MicrobeWorld

Swarm of paramecia surrounding an unidentified protozoan. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

This is a magnified view of an Arabidopsis thaliana leaf eight days after being infected with the pathogen Hyaloperonospora arabidopsidis, which is closely related to crop pathogens that cause 'downy mildew' diseases. It is also more distantly related to the agent that caused the Irish potato fa... Read More

Non-acid-fast rods. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

An I Can Haz Cheezburger meme for ASM's General Meeting in San Francisco created by artist Michele Banks. Read More

Circular, opaque colonies on the surface of a nutrient agar plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Irregular, concentric, undulate, opaque colonies on the surface of a nutrient agar plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

What looks like a Native American dream catcher is really a network of social interactions within a community. The red dots along the inner and outer circles represent people, while the different colored lines represent direct contact between them. All connections originate from four individuals... Read More

If we can visualize a protein's shape, we can learn much more about how it functions and how we might block its activity. This was the guiding principle behind an NIH initiative launched 25 years ago to spur the discovery of HIV-related protein structures. Structures produced through the program... Read More

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

Serratia marcescens streaked on a DNA plate and incubated for 48 hours at room temperature. Read More

This transmission electron micrograph (TEM) depicts some of the ultrastructural details displayed by H3N2 influenza virions responsible for casing illness in Indiana and Pennsylvania in 2011.

The cases of human infection with swine-origin H3N2 influenza resulted from existing influenza virus... Read More

Photo taken by Joshua Yospyn for WJLA TV at the We Can End AIDS march in Washington, D.C. Read More

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

A single Vorticella species. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

One of many varieties of colorful lichens that grow on Ocotillo along the coast of Baja, Calif.

Lichens are actually made up of two plants: an algae and a fungus, living in a symbiotic relationship. In desert environments, lichen will dry out completely and remain dormant until rain or dewfal... Read More

Snottites have captivated cave-goers and scientists alike since the earliest publication on cave microbes by Hoeg in 1946. These biofilms cover the walls with a thick snot-like film, from which they derive their particularly appropriate name. A variety of cave systems, the Frasassi caves in Ital... Read More

Cell showing overproduction of the ARTS protein (red). ARTS triggers apoptosis, as shown by the activation of caspase-3 (green) a key tool in the cell's destruction. The nucleus is shown in blue.

Sarit Larisch and Hermann Steller, Rockefeller University Read More

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

Like a major city, our cells use a complex transportation network to deliver molecular goods to different destinations. A protein called kinesin (blue) is in charge of moving cargo around inside cells and helping them divide. It's powered by biological fuel called ATP (bright yellow) as it scoot... Read More

Dictyostelium discoideum is a soil-living amoeba. A group of 100,000 form a mound as big as a grain of sand.

The hereditary information is carried on six chromosomes with sizes ranging from 4 to 7 Mb resulting in a total of about 34 Mb of DNA, a multicopy 90 kb extrachromosomal element that h... Read More