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Cheek cell with bacteria

Simple stain- single human cheek cell with bacteria covering its surface (approx. X 100). Taken from the Wistreich Collection, appearing exclusively in MicrobeWorld. Read More

Scanning electron microscopy of Staphylococcus epidermidis cluster embedded in exopolysaccharide matrix

The Gram-positive bacteria Staphylococcus epidermidis and Staphylococcus aureus are the most common pathogens in hospital-acquired infections. The costs related to infections caused by these strains in the hospital setting are enormous and represent a major healthcare burden. Furthermore, the mo... Read More

Yeast cells (Saccharomyces) and bacterial rods (Bacillus subtilis)

Unstained, temporary wet mount showing size relationship between yeast cells (Saccharomyces) and bacterial rods (Bacillus subtilis). (approx. X 100). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Campylobacter bacteria

Campylobacter bacteria are the number-one cause of food-related gastrointestinal illness in the United States. To learn more about this pathogen, ARS scientists are sequencing multiple Campylobacter genomes. This scanning electron microscope image shows the characteristic spiral, or corkscrew, s... Read More

Leukemia treatment - immune system T-cells (center) binding to beads which cause the cells to divide

This microscopy image provided by Dr. Carl June, shows immune system T-cells, center, binding to beads which cause the cells to divide. The beads, depicted in yellow, are later removed, leaving pure T-cells which are then ready for infusion to the cancer patients. Scientists are reporting the fi... Read More

Euglena species

Microscopic view of a swarm of Euglena species. (approx. X 100). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Spirogyra and Oscillatoria

A microscopic view of Spirogyra (eukaryote) and Oscillatoria (prokaryote). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Little brown bat: White-nose fungus

Little brown bat; close-up of nose with fungus, New York, Oct. 2008.
Credit: Photo courtesy Ryan von Linden/New York Department of Environmental Conservation

What is white-nose syndrome?
In February 2006 some 40 miles west of Albany, N.Y., a caver photographed hibernating bats with an unusu... Read More

Spirogyra filament

A clear view of a Spirogyra filament showing the spiral chloroplast. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Spirogyra filaments

Microscopic view of a large numbers of Spirogyra filaments. (approx 100X). Taken from the Wistreich Collection, appearing exclusively in MicrobeWorld. Read More

Charleston Bump Expedition. Curly worm.

Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Southeast of Charleston, South Carolina
Photo Date: 2003 August 10
Photographer: Jerry McLelland, Univ. of Southern Mississippi
Credit: Charleston Bump Expedition 2003. NOAA Office of Ocean Exploration; Dr. George Sedberr... Read More

Spirogyra filament

Microscopic view of the green algae Spirogyra filament and a number of primitive worms known as rotifers. (approx. 100X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Avian Influenza A H5N1

Colorized transmission electron micrograph of Avian influenza A H5N1 viruses (seen in gold) grown in MDCK cells (seen in green).
Avian influenza A viruses do not usually infect humans; however, several instances of human infections and outbreaks have been reported since 1997. When such infecti... Read More

Rockweed algae

Rockweed algae on rocks in cold ocean water. From the Wistreich Collecction, appearing exclusively on MicrobeWorld. Read More

Salmonella enteritidis

Salmonella is a gram-negative, rod-shaped bacilli that can cause diarrheal illness in humans. They are microscopic living creatures that pass from the feces of people or animals to other people or other animals.

The Salmonella family includes over 2,300 serotypes of bacteria which are one-cel... Read More

Mixed lichens

A mixture of lichens. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Colorized low-temperature electron micrograph of a cluster of E. coli bacteria

Individual bacteria in this photo are oblong and colored brown. As an alternative to using antibiotics for fighting E. coli infections in newborn and weaned pigs, scientists are finding promising results from introducing mixes of beneficial bacteria, obtained from other pigs, into the gut of you... Read More

Fruticose lichen

A fruticose (leaflike) lichen. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

The sporulating fungus, Beauveria Bassina, on TPB (Tarnished Plant Bug) cadaver.

Application of the mycopathogen, Beauveria Bassina, that make spores to introduce a fungus on tarnished plant bugs as an alternative to chemical control. Research and develop microbial control strategies for tarnished plant bugs on alternate hosts using entomopathogenic fungi.

(http://www.ars... Read More

Orange pigmented crustose lichens

Orange pigmented crustose lichens. From the Wistreich Collection. Read More
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