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Predictably beautiful

As the bacteria grow within a biofilm, they organize themselves into reproducible patterns and shapes that can be predicted with mathematical models.
Image: Confocal microscopy of a bacterial biofilm composed of Escherichia coli expressing the fluorescent proteins mCherry and sfGFP. The image w... Read More

Yersinia pestis

As a closer view of PHIL 12265, this photograph depicts the colonial morphology displayed by Gram-negative Yersinia pestis bacteria, which was grown on a medium of sheep's blood agar (SBA), for a 72 hour time period, at room temperature. Y. pestis is the bacterium responsible for causing the inf... Read More

Mucor sp. fungal organism

Under a magnification of 200x, and using a lactophenol cotton blue mount fixation technique, this photomicrograph reveals some of the ultrastructural morphology exhibited by a Mucor sp. fungal organism. This image depicts two sporangia, a mature structure, which had ruptured, releasing its conte... Read More

Oral bacterial colonies, including Capnocytophaga and Aggregatibacter

This color-enhanced photomicrograph shows different species of bacteria that cause dental plaque - a colorless film that forms on teeth caused by the growth of bacterial colonies. Plaque develops naturally, and in most cases can be easily removed with regular brushing. However, if left it can ha... Read More

Enterococcus faecalis

The bacterium, Enterococcus faecalis, which lives in the human gut, is just one type of microbe that will be studied as part of NIH's Human Microbiome Project. Read More

Klebsiella oxytoca on MacConkey Agar

An isolated Klebsiella oxytoca on MacConkey Agar from a patient with diarrhea. Look at its mucous appearance a characteristic of most Klebsiella. Read More

Wheat infected with ergot fungus

Confocal micrograph of wheat stigma hairs (blue) infected with ergot fungus (light pink). The stigma is the female part of the plant. The plant is fertilised by the (male) pollen grain, which sticks to a stigma hair causing growth of a pollen tube into the plant's ovary, causing an embryonic whe... Read More

it this synergism?

Pseudomonas aeruginosa. Imepinem did that wird zone next to ampicilin sulbactam. Wat phenomen are that? Its that synergism? And it wil have activity in vivo? Thnx


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antibacterial producing actinomycetes from sediments of the Caspian Sea

the results of this investigation revealed that the marine actinomycetes collected from the sediments of Caspian Sea
might be a potent source of novel antibiotics. Read More

Klebsiella pneumoniae

Large (about 5 mm in diameter), lactose positive colonies of Klebsiella pneumoniae on desoxycholate-citrate agar. Cultivation 37°C, 24 hours.

Klebsiella pneumoniae is a common source of hospital-acquired infections. Some of the strains can carry plasmids that harbour genes conferring resistan... Read More

HIV particles infecting a human T cell

Scanning electron micrograph of HIV particles infecting a human T cell. Credit: NIAID, NIH Read More

Euglena mutabilis

Living green alga Euglena mutabilis. Technique: Differential interference contrast. Credit: Gerd Gunther, Düsseldorf, Germany

Nikon Small World 2012 Honorable Mention. Read More

Bacteriophage P22

Cross-section through the center of a three-dimensional (3D) reconstruction of P22 phage, which is a virus that infects Salmonella bacteria. P22 contains many copies each of nine different viral proteins and a single copy of a double-stranded DNA genome (shown in green). The centrally located po... Read More

Fungus on toilet seat

Culturing microbes on nutrient plate and testing for different kind of microbes on specific environment areas. This inoculated nutrient plate that was left for a period of 14 days showed the present of a few different kind of fungus species. It’s common to think that the human palm contains more... Read More

A spore from the bacterium Bacillus subtilis

A spore from the bacterium Bacillus subtilis shows four outer layers that protect the cell from harsh environmental conditions.

Bacillus subtilis is a ubiquitous bacterium commonly recovered from water, soil, air, and decomposing plant residue. The bacterium produces an endospore that allows... Read More

Escherichia coli - tight junction disassembly

This pair of confocal micrographs demonstrates how a disease-causing strain of E. coli bacteria brings about diarrhoea by breaking down the waterproof barriers between the cells. The bacteria are seen as small red dots attached to the surface of intestinal cells making tiny pedestals out of one ... Read More

Infectious bronchitis virus (IBV) virions

This 1975 transmission electron micrograph (TEM) revealed the presence of a number of infectious bronchitis virus (IBV) virions, which are Coronaviridae family members, and members of the genus Coronavirus. IBV is a highly contagious pathogen, which infects poultry of all ages, affecting a numbe... Read More

Bio-luminescent microbes " Phytoplankton"

One of the most famous pictures of the Vaadhoo Island comes from a night where dots of light seemed to float to the shore. They made the cost look like it was covered in stars.
At night, it is not uncommon for Bio-luminescent microbes called Phytoplankton to be seen along the coast, though even... Read More

Proteus mirabilis colonies

Proteus mirabilis colonies on depleted medium in false color by Sune Dano and Kasper Dyring-Anderson. From Dr. James Shapiro's lab where he studies bacterial genetics, and is interested in pattern formation during colony growth. Photo from microbialart.com

Dr. James Shapiro is a Professor in ... Read More

Missing Carl Woese---RIP!

I comment a bit, as an educator, about the loss of Carl Woese. Not only the importance of his discoveries, but how he went about his work, remains of great value. Read More

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