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What Gut Bacteria Might Have To Do With Colorectal Cancer Risk

While genetics likely play a role in some instances of colorectal cancer, a new study in mice suggests gut bacteria could also influence development of intestinal tumors. Researchers from the Icahn School of Medicine at Mount Sinai found that giving antibiotics to mice to disrupt their microbial... Read More

Why Do Bacteria Thrive in Space?

For reasons that still aren't well understood, bacteria proliferate in microgravity. Creating a potential recipe for disaster for humans stationed in space for long periods, bacteria's love of low-g also raises an intriguing question: Why are they so comfortable there?

Click on source for ful... Read More

A Cheap, Promising Way to Filter Water: Through A Twig

One way to avoid getting sick while traveling is to only eat fruit that you peel yourself, since plants can filter out bacteria and prevent it from traveling throughout their tissues. Well, why not apply this principle to filtering water directly? A team of scientists have done just that, testi... Read More

Studies Show Big Advance In HIV Prevention

Exciting research suggests that a shot every one to three months may someday give an alternative to the daily pills that some people take now to cut their risk of getting HIV. The experimental drug has only been tested for prevention in monkeys, but it completely protected them from infection in... Read More

The Science of Cheese Is Weirder Than You Think

The science behind the transformation from plants to milk to cheese is amazing. In fact, cheese has much in common with wine and beer: They result from fermentation by microorganisms; they are “value-added” products where processing greatly increases the value; and they reflect local climate and... Read More

Pseudomonas paints a picture!

A student and I painted with bacteria and this is what happened! We used a method similar to that used by artist Sarah Roberts (UK) and microbiologist Simon Park.

Motility agar plates were prepared and painted with watercolor paint before inoculation with P. aeruginosa. After 7 days at room t... Read More

Gonorrhea Infections Start From Exposure To Seminal Fluid

Researchers have come a step closer to understanding how gonorrhea infections are transmitted. When Neisseria gonorrhoeae, the bacteria responsible for gonorrhea, are exposed to seminal plasma, the liquid part of semen containing secretions from the male genital tract, they can more easily move ... Read More

Mundo de los Microbios - Episodio 107 - Delfina Urbina

Uno de los patógenos más importantes en América Latina y seguramente el mundo entero, el rotavirus, es discutido en este episodio de La Radio El Mundo de los Microbios. La Prof. Delfina Urbina, con una larga trayectoria en diferentes áreas de la Microbiología nos visita hoy. Fué Profesora Tit... Read More

Pithovirus: Bigger than Pandoravirus with a smaller genome

A new virus called Pithovirus sibericum has been isolated from 30,000 year old Siberian permafrost. It is the oldest DNA virus of eukaryotes ever isolated, showing that viruses can retain infectivity in nature for very long periods of time. Read More

Giant virus resurrected from 30,000-year-old ice

In what seems like a plot straight out of a low-budget science-fiction film, scientists have revived a giant virus that was buried in Siberian ice for 30,000 years — and it is still infectious. Its targets, fortunately, are amoebae, but the researchers suggest that as Earth's ice melts, this cou... Read More

BacterioFiles Micro Edition 157 - Azotobacter Assists Algae

This episode: Nitrogen-fixing bacteria could provide nitrogen to algae in biotech processes!


(7.4 MB, 8 minutes)


Show notes: 
Journal... Read More

Disease-causing bacterial invaders aided by failure of immune system switch

Immune system defenses against dangerous bacteria in the gut can be breached by turning off a single molecular switch that governs production of the protective mucus lining our intestinal walls, according to a study led by researchers at Yale, the University of British Columbia, and the Weizmann... Read More

In first moments of infection, a division and a decision

Using technologies and computational modeling that trace the destiny of single cells, researchers describe for the first time the earliest stages of fate determination among white blood cells called T lymphocytes, providing new insights that may help drug developers create more effective, longer... Read More

Study of Antibody Evolution Charts Course toward HIV Vaccine (press release)

In an advance for HIV vaccine research, a scientific team has discovered how the immune system makes a powerful antibody that blocks HIV infection of cells by targeting a site on the virus called V1V2. Many researchers believe that if a vaccine could elicit potent antibodies to a specific conse... Read More

A Mouthful Of Microbes

After watching Hollywood movies of medieval knights with neat haircuts and bright smiles, it may shock you to be reminded that our dear medieval cousins looked anything but clean. The truth is that hygiene was not a top priority in the Middle Ages and germs were in heaven. This was a time in whi... Read More

Thanks to Climate Change, West Nile Virus Could Be Your New Neighbor

Invasive species aren’t just species—they can also be pathogens. Such is the case with the West Nile virus. A mosquito-borne virus identified in the West Nile subregion in Uganda in 1937—hence the name—West Nile wasn’t much of a concern to people elsewhere until it broke out of Africa in 1999. T... Read More

TWiV 274: Data dump



Hosts: Vincent Racaniello, Dickson Despommier, Read More

A Newly Discovered Microbe Could Accelerate Global Warming

Teaming beneath Sweden's thawing permafrost is a previously undiscovered microbe known as methanongen (Candidatus Methanoflorens Stordalenmirensis). As its name suggests, the microbe does one thing really well: release methane into the atmosphere, presenting a feedback loop of gas production tha... Read More

Flu Killing More Young Adults This Year, CDC Says

Influenza is killing more young and middle-aged adults this year than usual, in part because they’re less likely to be vaccinated, federal health officials said Thursday.

More than 60 percent of those killed or put into the hospital by flu so far this season have been aged 18 to 64, the Cente... Read More

Microbe ‘tomb’ on teeth reveals medieval microbiome

Scientists have discovered a “microbial Pompeii” preserved on the teeth of skeletons around 1,000 years old.

The key to the discovery is the dental calculus, or “plaque,” which preserves bacteria and microscopic particles of food on the surfaces of teeth, effectively creating a mineral tomb f... Read More

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