Spiny, armored slug reveals ancestry of molluscs

A 480-million-year-old slug-like fossil has been uncovered in Morocco, shedding new light on the evolution of molluscs — a diverse group of invertebrates that includes clams, snails and squids. …

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Cholera bacteria stab and poison enemies at predictable rates

Scientists use physics equations that describe molecular interactions to predict bacterial battles, and find correlation in genomes between weaponry and resource sharing.

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Protein chaperone takes its job seriously

In a new study, researchers are learning more about how ribosome chaperones work, showing that one particular chaperone binds to its protein client in a very specific, tight manner, almost like a glove fitting a hand. …

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Unhealthy gut microbes a cause of hypertension, researchers find

The microorganisms residing in the intestines (microbiota) play a role in the development of high blood pressure in rats, researchers have discovered.

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Scaled-up malaria control efforts breed insecticide resistance in mosquitoes

A genetic analysis of mosquito populations in Africa shows that recent successes in controlling malaria through treated bednets has led to widespread insecticide resistance in mosquitoes, according to a new study. …

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Defense mechanism employed by algae can effectively inhibit marine fouling

Cerium dioxide nanoparticles block communication between bacteria and prevent the formation of biofilms, report scientists.

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New Zika vaccine candidate protects mice and monkeys with a single dose

A new Zika vaccine candidate has the potential to protect against the virus with a single dose, according to a research team. Preclinical tests showed promising immune responses in both mice and monkeys. …

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Cytotoxins contribute to virulence of deadly epidemic bacterial infections

Beginning in the mid-1980s, an epidemic of severe invasive infections caused by Streptococcus pyogenes (S. pyogenes), also known as group A streptococcus (GAS), occurred in the United States, Europe, and elsewhere. Potent cytotoxins produced by this human pathogen contribute to the infection, commonly known as ‘flesh-eating disease.’ A new study reports that the bacteria’s full virulence is dependent on the presence of two specific cytotoxins, NADase (SPN) and streptolysin O (SLO).

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