This feathery environmental sample is likely to be Bacillus mycoides, often recognized by its characteristic appearance. This particular bacterial specimen was propagated on GCB (gonococcal base) agar for several days at room temperature, with the plastic eyes added just prior to its disposal. 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
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
The decision to warn the world of future global disease epidemics like Ebola would be taken out of the hands of the director general of the World Health Organisation under plans formulated by experts at a meeting hosted by Angela Merkel, the German chancellor. Instead it would be given to a new ... Read More
Antimicrobial-producing Streptomyces species, cultured from Antarctic soil. Read More
Citric Acid Fermentation in a flask. @ www.microbiologylover.wordpress.com https://microbiologylover.wordpress.com/2015/05/15/fungal-magic/ Read More
Unknown environmental contaminant on blood agar plate streaked with Enterococcus faecalis. Plated was incubated at 37 degrees C for 24 hrs then held at room temperature. Contaminant was not seen until plate was held at room temp for several weeks. The organism was red, mucoid, and had raised... Read More
Unknown Yeast contaminant seen on Casein media. The contaminant was around the edges of the plate with isolated colonies seen towards the center of the plate after 1 month refrigerated temperatures. Colonies were light opaque pink, mucoid and had concentric rings slightly elevated in the cen... Read More
Positive EDTA disc synergy test.
This Klebsiella pneumonia was isolated from a sputum sample. 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
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
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
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
"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
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
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
the carbohydrate esculin
-Group D Streptococcus sp. will convert esculin into 6,7-dihydroxy-coumarin which reacts with the iron salts to form a black precipitate.
--Non Group D Streptococcus sp. do not produce the black color.
(A) Enteroco... Read More