Line inoculation of Micrococcus luteus on a TSA slant showing Filiform, uniform growth, along the margin. Culture was grown for 3 days at 37 degrees, M. luteus usually takes 3+ days for good growth. 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 Our copy is 20 years out of date.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
Acid fast colony (triple stain) in blood culture of a patient with untreated pulminary tuberculosis Read More
It goes by many names: Delhi belly. Montezuma's revenge. The Aztec two-step. But doctors use one not-so-glamorous term: traveler's diarrhea. Read More
This photomicrograph depicted a number of Gram-positive, endospore-forming Bacillus anthracis bacteria. B. anthracis is the pathologic microorganism responsible for the disease “anthrax”, an acute infectious disease, which most commonly occurs in wild and domestic vertebrates (cattle, sheep, goa... Read More
Diagnosis of deadly brain conditions could be helped by new research that shows how infectious proteins that cause the disease spread. Read More
This image depicts the quantitative difference in hemolytic reactivity seen in a trypticase soy agar culture plate containing 5% sheep’s blood growing group-D Streptococci (left wedge), group-B Streptococci (middle wedge), and group-A Streptococci (right wedge) bacteria. This plate was grown u... Read More
Microscopic view of a swarm of Euglena species. (approx. X 100). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
Fluorescent image of the sporangium, an enclosure in which spores are formed, of the slime mold Craterium minutum. Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®. Credit: Dr. Dalibor Matýsek, Mining University - Technical University of Ostrava, Ostrava, Czech Republic Read More
This is a close-up of a Mycobacterium tuberculosis culture revealing this organism’s colonial morphology.
Note the colorless rough surface, which are typical morphologic characteristics seen in Mycobacterium tuberculosis colonial growth. Macroscopic examination of colonial growth patterns is ... Read More
The sporophyte of the fern Pteris vittata, which tolerates and accumulates very high levels of the deadly toxin arsenic. Researchers from Purdue University have identified a gene (ACR3) from P. vittata that is necessary for the plant's tolerance to arsenic.
Jody Banks, professor of botany an... Read More
Streptomycetes are a member actinomycete family. Streptomycetes are usually found in soil and are important decomposers. They are aerobic, gram-positive, filamentous rods that create branching hyphae. They also produce more than half of the world's antibiotics, and are therefore very valuable in... Read More
Strep agalactiae (Group B Strep) streaked out on Granada plates. Usually this media is used to screen for Group B in pregnant patients, the strep will grow as bright orange colonies while any other growth will be colorless. Perfect for a little Halloween fun...follow me on instagram @stylish_str... Read More
Bacitracin test done on a lawn of Streptococcus pyogenes grown on blood agar. The zone of inhibition around the bacitracin disc, approx 14mm measuring the entire length of the zone, indicates sensitivity. The zone of inhibition is red because the red blood cells did not lyse. Grown for 24 hr... Read More
Tired of the portraits, landscapes and abstract art that peppers the walls of most art museums? According to Dutch photographer Wim von Egmond, there’s one art subject that has been ignored for centuries and finally deserves its due: microscopic organisms.
A collection of funny images about microbiology. Although the text is in Spanish language, it can be easily understood. Read More