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Getting Started with MicrobeWorld

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Creative "Extra Credit" Projects in Microbiology!

In this blog entry, I explore how students can use their creativity to learn microbiology in innovative and often artistic ways. It makes learning more personal! 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

Study adds to evidence that viruses are alive

CHAMPAIGN, Ill. -- A new analysis supports the hypothesis that viruses are living entities that share a long evolutionary history with cells, researchers report. The study offers the first reliable method for tracing viral evolution back to a time when neither viruses nor cells existed in the fo... Read More

Agar Art 2016 Contest Submit by May 6

We hope you've started plating your dishes! Here are some of the 2016 entries thus far. Show us your creative streaking! For contest entry rules visit: www.microbeworl.org/art. Submissions close May 6, 2016 11:59 P.M.EST.Entries pictured from left to right: Symbol of ASM, A Once in a Lifetime Ki... Read More

A Candida Fourth of July

Candida species on a Candida CHROMagar plate wishes you a happy and safe Fourth of July!
Author: Xiao Hui Lau Read More

Stopping malaria in its tracks

A new drug acts as a roadblock for malaria, curing mice of established infection, according to a study in The Journal of Experimental Medicine. Treatment was not associated with obvious side effects, suggesting that the drug may also be safe and effective in humans. Read More

Multidrug resistance Pseudomonas aeruginosa

Pseudomonas aeruginosa is one of the most notorious organisms that have brought the therapeutic dilemmas to clinicians as well as challenge to microbiologist throughout the world. It carries gene of intrinsic resistance (AmpC cephalosporinase, the OprD outer membrane porin, and the multidrug ef... Read More

microorganism TREE

This tree is made up of Streptococus pneumoniae (as the leaves)and Candida albicans (as the trunk),cultured on a chocolate agar incubated 24hours under 5% CO2 condition.
S.pneumoniae is a alpha hemolytic organism producing green colour colonies while C.albicans produce 'feet'around the margin o... Read More

Streptococcus pneumoniae

Electron micrograph of type 4 Streptococcus pneumoniae adherent to pharyngeal epithelial cell Read More

Exophiala dermatitidis morphology

Colonies are initially black and yeast-like, becoming suede-like, olivaceous grey and mould-like with age. This photo show the morphology of colony after a week.

Credits: F. d'Aleo - B. Rogolino - A. Barbaro
Ospedale Bianchi Melacrino Morelli - Unità di Microbiologia Read More

Kirby-Bauer Testing: The Gold Standard for AST

Our sensitivity instruments rarely ever go down, but when they do our lab uses Kirby-Bauer testing to perform antimicrobial susceptibility testing in our laboratory. This testing involves placing antibiotic-infused discs on a standardized inoculum of bacteria spread in a lawn onto a Mueller Hint... Read More

M. luteus/E.coli

Streak plate isolation of Micrococcus and E. coli mixed culture. Read More

MRSA on Spectra agar

Pictured here are blue colonies of Methicillin-resistant Staphylococcus aureus (MRSA) growing on Remel Spectra MRSA medium. Spectra media contains a chromogen that yields a blue color as a result of phosphatase activity. The phosphatase enzyme is present in many staphylococci, including Staphylo... Read More

Bacillus cereus Biofilm viewed under microscope

Bacillus cereus, a food-borne pathogen, is capable to form biofilms. Biofilms are microbial communities that are controlled by a biological mechanism called quorum sensing. In this image, the B. cereus biofilm was viewed under microscope using LPO and grown in microtiter plate well for 48 hrs of... Read More

"The Unseen World"

Philadelphia artist Kate Kaman (www.katekaman.com) has designed a dynamic larger-than-life sculptural depiction of the most plentiful and ancient microscopic life forms -- bacteria. Suspended throughout an area measuring approximately 130 feet long, 27 feet wide and 41 feet tall, “The Unseen Wor... Read More

Bacteria biofilm

This confocal micrograph, taken as part of a synthetic biology project, shows Bacillus subtilis, a Gram-positive, rod-shaped bacterium that is commonly found in soil. Distinct lineages of bacteria expressing different fluorescent proteins were initially mixed randomly on a petri dish. As the bac... Read More

New Use for Well-known Algae

Shock! Horror! Some treasured molecular paleoenvironmental tools of organic biogeochemists—namely the alkenones, an esoteric group of long-chained compounds made by aquatic microalgae—are being put forward by O’Neil et al.1 as candidates for conversion to jet fuel on an industrial scale! (See... Read More

STREPTOCOCCUS

A colorized electron microscope image captures delicate chains of streptococcus in a laboratory sample. Though some strep infections can be deadly, many strains are harmless—among the thousands of benign beings that make their home in our bodies.

Photograph by Martin Oeggerli, with support fr... Read More

GUT TRANSIT TIME CHANGES WITH ‘TRAVELER’S DIET’

To better understand the importance of gut bacteria in human health, researchers measured the time it takes food to move through the gastrointestinal tract, called gut motility, in mice—in a way that mimics the dietary effects of world travel. Read More

Gram-negative rods – Morganella morganii species

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