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Mutant strains of Salmonella make infection more aggressive in commercial poultry, study shows
Publicado em 12 abril 2023
By André Julião | Agência FAPESP – In Brazil, a group of researchers supported by FAPESP created mutant forms of Salmonella to understand the mechanisms that favor colonization of the intestinal tract of chickens by these pathogenic bacteria and find better ways to combat the infection they cause.
An article on the study is published in the journal Scientific Reports. In it, the researchers note that, contrary to expectations, the mutant strains caused more severe [...]
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Study finds how dinosaurs' bones evolved to make them such giants
Publicado emDinosaurs as big as buses or five-story buildings would not be possible if their bones were dense and heavy like ours. Like present-day birds , dinosaurs had hollow bones with inner structures known as air sacs, which made their skeletons lighter and less dense. These structures were apparently so advantageous that they emerged at least three times during the evolution of dinosaurs and pterosaurs (flying reptiles), according to a study supported by FAPESP and described in an article in [...]ver notícia