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Advocating Pill, U.S. Signals Shift to Prevent AIDS

Federal health officials recommended Wednesday that hundreds of thousands of Americans at risk for AIDS take a daily pill that has been shown to prevent infection with the virus that causes it.

If broadly followed, the advice could transform AIDS prevention in the United States — from relianc... Read More

Host plants reprogram their root cells to accommodate symbiotic nitrogen-fixing bacteria

To enter into symbiosis with nitrogen-fixing bacteria, host plants reprogram their root cells. An LMU team has now identified a calcium-binding protein complex that can be persuaded to spontaneously induce the formation of root nodules.

In almost all ecosystems, plant growth rates are limited... Read More

The Walking Dead offers teachable moment about antivirals vs antibacterials

If you teach students about viruses and bacteria, recent episodes of The Walking Dead have been using the term "antibiotic" to stand for antivirals. Since students are probably watching the show, it might be a good time to highlight the mistake. I summarized the issues at the associated URL (ht... Read More

Molecule Plays Important Role in Triggering Immune Response

The nucleoside adenosine—a tiny chemical structure made up of a simple base linked to a sugar—is critical for the regulation of bodily functions ranging from blood flow to tissue repair to sleep. Now, researchers at Rutgers New Jersey Medical School show that adenosine is essential in promoti... 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

New candy eats 'bad' bacteria in the mouth, benefitting teeth

Our mouths are a delicate balance of good and bad bacteria. When we clean our teeth, the aim is to knock out cavity-causing bacteria, while allowing beneficial oral bacteria to thrive. Now, researchers have developed a sugar-free candy, which contains dead bacteria that bind to bad bacteria, pot... Read More

Getting a Knit Bacteriophage From a Former Student!

A former student dropped by my lab this morning, and brought me a gift: a knit bacteriophage! Many times, as educators, we hear what we haven't done well, or could do better. Sometimes, like today, we get a priceless "thank you" from a former student. Read More

Mycotoxin protects against nematodes

Researchers at ETH Zurich have isolated a protein from a fungus of the spruce which combats nematodes. The scientists hope that toxins of this kind will become the basis for the vaccination of livestock or domestic animals against zooparasitic nematodes.

Most terrestrial plants enter into bio... Read More

Probiotics not for colic? A response

This week a study published in the British Medical Journal, and reported in the Daily Mail, has reported that a strain of bacteria known as Lactobacillus reuteri DSM 17938 is not effective in helping to reduce symptoms of colic in babies.

However here we examine the nature of the study, and i... Read More

Glowing Antibiotics Reveal Bacterial Infections

Despite surgeons’ best efforts, bacteria often manage to sneak onto medical implants such as bone screws, where they can cause severe infections. Research published today in Nature Communications suggests that using fluorescent antibiotics could reveal such infections before they become too seve... Read More

Mathematical modelling disproves long-held view of bacterial cell cycle

A key theory of the cell cycle of asymmetric bacteria, which has prevailed for the last ten years, has been disproved by a combined approach using mathematical modelling and genetic experiments.

Modellers Prof. Martin Howard and Dr Seán Murray, from the John Innes Centre on the Norwich Resear... Read More

TWiV 290: Baylor goes viral

Vincent meets up with Janet Butel and Rick Lloyd at Baylor College of Medicine to talk about their work on polyomaviruses and virus induced stress.


 


Host: Vincent Racaniello


Guests... Read More

Plant scientists unravel a molecular switch to stimulate leaf growth

Mechanisms that determine the size of plants have fascinated plant scientists of all times, however they are far from understood. An international research team led by plant scientists from VIB and Ghent University report an important breakthrough in the scientific journal The Plant Cell. They i... Read More

Gene prevents buildup of misfolded cell proteins

Much like how a snowplow is needed to clear streets of heavy snow, cells employ a set of genes to clear away misfolded proteins, to prevent them from accumulating and destroying the cell.

For the first time, Cornell researchers have demonstrated how a gene called SEL1L plays a critical role i... Read More

"Microbe-Powered Jobs: How Microbiologists Can Help Build the Bioeconomy" Infographic

The American Academy of Microbiology has just released a new report, "Microbe-Powered Jobs: How Microbiologists Can Help Build the Bioeconomy," and along with it, an infographic, that summarizes the main points of the report. The full report can be found here: http://bit.ly/1lk346I, and a link t... Read More

Infection with the common cold virus: scientists reveal new insights

The common cold virus (rhinovirus) is a tiny, almost round particle, containing the tightly packed genetic material surrounded by a protein shell (the virus capsid). Details on how the RNA is prepped to exit the capsid and effectively infect us have now been provided by scientists from the Max F... Read More

New yeast species travelled the globe with a little help from the beetles

Researchers from the National Collection of Yeast Cultures (NCYC) at the Institute of Food Research (IFR) have identified a new globe-trotting yeast species that lives on tree-associated beetles. This new species demonstrates the importance of preserving biodiversity, as yeasts like this may hel... Read More

TWiV 288: ebircsnart esreveR

The Twivsters discuss how reverse transcriptase encoded in the human genome might produce DNA copies of RNA viruses in infected cells.


Hosts: Vincent Racaniello Read More

TWiM #87: Avogadro, archaeal fossils, and ICAAC

Hosts: Vincent RacanielloMichael Schmidt, ... Read More

Symbiotic Fungi Inhabiting Plant Roots Have Major Impact On Atmospheric Carbon

AUSTIN, Texas — Microscopic fungi that live in plants' roots play a major role in the storage and release of carbon from the soil into the atmosphere, according to a University of Texas at Austin researcher and his colleagues at Boston University and the Smithsonian Tropical Research Institute. ... Read More

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