Journal Club

Highlighting recently published papers selected by Academy members

Category Archives: Microbiology

Future antibiotics: Keep bacteria from sensing each other

Alone, a single cell of Pseudomona aeruginosa—the bacteria blamed for many hospital-acquired infections—can’t cause much damage to the human body. In fact, the bacteria won’t even produce virulence factors, the compounds that make it pathogenic to humans, if it doesn’t … Continue reading

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Bacteria work together to gather food

Sulfur-oxidizing bacteria living in the still water at the bottom of salt marshes cooperate with one another to pull food in their direction faster than it would arrive through diffusion, researchers report in the Proceedings of the National Academy of … Continue reading

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Yeast metabolism altered by exposure to light

Visible light causes cellular metabolism effects even in cases where the tissue or specimen does not have specialized photoreceptors, report biologists in PNAS Early Edition. That could be a problem for the many researchers who assume natural light or fluorescent … Continue reading

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Strategies to kill dormant tuberculosis bacteria

Existing antibiotics can wipe out active bacteria, but they generally work poorly against persister, bacteria that are dormant, which are often the reason treatments of chronic bacterial infections fail. For instance, tuberculosis notoriously resists many antibiotics when dormant, helping lead … Continue reading

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Twelve new viruses fished from world’s oceans

Scoop a cup of water out of the Atlantic Ocean, the Pacific Ocean, or any sea in between, and you’re sure to get more than just salty water. The sample will be teeming with algae, bacteria, and millions of viruses. … Continue reading

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High fiber diets affect E. coli infections

A high fiber diet is good for your body in more ways than one, but it could spell trouble if you eat food that’s contaminated with pathogenic Escherichia coli bacteria. A new PNAS Early Edition paper concluded that mice on … Continue reading

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Bats found to host hepatitis C family of viruses

Bats can be hosts to a host of dangerous viruses, such as Ebola, SARS, Marburg, Nipah and Hendra. Now researchers in the Proceedings of the National Academy of Sciences report that bats are reservoirs of relatives of the hepatitis C … Continue reading

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