A microscopic view of Spirogyra (eukaryote) and Oscillatoria (prokaryote). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
Blastomyces dermatitidis. Yeast from tissue smear. Gomori methenamine silver nitrate stain. (400x) Read More
Electron micrograph of type 4 Streptococcus pneumoniae adherent to pharyngeal epithelial cell Read More
At this point, after finding microorganisms that don’t mind extreme temperatures, pressure, aridity and other hardships, we shouldn’t be surprised that bacteria’s dominion over the Earth extends to just about anywhere we look. A new expedition to the Earth’s crust has reached unprecedented depth... Read More
This image depicts the quantitative difference in hemolytic reactivity seen in a trypticase soy agar culture plate containing 5% sheep’s blood growing group-D Streptococci (left wedge), group-B Streptococci (middle wedge), and group-A Streptococci (right wedge) bacteria. This plate was grown u... Read More
By attaching fluorescent proteins to the genetic circuit responsible for B. subtilis's stress response, researchers can observe the cells' pulses as green flashes.
In response to a stressful environment like one lacking food, B. subtilis activates a large set of genes that help it respond to ... Read More
Swarm of paramecia surrounding an unidentified protozoan. From the Wistreich Collection. Read More
Quantitative precipitin test. Constant antibody with 2-fold increase in antigen concentration. Note inhibition in antigen excess and precipitation in equivalence zone. Read More
This is an Portuguese Hard Tick´s unpublished image, taken on a Parasitology class, at Faculty of Pharmacy, University of Lisbon. Here we can see the three mouthparts components: the highly mobile palps are the two outside jointed parts ; the center rod-shaped structure, the hypostome, is pro... Read More
Basidiobolus haptosporus. Hypha in subcutaneous phycomycosis granuloma. Read More
Serratia spp. are widely distributed in nature. Serratia marcescens is the most common Serratia sp. associated with human disease, followed by strains of the S. liquefaciens complex: S. liquefaciens, S. grimesii and S. proteamaculans. The clinical significance of these species is largely unknown... Read More
Wired magazine has put together an 8-part image gallery that matches the extremophile microbe with it's environment.
"Once upon a time, scientists routinely found life in places where it wasn’t supposed to exist. That doesn’t happen anymore, and not because the pace of discovery has s... Read More
The sporophyte of the fern Pteris vittata, which tolerates and accumulates very high levels of the deadly toxin arsenic. Researchers from Purdue University have identified a gene (ACR3) from P. vittata that is necessary for the plant's tolerance to arsenic.
Jody Banks, professor of botany an... Read More
photograph of carcass of swine showing lesions of swine erysipelas (b&w) Read More