Scanning Electron Micrograph of Burkholderia cepacia.
Burkholderia cepacia is the name for a group or “complex” of bacteria that can be found in soil and water. B. cepacia bacteria are often resistant to common antibiotics.
B. cepacia poses little medical risk to healthy people. However,... Read More
Type IV pilus filaments on Gram-negative bacterial pathogens control movement, attachment, immune escape, and natural transformation. Pili are attractive targets for vaccines and therapeutics because of the key role they play in bacterial virulence as well as their prominent cell surface exposur... Read More
As the bacteria grow within a biofilm, they organize themselves into reproducible patterns and shapes that can be predicted with mathematical models.
Image: Confocal microscopy of a bacterial biofilm composed of Escherichia coli expressing the fluorescent proteins mCherry and sfGFP. The image w... Read More
b323-4 clostridium perfringens biochemical reactions 15x Read More
Magnified 1125X, this photomicrograph revealed some of the ultrastructural morphology displayed by the dematiaceous (pigmented) filamentous fungus, Phialophora richardsiae.
Note the septate hyphae from which sprout the short conidiophores, and still further distally one can see the flask-shap... Read More
Crystal violet stained cocci. Tetrads, and diplococcal and staphylococcal arrangements are present. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
mixed escherichia coli and staphylococcus aureus smear gram stain (1000x) Read More
Under a low magnification of 23X, this scanning electron micrograph (SEM) depicted a dorsal view of an unidentified male Dermacentor sp. tick found upon a cat in the suburbs of Decatur, Georgia, which measured approximately 3.5mm from its gnathosoma (i.e., capitulum), which is where its mouthpa... Read More
The U.S. Centers for Disease Control has just published a page that offers several public domain images of the H1N1 virus and several 3D graphical representations of seasonal influenza virus. There is also an image of the CDC developed PCR diagnostic test to detect novel H1N1 virus. The images a... Read More
Pictured is a culture of Mycobacterium tuberculosis growing colonies in the distinctive "serpentine cord" form seen in many strains of M. tuberculosis. These cords are made up of chains of cells that make chains due to a cell wall factor of MTB.
The cell wall structure of Mycobacterium is a m... Read More
Pseudomonas aeruginosa is a common bacterium which can cause disease in animals and humans.
An equal opportunity offender, it uses a wide range of organic material for food; in animals, this versatility enables 'ol Pseudomon here to infect damaged tissues or people with reduced immunity.
The... Read More
A pink-pigmented strain of Pseudomonas aeruginosa is shown in the picture. This was photographed in University of Colorado Hospital's clinical lab by the microbiology department. The organism is shown on Mueller-Hinton agar for Kirby-Bauer sensitivity testing.
The pigment pyorubin is responsi... Read More
Nonseptate hyphae of Mucor pusillus which have occluded a vessel. H & E stain Read More
Photomicrographs of smears of fowl blood showing Borrelia anserina Read More
The bacterium, Enterococcus faecalis, which lives in the human gut, is just one type of microbe that will be studied as part of NIH's Human Microbiome Project. Read More
Illustration of Toxoplasma gondii-extraintestinal cycle in cells of mammals Read More
This 1975 transmission electron micrograph (TEM) revealed the presence of a number of infectious bronchitis virus (IBV) virions, which are Coronaviridae family members, and members of the genus Coronavirus. IBV is a highly contagious pathogen, which infects poultry of all ages, affecting a numbe... Read More