CV Lattes
Universidade de São Paulo (USP). Instituto de Ciências Biomédicas (ICB) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Marina Rocha Borges da Fonseca in research grants and scholarships supported by FAPESP.
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Chemical and physical agents may induce genetic variation in bacterial populations. The constant exposure to low concentrations of antibiotics is an important factor in the selection of strains resistant to antibacterials. In addition, some antibiotics are capable of inducing genetic variation through the generation of DNA damage, which activate an emergency response, the SOS response. Th…
Strains that present high mutation rates (mutators) were detected in several bacterial genera. In those, the increase in mutation rates is related to defects in the DNA repair systems. Since 1885, bacteria from the genus Proteus, were described as gram-negative and gelatinase secreting, but during experiments conducted in the late twentieth century, some strains of Proteus mirabilis showe…
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