Bacterial virulence genes lead double life

Article Abstract:

Fred Ausubel and colleagues found that the same bacteria can cause disease in both plants and animals, including humans, and that the same virulence genes are involved in the infection process. The research may lead to easy, low-cost plant models to study the virulence of human pathogens.

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How reptiles took wing

Article Abstract:

Paleontologists Eberhard Freym Wolfgang Munk and Hans-Dieter Sues have demonstrated a flight mechanism in the 250-million-year-old Coelurosauravus jaekeli that is different from any other known creature. Its wing bones formed directly in the skin, separate from the skeleton.

Research, Paleontology, Origin, Animal flight, Permian period, Reptiles, Fossil, Fossil reptiles

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Triggering bacterial virulence

Article Abstract:

Two studies on the interaction between bacterial pathogens and eukaryotic cells indicate that bacterial pathogens receive important signals from host cell surfaces. The finding furthers progress toward the goal of understanding how virulence genes are controlled in vivo.

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