MicrobeWorld

Mycobacterium Xenopi. One Colony of each of three different strains Read More

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

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

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

Cladosporium trichoides hyphae in brain abscess. Case of Dr. Barnola. PAS stain. Human Read More

Conidia and secondary budding of Exophiala jeanselmei. LCB stain Read More

Bromocresol fermentation tubes (escherichia coli). note acid (yellow) and gas (bubble) Read More

Two worm sperm shimmy across a microscope slide. Unlike most cells that rely on motor proteins to propel themselves forward, worm sperm use tiny fibers at their front ends. Putting the fibers together and taking them apart sets the cells in motion. In a new advance, researchers disassembled the ... Read More

Click source to view photos of the development of a smallpox immunization lesion on a listener of This Week in Virology's arm. Read More

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

Immunoelectrophoresis. Wells 1 and 2 rabbit serum, Wells 3 rabbit gammaglobulin, trough 1 and 3 antirabbit serum, trough 2 anti-gamma-globulin Read More

Cryptococcus neoformans in sputum. India ink (400X) Read More

“Predator” bacteria (green) surround “prey” bacteria (red) in this petri dish version of the Serengeti. Rather than eating their prey, however, predator cells release a chemical that activates a suicide gene in the prey. Prey cells also release a chemical, but one that promotes survival of the p... Read More

Genus Serratia presents special problems of identification because of biochemical and morphological similarity to other genera of the Enterobacteriaceae, notably Klebsiella and Enterobacter. Serratia liquefaciens is an opportunistic pathogen which is capable of colonizing a wide variety of surfa... Read More

Microsporum canis macroconidium. Unstained interference phase (1000X) Read More

Freelance photographer Nicola “Okin” Frioli has taken a collection of photographs/portraits of people wearing surgical masks in Mexico City. It's an interesting art project that looks at the impact swine flu has on the city's residents. Read More

Sonderia sp. (a ciliate that preys upon various algae, diatoms, and cyanobacteria)

2012 Nikon Small World Photomirography Competition Dr. Diana Lipscomb, George Washington University, Department of Biological Sciences, Washington, District of Columbia, USA Read More

Exophiala jeanselmei. Some conidiophores are very short lateral pegs on hyphae. LCB stain Read More

This digitally-colorized scanning electron micrograph (SEM) depicted a small grouping of Gram-negative Sebaldella termitidis bacteria.
Recently, “the genome of ATCC 33386 S. termitidis was recently sequenced as part of the U.S. Department of Energy - Joint Genome Institute’s (DOE-JGI) Genomic E... Read More

There is a new set of photographs on the Small Things Considered blog that are quite interesting. All of them look as if they originate from the 1950's to 1960's decades. ... Read More