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A Microbial Hallowe'en, Part II

Here I try to bring microbiology into Hallowe'en with costumes in class, and some bioluminescent microbial art of famous microbiologists! Read More

Mycobacterium tuberculosis culture

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

Dung fungi found on a cow pile

Specimen: Dung fungi found on a cow pile
Technique: Epi-illumination, 20 stacked images

Credit: Mr. Mike Crutchley, Pembrokeshire, Wales, United Kingdom - Olympus BioScapes Read More

Mold mycelium

A contaminant (mold mycelium) on a Serratia streak plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Simple intervention can moderate anti-vaccination beliefs, study finds

CHAMPAIGN, Ill. -- It might not be possible to convince someone who believes that vaccines cause autism that they don't. Telling skeptics that their belief is not scientifically supported often backfires - strengthening, rather than weakening, their anti-vaccine views. But researchers say they h... Read More

New resource makes gene-editing technology even more user friendly

Researchers at Harvard University and the University of California, San Diego, have developed a new user-friendly resource to accompany the powerful gene editing tool called CRISPR/Cas9, which has been widely adopted to make precise, targeted changes in DNA. This breakthrough has the potential t... Read More

Infected guinea pig eye Shigella - Sereny test

Infected guinea pig eye Shigella - Sereny test Read More

Colonies of Alcaligenes

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

Halloween microbes

Strep agalactiae (Group B Strep) streaked out on Granada plates. Usually this media is used to screen for Group B in pregnant patients, the strep will grow as bright orange colonies while any other growth will be colorless. Perfect for a little Halloween fun...follow me on instagram @stylish_str... Read More

Red blood cell infected with malaria parasites

Colorized electron micrograph of red blood cell infected with malaria parasites (blue). The small bumps on the infected cell show how the parasite remodels its host cell. Uninfected cells (red) have smoother surfaces.
Credit: NIAID/RML

Related story: "Scientists Find Genetic Basis for Key Pa... Read More

Ecological Genomics of Reef Corals

Young sibling polyps of staghorn coral (Acropora millepora) three days after settlement. In a National Science Foundation-supported study, researchers found that the ability to fluoresce may influence whether or not the coral settle on the reef of their origin or disperse, and go elsewhere.

M... Read More

6.5% NaCl Media

Important ingredients: 6.5% salt, dextrose, bromcresol purple
Differential/Selective: used to test for salt tolerance and can be used to identify enterococcal group D streptococci. NaCl is a selective agent and those organisms that can grow in higher salt concentrations also ferment the dextro... Read More

Scary Movie?

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

Stopping Candida in its tracks

Scientists are one step closer to understanding how a normally harmless fungus changes to become a deadly infectious agent. Read More

Viruses thrive in big families, in sickness and in health

SALT LAKE CITY - The BIG LoVE (Utah Better Identification of Germs-Longitudinal Viral Epidemiology) study, led by scientists at the University of Utah School of Medicine, finds that each bundle of joy puts the entire household at increased risk for infection with viruses that cause colds, flu, a... Read More

Aspergillus restrictus

Aspergillus restrictus from generalized aspergillosis. Note radiating hyphae in granuloma Read More

Beautiful image of different microbes in CLED medium

This image results from a project called "Initiation to microbiology investigation" accomplished by young students, where they collected a sample from a table surface and by inoculation they put it in CLED (cystine lactose electrolyte deficient) medium. Beautiful colonies of bacteria and fungu... Read More

Tiny Ocean Microbes are Brightening Up the Sky

Phytoplankton may be microscopic, but that doesn’t mean we can’t see them. Just look up: These little critters are brightening up cloudy days around the world. Read More

Worm sperm motility

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

It takes a village... to ward off dangerous infections? New microbiome research suggests so

ANN ARBOR, Mich. -- Like a collection of ragtag villagers fighting off an invading army, the mix of bacteria that live in our guts may band together to keep dangerous infections from taking hold, new research suggests. Read More
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