newly discovered virus is the reason why some piglets shake so uncontrollably that they aren’t able to nurse. Read More
Sometimes when a hairy beast of a contaminant grows on an old plate, the only thing to do is marvel at its beautiful rings and turn it into a cute cartoon. Any takers on the likely identity of this fungus? Read More
Isolated colony of Mycobacterium smegmatis grown on TSA for 96 hrs at 37 degrees C. Margin is lobate with an irregular-rhizoid form. Image taken using transmitted light. Read More
Researchers at Massachusetts General Hospital have found that the physicians least likely to encounter the infectious Ebola virus tend to be overly cautious even with low-risk patients. Read More