A group of students (Adrienne Linzemann, Jose Aveja, Elsa quintero), staff (William Thompson), and faculty (Farahnaz Movahedzadeh) from Harold Washington College participated in Chicago River interdisciplinary project with the leadership of VP Margie Martyn, and isolated Pseudomonas fluorescens ... Read More
Philadelphia artist Kate Kaman (www.katekaman.com) has designed a dynamic larger-than-life sculptural depiction of the most plentiful and ancient microscopic life forms -- bacteria. Suspended throughout an area measuring approximately 130 feet long, 27 feet wide and 41 feet tall, “The Unseen Wor... Read More
E. coli on Endo Agar from my class of Water and Food Microbiology. Read More
Illustration of sites of embryonated egg inoculation Read More
I am in need of some assistance in Identifying a bacteria species. I am unable to locate a match in Bergey's Manual. Our copy is 20 years out of date. I know the photo isnt great, it was taken with a cell phone. The colonies are hot pink and were cultured on TSA slant. It is gram + micrococci, i... Read More
A false-coloured scanning electron microscope image of an African trypanosome, the parasite which causes sleeping sickness. Read More
This episode: Bacteria are important for a good immune response to unadjuvanted influenza vaccines!
(14.6 MB, 16 minutes)
A photomicrograph of Salmonella bacteria. Courtesy of Pacific Northwest National Laboratory. Read More
Quantitative precipitin test. Constant antibody with 2-fold increase in antigen concentration. Note inhibition in antigen excess and precipitation in equivalence zone. Read More
This digitally-colorized scanning electron micrograph (SEM) depicted the dorsal (upper) surface of a Giardia protozoan that had been isolated from a rat’s intestine. Some of the identifying morphologic characteristics include pairs of thread-like flagella that facilitate motility, and a ventolat... Read More
Swarm of paramecia surrounding an unidentified protozoan. From the Wistreich Collection. Read More
Lung tissue from case of Aspergillosis. PAS stain (900X) Read More
Organisms grown on MacConkey Agar at 37 degrees for 24 hours.
-Important Ingredients: crystal violet, bile salts, neutral red (color indicator), lactose
-Differential: used to identify and isolate lactose fermenting G- enteric bacteria mainly Enterobacteriaceae. Strong lactose fermentation pr... Read More
Orange pigmented crustose lichens. From the Wistreich Collection. Read More
The foreground shows the density map (gold) from a cryoelectron micrographic reconstruction of malabaricus grouper nervous necrosis virus, a fish nodavirus. The background shows the fitting of a two-domain model consisting of a protruding domain and a β-sandwich domain into the reconstruction de... Read More
Mmmmm, kinda looks like couscous right?
Well, though it might resemble a tasty side dish that's beloved in the Maghreb, it's actually a gnarly bacteria that causes URI's (upper respiratory infections) in both humans & animals.
Humans can prevent it by refraining from drinking unpasteurized mil... Read More
The New Scientist has published a nifty gallery of "psychedelic"-like images of human viruses. Many of them are from Government agencies so they are public domain. Click "source" to view the entire collection.
Neisseria meningitidis in sputum. Gram stain (1000X) Read More
Several paramecia showing internal structures. From the Wistreich Collection. Read More
A computer model shows side and top views of two different proteins produced by anthrax bacteria. The green molecule is "protective antigen" (PA), which spontaneously forms pores that penetrate organic membranes such as cell walls. The yellow molecule is "lethal factor (LF)." When a voltage is a... Read More