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MWV Episode 94 - TWiM #99: Careers in Biodefense
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Tooth protection from the sea

A team of dentists and scientists from Newcastle University are developing a new product from a marine microbe to protect dentures, teeth and gums from bacteria in the mouth.

They are using an enzyme isolated from a marine bacterium Bacillus licheniformis found on the surface of seaweed which... Read More

Arsenic-loving bacteria? New studies contradict report of bugs that seemed to break the rules

It was a provocative finding: strange bacteria in a California lake that thrived on something completely unexpected — arsenic. What it suggested is that life, a very different kind of life, could possibly exist on some other planet.

The research, published by a leading scientific journal in 2... Read More

Cat Litter Parasite Tied to Suicide Risk in New Moms

Mothers with IgG antibodies to Toxoplasma gondii at delivery are at risk for later self-harm or suicide, particularly if they have higher titers against the parasite, a Danish study found.

The risk of self-directed violent behavior was increased 1.53-fold (95% CI 1.27 to 1.85, Psk rose to 1.9... Read More

Oddly Microbial: 86 Million Year-Old Deep Seabed Mystery Cells

Life in a high-pressured environment with practically nothing to eat might be ok for high-fashion models, but it’s an unlikely lifestyle choice for a single cell whose usual overriding goal is to become two cells. Yet the largest living ecosystem on Earth—the deep biosphere—is comprised of micro... Read More

How Bacteria Sense Salt Stress

Scientists' finding is a major breakthrough in understanding a decades-old problem of how bacteria detect environmental changes.

A team of scientists led by Assistant Professor Ganesh S Anand and Professor Linda J. Kenney from the National University of Singapore (NUS) Department of Biologica... Read More

New approach of resistant tuberculosis

Scientists of the Antwerp Institute of Tropical Medicine have breathed new life into a forgotten technique and so succeeded in detecting resistant tuberculosis in circumstances where so far this was hardly feasible. Tuberculosis bacilli that have become resistant against our major antibiotics ar... Read More

Protein proves to be vital in immune response to bacteria

A team of researchers led by scientists at Rockefeller University have discovered that a protein once thought to be mainly involved in antiviral immunity is in fact more important in fighting bacterial infections and could provide new mechanisms for treating diseases like tuberculosis, which is ... Read More

Scientists reveal how natural systems limit the spread of "cheating" bacteria

In the first field study of its kind researchers at Royal Holloway, University of London and the University of Oxford have investigated the competitive dynamics of pathogenic and non-pathogenic strains of bacteria.

Bacteria are increasingly seen as living and interacting in groups and sharing... Read More

Superbug infections dropping across US, army finds

Bloodstream infections caused by the MRSA superbug may be on the decline in communities across the U.S., according to a large study of military personnel.

Previous data from the Centers for Disease Control and Prevention show a drop in infections contracted in healthcare settings. But the tra... Read More

Time in space may stretch worm lifespan

Scientists studying loss of bone and muscle mass among astronauts find that spaceflight’s effects on microscopic worms may help them live longer.

The researchers discovered that spaceflight suppresses accumulation of toxic proteins that normally accumulate within aging muscle.

In addition,... Read More

Searching for an Ancient Syphilis DNA in Newborns

Ancient DNA of the bacteria causing syphilis, the Treponema pallidum pallidum, can be recovered from the ancient bones of newborns. This is the conclusion reached by a study led by Universitat Autònoma de Barcelona (UAB), which was able to obtain the genetic material from the bacteria in more th... Read More

Bacteria a potential threat to nuclear waste repositories

By interacting with the radioactive waste and the materials used to contain it, underground microorganisms may affect the safety of nuclear waste repositories, for better or for worse.

Underground, time appears to stand still. That is one of the reasons why deep geological formations are cons... Read More

Thoughts on the Inaugural Conference on the Microbiology of the Built Environment

". . . a guest post [to microbe.net] by David Thaler, who is one of the Sloan-funded investigators working on the microbiology of the built environment . . ."

"A few thoughts after the Inaugural meeting of Microbiology of the Built Environment Boulder.

My own opinions on these points are s... Read More

TWiM 39 Letters

Merry writes:

Writing the sprint event for the Microbial Olympics published recently by Nature Reviews Microbiology was surely my most fun writing assignment ever! The idea for this feature articl... Read More

TWiM 38 Letters

Jim writes:

As usual I loved TWiM #37. Jo Handlesman adds a lot imho.

I think Michael Schmidt meant "dump data" instead "data dump."  Apologizes to Alan Dove.
<... Read More

TWiV 194: Five postdocs in North America

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Hosts: Vincent Racaniello, Matthew Daugherty, Jondavid d... Read More

Fungi that steal genes from bacteria

In order to survive in complex and interesting environments in the wild, bacteria have a whole arsenal of chemical products that they make within the cell. These chemicals are used for signalling, defence and communication between bacterial cells. One particular group of these chemicals is calle... Read More

Virus Find Helps Mystery Disease Probe in Cambodia

The investigation of a mystery disease that has killed dozens of children in Cambodia is advancing after the discovery in patient samples of a virus that causes hand, foot and mouth disease.

The Institut Pasteur du Cambodge found enterovirus 71 in 15 of 24 patients sampled since mid-June, Phi... Read More

In First, Software Emulates Lifespan of Entire Organism

Scientists at Stanford University and the J. Craig Venter Institute have developed the first software simulation of an entire organism, a humble single-cell bacterium that lives in the human genital and respiratory tracts.

The scientists and other experts said the work was a giant step toward... Read More

How hosts recognize bacteria

We are surrounded by bacteria, viruses, fungi and parasites. The fact that we nevertheless do not fall prey to infections is thanks to certain cellular sensor molecules such as toll-like receptors (TLR), which recognize the molecular structure of pathogens and intercede by ensuring an often comp... Read More
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