@article{santos-filho_bernardo_santos_fonseca_bernardo-filho_2008,  title={Influence of an aqueous extract of Hypericum perforatum (Hypericin) on the survival of Escherichia coli AB1157 and on the electrophoretic mobility of pBSK plasmid DNA},  volume={18},  ISSN={0102-695X},  url={https://doi.org/10.1590/S0102-695X2008000300003},  DOI={10.1590/S0102-695X2008000300003},  number={3},  journal={Revista Brasileira de Farmacognosia},  publisher={Sociedade Brasileira de Farmacognosia},  author={Santos-Filho, Sebastião D. and Bernardo, Raquel M. and Santos, Kelly C. M. and Fonseca, Adenilson S. and Bernardo-Filho, Mario},  year={2008},  month={Jul},  pages={326–330} }