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
At the University of Cologne, biophysicists in the lab of Professor Berenike Maier were now able to show how differential mechanical forces can lead to cell sorting in biofilms, thereby determining their architecture. In their publication in the journal eLife, the team headed by the biophysicist... Read More
Sputum specimen from sick of fibrosis cystic can hold many microbes and yeast. This specimen sent to our laboratory Mycobacteriology of Polyclinic University of Messina for mycobacteria research, shows yeast cells with Ziehl-Neelsen stain. 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
A smear showing LD bodies inside a macrophage from a patient of Kala-azar visiting Universal College of Medical Sciences and Teaching Hospital. Photo Courtesy: Dr. Deliya Paudel, Department of pathology Read More
The picture was taken after my students at the Inter American University of Puerto Rico-San German, learned the technique of water filtration analysis of fecal coliforms in water. They filtrated a mL of groundwater from a nearby aquifer and transferred the filter to Endo agar plates. The pictur... Read More
Fungal contaminant seen on Starch agar after 1 month at refrigerated temperatures. Colonies were blackish green and circular. Elevated tufts could be seen in the middle of each colony with small water droplets in the rhizoid growth. Read More
Pure culture of Pseudomonas sp. isolated from rain collected at Virginia Tech, USA.
Incubation Conditions: 48 hours at 28°C + 24h at 20°C on EMB Agar
It can be distinguished two types of colonies following a gradient of culture density.
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
Methicillin Resistant Staphylococcus aureus (MRSA) isolated from animals. The organism was grown on seven different agar medium. On blood agar (Centre), it forms small to medium sized colonies surrounded by weak beta-hemolysis. It shows diverse types of color in different chromogenic medium- pin... Read More
Bacterial Hand Print doen on TSA agar, incubated for 48 hrs at 37 degree's C. Bacteria seen are mainly Bacillus spp. Read More
Unknown organism seen on a hand print after washing with soap and water grown on a TSA plate for 24 hrs, room temperature for a day and several days at refrigerated temp. Organism was a mat pale yellow with raised rhizoid growth in the center and smooth edges. Read More
Scientists have identified a gene that could potentially open the door for the development of new treatments of the lethal disease sepsis. Read More
This Bifidobacterium breve was isolated from infant feces and have been evaluated for probiotic and functional attributes. Morphology of bifidobacteria isolates were observed to be typical `Y- shaped' with bilobed ends when visualized under Scanning Electron Microscopy as shown in image. Read More
A small grape leaf was pressed/printed onto a large TSA plate incubated for 48 hrs at 37 degree's C, then place at refirigerated temps for 3 days. The result was a mix of yeast (yellow/orange) , several Bacillus spp and a variety of other unknown organisms. The outline of the leaf is not that ... Read More
With the Zika virus spreading toward the United States, threatening pregnant mothers and the 2016 Olympics, aid workers have placed hope in a familiar fish.
In the wake of Hurricane Katrina, the Virginia-based non-profit Operation Blessing helped avert an outbreak of the West Nile virus in Ne... 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
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 was an environmental isolate collected from students in an introductory microbiology lab. The sample was collected from a soap dispenser using a cotton swab and spread on a TSA plate, followed by incubation at 37 degrees Celsius for 48 hours. This organism has an interesting and beautiful r... Read More