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Behind the scenes: Recording TWIM 40 at Cold Spring Harbor Laboratory

Here are photographs I took during our visit to Cold Spring Harbor Laboratory to record This Week in Microbiology #40. We roamed around campus scouting locations befo... Read More

A Microbial Hallowe'en, Part I

My mathematician wife "painted" onto a marine nutrient plate using a bioluminescent bacterium---as you can see, she loves Einstein. And I love microbiology. Hence the intersection! Read More

Supernova bacteria

Bacteria engineered to act as genetic clocks flash in synchrony. Here, a "supernova" burst in a colony of coupled genetic clocks just after reaching critical cell density. Superimposed: A diagram from the notebook of Christiaan Huygens, who first characterized synchronized oscillators in the 17t... Read More

The Hershey-Chase food blender

Should you ever visit Cold Spring Harbor Laboratory on Long Island, New York, be sure to go see the food blender that was used to carry out the well known Hershey-Chase experiment. The blender is located in the Szybalski Reading Room of the Carnegie Library. After entering the front door of the ... Read More

Micrococcus lutea

Circular, entire, smooth, yellow colonies of Micrococcus lutea. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Telophase HeLa (cancer) cells expressing Aurora B-EGFP

Telophase HeLa (cancer) cells expressing Aurora B-EGFP (green) (100X), Deconvolution. 36th annual Nikon Small World competition 11th place photography winner.

Paul D. Andrews, University of Dundee, Dundee, Scotland, UK Read More

Haematococcus pluvialis

Phase contrast image of fresh water unicellular algae Haematococcus pluvialis colelcted at 100X. This species is well known for its high content of the strong antioxidant astaxanthin, which is important in aquaculture, various pharmaceuticals, and cosmetics. Fourth Prize, 2009 Olympus BioScapes ... Read More

Pulsating response to stress in bacteria

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

Whole genome analysis of Chlamydia trachomatis highlights risks with current method of tracking

In a study released today in Nature Genetics, researchers have found that Chlamydia has evolved more actively than was previously thought. Using whole genome sequencing the researchers show that the exchange of DNA between different strains of Chlamydia to form new strains is much more common th... Read More

Methicillin-resistant Staphylococcus aureus

Scanning electron micrograph of methicillin-resistant Staphylococcus aureus and a dead human neutrophil. Credit: National Institutes of Health/Department of Health and Human Services (NIAID). Read More

A dangerous bridge for Serratia.

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

Arsenic Tolerant Plant

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

Anopheles gambiae (mosquito) heart

Malaria’s impact worldwide is still an issue, particularly in developing countries. Research is ongoing to study the carriers of malaria, mosquitoes, and how they carry and transmit the disease and other pathogens. That’s why the 2010 winning image by Jonas King is so important to the life scien... Read More

Diatoms

2009 Nikon Small World Competition award 10th place: Leave it to the diminutive diatoms to bring out algae's best side. Only 10 times larger than life, this image was captured via dark-field by Arlene Wechezak in Anacortes, Wash. Such diatoms have been proposed as a key biofuel source of the fut... Read More

Malabaricus Grouper Nervous Necrosis Virus

The foreground shows the density map (gold) from a cryoelectron micrographic reconstruction of malabaricus grouper nervous necrosis virus, a fish nodavirus. The background shows the fitting of a two-domain model consisting of a protruding domain and a β-sandwich domain into the reconstruction de... Read More

Craterium minutum

Fluorescent image of the sporangium, an enclosure in which spores are formed, of the slime mold Craterium minutum. Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®. Credit: Dr. Dalibor Matýsek, Mining University - Technical University of Ostrava, Ostrava, Czech Republic Read More

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

HELICOBACTER

Helicobacter pylori (yellow), a common bacterium that lives in the stomach lining, increases the risk of stomach cancer (brown cells) and peptic ulcers. But over time H. pylori can reduce stomach acid and acid reflux, which may help fend off esophageal cancer. The microbe also appears to help pr... 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

Sebaldella termitidis bacteria

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

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