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phytoplankton seem from space

In this Envisat image, a phytoplankton bloom swirls a figure-of-8 in the South Atlantic Ocean about 600 km east of the Falkland Islands.

During this period in the southern hemisphere, the ocean becomes rich in minerals from the mixing of surface waters with deeper waters. Phytoplankton depen... Read More

Staphylococcus aureus

Gram-stained Staphylococcus aureus. (approx. X 1000). taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Micrococcus luteus

Under a high magnification of 21930x, this scanning electron micrograph (SEM) depicted some of the ultrastructural morphologic features displayed by this group of Gram-positive Micrococcus luteus bacteria. The specimen was obtained from a pure culture that was raised on a polycarbonate filter, f... 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

Gram-negative Haemophilus influenzae bacteria

This photograph depicts the colonial morphology displayed by Gram-negative Haemophilus influenzae bacteria, which was grown on a medium of chocolate agar, for a 24 hour time period, at a temperature of 37°C.

Invasive disease caused by Haemophilus influenza type-b can affect many organ systems... Read More

Nikon's Small World 2012 - Sonderia sp. (a ciliate that preys upon various algae, diatoms, and cyanobacteria) (400x)

Nikon's Small World 2012 Photomicrography Competition

Dr. Diana Lipscomb
George Washington University
Department of Biological Sciences
Washington, District of Columbia, USA

Subject Matter:
Sonderia sp. (a ciliate that preys upon various algae, diatoms, and cyanobacteria) (400x)

Tec... 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

Absidia corymbifera

Absidia corymbifera. Sporangia and sporangiophore in vitro. LCB stain Read More

Aspergillus glaucus

Aspergillus glaucus. Sporulation (205X) Read More

XMRV in human respiratory tract

An important question about the retrovirus XMRV, which has been implicated in prostate cancer and chronic fatigue syndrome, is where the virus replicates in humans. Such information would provide clues about how infection might be transmitted. To date the virus has been detected in malignant pro... Read More

Plasmodium malariae

Plasmodium malariae band form trophozoite (1000X) Read More

Tissue specimen showing spirochete

Tissue specimen showing spirochete (Treponema pallidum) (970X). Taken from the Wistriech Collection, appearing exclusively on MicrobeWorld. Read More

Gram-negative rods

Gram-negative rods –Pseudomonas aeruginosa species (approx X1000). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Parasitic Fungus Phragmidium tuberculatum on a rose leaf

Colorized scanning electron micrograph of rust on a rose leaf. Rose rust is a disease specific to roses and is caused by the parasitic fungus Phragmidium tuberculatum and some other closely related species. This disease occurs during spring and persists until the leaves fall. This images shows r... Read More

Zoonotic villians #3

See those round, fuzz-ball looking things? You're seeing Lassa fever, up close & personal courtesy of a TEM microscope.
Another of those fearsome hemorrhagic fevers, Lassa virus is a member of the Arenaviridae family.
If you learn nothing more about Lassa fever, learn about Aniru Conteh.
F... Read More

Rabies bonus feature/Thank you to L. Pastuer

Louis Pastuer - not just the guy whose responsible for your milk (and orange juice, beer, almonds, ciders, soy sauce, & about a dozen other products) being cooked @ high temps to make them last longer - but a brilliant scientific mind whose researches into disease prevention has saved countless ... Read More

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

Diatom Arachnoidiscus

This is a live image of the of Diatom Arachnoidiscus under 40x magnification. The picture shows the diatom's silicified cell wall, which forms a pillbox-like shell (frustule) composed of overlapping halves that contain intricate and delicate markings. The picture was obtained with new video enha... Read More

Normal mouse trachea

Normal mouse trachea as shown by SEM. Note ciliated and serous cells Read More

Trichophyton rubrum var. granulare

This photograph depicts the frontal view of a Petri dish within which fungal colonies of Trichophyton rubrum var. granulare had been cultured. Revealed is the colonial morphology, which in the case of T. rubrum is said to be waxy, glaborous, i.e., flat to cottony, and display from a frontal pers... Read More

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