Chromobacterium violaceum is a gram negative bacterium known to produce a natural antibiotic violacein which has other additional properties as well.
Here I was testing the MIC for a range of antibiotics and found a amazing result wherein i could clearly see "persisters" which will at a later s... Read More
Image taken in Jamestown in March, similar to previous post. Several people in our dept have suggested chechen of the forest or SIlvershelf. Read More
This is a good news story all around. UC Berkeley engineers, Michael D'Amrosio and Matthew Bakalar (UC Berkeley Bioengineering) with medical personal from NIAID, Dr. Thomas Nutaman and his collaborators from Cameroon and France collectively took the omni-present global resource, a standard smar... Read More
This episode: Hoopoes inoculate their eggs with protective bacteria!
(6.5 MB, 7 minutes)
Rubella, a disease with terrible consequences for unborn children, has finally been eliminated from the Americas, a scientific panel set up by global health authorities announced Wednesday. Read More
Positive EDTA disc synergy test.
This Klebsiella pneumonia was isolated from a sputum sample. Read More
This picture was taken in early October 2014 in the Washington, DC metro area. The temperature that week had been in the mid-70's during the day to the low 60's at night (Fahrenheit), and it hadn't been too humid. This had grown at the base of a tree, and was very large -- my hand is in there fo... Read More
Streak plate of Proteus vulgaris. The plate was incubated at 37 degree C for 48 hrs then held at room temperature for 1 week. Swarming, white growth with finger like projections at the outer edges, around the circular solated colonies, circular white/beige opaque colonies, was not seen until ... Read More
Unknown fungal contaminant seen on Casein media after 1 month at refrigerated temperatures. Green spore formation is seen throughout the colony with white hyphal growth on the outer edge of the colony. The center was raised and had deep groves. Read More
Agar contaminant seen on TSA after 1 month at refrigerated temperatures. Colony was yellow, mucoid, partially circular with concentric circular raised rings with an orangish center. Read More
Image of a Puff ball taken at Hoh Rainforest on the Olympic Peninsula in Western Washington, largest Temperate Rain forest in the United States. The large white ball is the fruiting body which contains the spores. Read More
"The WHO, largely unchanged since its creation, is ill-equipped to deal with the disease threats that this new world creates...the recent Ebola outbreak is a case in point. Even the WHO's director-general, Margaret Chan, said her organisation was "overwhelmed" and admitted that a crisis on that ... Read More
Is the end of HIV near? Findings published this week in Antimicrobial Agents and Chemotherapy report that a novel, subdermal implant delivering potent antiretroviral (ARV) drugs shows extreme promise in stopping the spread of HIV. Read More
Antimicrobial-producing Streptomyces species, cultured from Antarctic soil. Read More
A new study led by researchers at the University of Minnesota has found a three-way link among antibiotic use in infants, changes in the gut bacteria, and disease later in life. The imbalances in gut microbes, called dysbiosis, have been tied to infectious diseases, allergies and other autoimmun... Read More
I am a big believer that different pedagogical approaches can "reach" different students. In most of my classes, I give students an optional assignment: come up with a creative project that explores some aspect of class. This takes several steps. First, I make the students come up with an ide... Read More
In a new study, researchers demonstrate for the first time how methanogens obtain electrons from solid surfaces. The discovery could help scientists design electrodes for microbial “factories” that produce methane gas and other compounds sustainably. Read More
A new microneedle patch administered with the press of a thumb could make it easier to vaccinate people against measles and other diseases. Read More
As greater atmospheric carbon dioxide boosts sea temperatures, tropical corals face a bleak future. New climate model projections show that conditions are likely to increase the frequency and severity of coral disease outbreaks. Read More
An unknown fungal contaminant growing on Eosin Methylene Blue (EMB) plate. The fungal colony shows a number of interesting features where it takes up or interacts with they dyes in the medium. Some of the colonies illustrate interesting inhibitory effects on adjacent colonies or appear the inf... Read More