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Atomic Force Microscope Image-E. Coli

This image of the common Eschericia coli--or E. coli--was taken using a special microscope called an Atomic Force Microscope (AFM). The AFM image was produced by tracking across the top of the bacteria with a very sharp tip. The tip is as sharp as a few atoms. The very small change in height (am... Read More

Drawing of broken red blood cells, as seen in the blood of people with hemolytic uremic syndrome.

In hemolytic uremic syndrome, toxins destroy red blood cells. These misshapen cells may clog the tiny blood vessels in the kidneys.

Credit: National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health.
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Vegetables discarded, mulched over E. coli fears in Europe

Click source to view some great images of crops being destroyed as the result of E. coli prevention steps in Europe. Read More

Hepatitis virions, of an unknown strain of the organism

: This transmission electron micrograph (TEM) revealed numerous hepatitis virions, of an unknown strain of the organism. In the United States, viral hepatitis is an important public health problem because it causes serious illness, it affects millions, and it has a close connection with HIV. The... Read More

Ecological Genomics of Reef Corals

Young sibling polyps of staghorn coral (Acropora millepora) three days after settlement. In a National Science Foundation-supported study, researchers found that the ability to fluoresce may influence whether or not the coral settle on the reef of their origin or disperse, and go elsewhere.

M... Read More

Tons of cucumbers discarded over E. coli fears

Click source to view images of workers throwing away cucumbers to be destroyed at an agriculture facility near Bucharest on Monday, June 6, as sales collapsed in Romania's markets due to the fear of E. coli contamination. Read More

Salmonella typhimurium invading cultured human cells.

Color-enhanced scanning electron micrograph showing Salmonella typhimurium (red) invading cultured human cells.

Salmonella is actually a group of bacteria that can cause diarrheal illness in humans. They are microscopic living creatures that pass from the feces of people or animals to other p... Read More

An alternate view of amoebae fruiting bodies, with spores and bacteria.

An alternate view of amoebae fruiting bodies, with spores and bacteria. Related Story: Like Humans, Amoebae Pack a Lunch Before They Travel.

Some amoebae do what many people do. Before they travel, they pack a lunch.

In results of a study reported today in the journal Nature, evolutionary ... Read More

Colonies of Bacteria Do Battle - Paenibacillus dendritiformis

Poisons are unleashed when colonies of bacteria get too close, creating a toxic no-man's land in between.

Research by Eshel Ben-Jacob of the University of California, San Diego's, Center for Theoretical Biological Physics, Ben-Jacob of Tel Aviv University, Avraham Be'er of the University of T... Read More

Cyanobacteria Phormidium

Cyanobacteria (Phormidium) with the vital stain Sytox Green. Yellow/green cells are dead. Red is chlorophyll a fluorescence in live cells.

Photo Credit: Barry H. Rosen, USGS

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Escherichia coli showing flagella

This is a colorized transmission electron micrograph of Escherichia coli O157:H7. Transmission electron micrograph of E. coli O157:H7 showing flagella. Pseudoreplica technique.

E. coli O157:H7 was first recognized as a cause of illness in 1982 during an outbreak of severe bloody diarrhea; the... Read More

Scanning electron micrograph of a new genus of beta-Proteobacteria responsible for the degradation of organic oxalate waste produced by Bayer processing

A new genus of beta-Proteobacteria has been isolated from bioreactors treating oxalate wastes that are produced by Bayer refining of bauxite into alumina. The bacteria are indigenous to the alumina refinery environment and are capable of removing up to 40 tonnes of oxalate wastes produced on sit... Read More

Nipah virus virions, related to Hendra virus

This transmission electron micrograph (TEM) depicted a number of Nipah virus virions that had been isolated from a patient's cerebrospinal fluid (CSF) specimen.

Nipah virus is a member of the family Paramyxoviridae, and is related, but not identical to Hendra virus. Nipah virus was initially ... Read More

Mycobacterium tuberculosis culture

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

Pseudomonas aeruginosa

This colorized version depicts a scanning electron micrograph (SEM) of a number of Pseudomonas aeruginosa bacteria.

Pseudomonas aeruginosa is a gram-negative, rod-shaped, asporogenous, and monoflagellated bacterium that has an incredible nutritional versatility. It is about 1-5 µm in length ... Read More

A single virus particle, or “virion”, of measles virus

This thin-section transmission electron micrograph (TEM) revealed the ultrastructural appearance of a single virus particle, or “virion”, of measles virus. The measles virus is a paramyxovirus, of the genus Morbillivirus. It is 100-200 nm in diameter, with a core of single-stranded RNA, and is c... Read More

Aspergillus sp. organisms

Magnified 562X this photomicrograph, stained using an “Aspergillus” conjugate fluorescent antibody (FA) staining technique, revealed the presence of Aspergillus sp. organisms, in a case of aspergillosis.
What is Aspergillus?

Aspergillus is a fungus (or mold) that is very common in the enviro... Read More

Hartmannella vermiformis as it entraps a Legionella pneumophila bacterium

This electron micrograph depicts an amoeba, Hartmannella vermiformis (orange) as it entraps a Legionella pneumophila bacterium (green) with an extended pseudopod.

After it is ingested, the Legionella pneumophila bacterium can survive as a symbiont within what then becomes its protozoan host. ... Read More

Acinetobacter baumannii

This SEM depicts a couple of clusters of aerobic Gram-negative, non-motile Acinetobacter baumannii bacteria as seen under a magnification of 12,739x.

Members of the genus Acinetobacter are nonmotile rods, 1-1.5µm in diameter, and 1.5-2.5µm in length, becoming spherical in shape while in their... Read More

Human Immunodeficiency Virus (HIV-1)

This scanning electron micrograph revealed the presence of the human immunodeficiency virus (HIV-1), (spherical in appearance), which had been co-cultivated with human lymphocytes. Note the lymphocyte in the lower left, and some of its extended pseudopodia. HIV-1 virions can be seen on the surfa... Read More

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