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THESE YEAST CELLS SAY ‘HI’ AND OTHERS RESPOND

Scientists have engineered yeast cells that can “talk” to one another using a versatile plant hormone called auxin.

Typically, these simple fungal cells (Saccharomyces cerevisiae) usually do their jobs—making bread rise or converting sugar into alcohol—without having to communicate or work to... Read More

Blastomyces dermatitidis

Blastomyces dermatitidis. Yeast from tissue smear. Gomori methenamine silver nitrate stain. (400x) Read More

Ice Nucleation Bacteria, Twitter, and Me!

In this post from my microbiology/education blog, I discuss a post on Boing Boing recently that used a video I had made of ice nucleation bacteria. Ice nucleation bacteria are very interesting of course, and I link to the Boing Boing post. In addition, I provide an additional video of students... 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

Sonderia sp.

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

High rate of Texas bugs carrying Chagas disease

A deadly parasite that causes Chagas disease is widespread in a common Texas insect, according to a new study by University of Texas at El Paso (UTEP) researchers. The finding suggests that the risk of Texans contracting the disease may be higher than previously thought. Read More

Pseudomonas aeruginosa with black extracellular pigment

Pseudomonas aeruginosa isolated from sputum into department of Microbiology - Riuniti Hospital Reggio Calabria .
This strain of Pseudomonas secretes brown/black extracellular pigment: pyomelanin.
Photo from D'Aleo Francesco archive. Read More

Mini Microbe Portraits From the Micropolitan Museum

Tired of the portraits, landscapes and abstract art that peppers the walls of most art museums? According to Dutch photographer Wim von Egmond, there’s one art subject that has been ignored for centuries and finally deserves its due: microscopic organisms.

As the head of the Inst... Read More

actinomycetes

15 days old culture of chalky actinomycetes on Starch Casein Agar. Isolated from soil of soil of ground of Central Department of Microbiology, Trubhuvan University, Nepal.
Incubation temperation: 30 degree celsius. Isolated for testing potential for antibiotic production.

Sabita Ghimire, s... Read More

Fungi at root of plant drugs that can help, or harm, sick monarch butterflies

Previously, biologists at Emory University and the University of Michigan discovered that butterflies use plant toxins as a drug to cure their offspring of parasitic infections. Now they've dug a little deeper and found that the fungi associated with the roots of milkweed plants change both the ... Read More

Slime producing Staphylococcus epidermidis on Congo Red agar

Slime production by Staphylococcus epidermidis on Congo Red agar; demonstrated by black colored colonies. Slime production is one of the most important virulence factors produced by Coagulase negative Staphylococci.

The colonies of slime non-producing strains remain pink to red.
Read More

In very ill, probiotics don't prevent 'superbugs' from colonizing intestinal tract

Compared with routine medical care, probiotics administered to critically ill patients in intensive care units showed no benefit in preventing the colonization of drug-resistant microbes in the intestinal tract, according to new research at Washington University School of Medicine in St. Louis. Read More

Mycoplasma pneumoniae

Mycoplasma pneumoniae. Macrophotograph of 16mm petri dish containing micro-colonies (spherules) characteristics of broth-grown Mycoplasma pneumoniae Read More

Swarm of paramecia surrounding an unidentified protozoan

Swarm of paramecia surrounding an unidentified protozoan. From the Wistreich Collection. Read More

Salmonella sp.

Salmonella sp. on XLT4 agar and Miller Mallinson Agar Read More

Histoplasma capsulatum

Histoplasma capsulatum in gingival tissue. GMS stain. (400X) Read More

H1N1 Influenza Virus Particles

Colorized transmission electron micrograph showing H1N1 influenza virus particles. Surface proteins on the virus particles are shown in black. Credit: National Institutes of Health/Department of Health and Human Services (NIAID). Read More

Yellow Unknown Yeast

Unknown yeast isolated on TSA from a swab taken from the bottom of a shoe incubated at 25 degrees C. Yellow, mucoid, round colonies were seen after 2 weeks. This isolate grew equally well at 37 degree C with a growth time of ~ 1 week. Read More

You'll Want To Wash Your Hands Immediately After Reading This (Infographic)

Germaphobes, maybe you're on to something.

Sickness-causing bacteria and viruses can lurk on surfaces long after they're expelled in an infected person's sneeze or snot. Some can even stay on a surface for months, given the right conditions. While the ability of these microorganisms to actual... 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
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