Ramón Pizarro Radiobiología, Comisión Nacional de Energía Atómica, Argentina, Argentina,
1 protocol

Magdalena Pezzoni Radiobiología, Comisión Nacional de Energía Atómica, Argentina, Argentina,
1 protocol

Cristina S. Costa
  • Dpto. de Radiobiología, Comisión Nacional de Energía Atómica, Argentina, Argentina,
  • 1 Author merit


Dr, Universidad de Ciencias Exactas y Naturales, Argentina

Current position

Investigator, Radiobiología, Comsión Nacional de Energía Atómica, Argentina


  1. Gomez, G. E., D'Vries R, F., Lionello, D. F., Aguirre-Diaz, L. M., Spinosa, M., Costa, C. S., Fuertes, M. C., Pizarro, R. A., Kaczmarek, A. M., Ellena, J., Rozes, L., Iglesias, M., Van Deun, R., Sanchez, C., Monge, M. A. and Soler-Illia, G. (2018). Exploring physical and chemical properties in new multifunctional indium-, bismuth-, and zinc-based 1D and 2D coordination polymers. Dalton Trans 47(6): 1808-1818.
  2. Pezzoni, M., Catalano, P. N., Pizarro, R. A., Desimone, M. F., Soler-Illia, G., Bellino, M. G. and Costa, C. S. (2017). Antibiofilm effect of supramolecularly templated mesoporous silica coatings. Mater Sci Eng C Mater Biol Appl 77: 1044-1049.
  3. Catalano, P. N., Pezzoni, M., Costa, C. S., Soler-Illia, G. J. A. A., Bellino, M. G., Desimone, M. F. (2016). Optically transparent silver-loaded mesoporous thin film coating with long-lasting antibacterial activity. Microporous and Mesoporous Materials 236, 158-166. 
  4. Pezzoni, M., Tribelli, P. M., Pizarro, R. A., Lopez, N. I. and Costa, C. S. (2016). Exposure to low UVA doses increases KatA and KatB catalase activities, and confers cross-protection against subsequent oxidative injuries in Pseudomonas aeruginosa. Microbiology 162(5): 855-864.0
  5. Pezzoni, M., Meichtry, M., Pizarro, R. A. and Costa, C. S. (2015). Role of the Pseudomonas quinolone signal (PQS) in sensitising Pseudomonas aeruginosa to UVA radiation. J Photochem Photobiol B 142: 129-140.
  6. Pezzoni, M., Pizarro, R. A. and Costa, C. S. (2014). Protective role of extracellular catalase (KatA) against UVA radiation in Pseudomonas aeruginosa biofilms. J Photochem Photobiol B 131: 53-64.
  7. Pezzoni, M., Pizarro, R. A., Costa, C.S. (2012). Protective effect of low UVA irradiation against the action of lethal UVA on Pseudomonas aeruginosa: rol of the relA gene. Journal of Photochemistry and Photobiology B: Biology 116: 95-104.
  8. Oppezzo, O. J., Costa, C. S., Pizarro, R. A. (2011). Effects of ultraviolet A radiation on survival and growth of Gram negative bacteria. Trends in Photochemistry and Photobiology 13: 37-50.
  9. Antón, D. N. y Costa, C. S. (2011). Las mutaciones de resistencia al antibiótico mecilinam y su relación con el control de la forma celular en Salmonella enterica serovar Thyphimurium. Journal of Basic and Applied Genetics 22: 1-5 (artículo 6). 
  10. Pezzoni, M., Costa, C. S., Pizarro, R. A. and Oppezzo, O. J. (2011). The relationship between carotenoids and sunlight response in members of the family Micrococcaceae. J Basic Microbiol 51(3): 325-329.
  11. Oppezzo, O.J., Costa, C.S., Pizarro, R.A. (2011). Influence of rpoS mutations on the response of Salmonella enterica serovar Typhimurium to solar radiation. Journal of Photochemistry and Photobiology B: Biology 102:20-25
  12. Costa, C. S., Pezzoni, M., Fernández, R. O., Pizarro, R. A. (2010). Role of the quórum sensing mechanism in the response of Pseudomonas aeruginosa to lethal and sublethal UVA irradiation. Photochemistry and Photobiology  86:1334-1342.
  13. Costa, C. S., Pizarro, R. A. and Anton, D. N. (2009). Influence of RpoS, cAMP-receptor protein, and ppGpp on expression of the opgGH operon and osmoregulated periplasmic glucan content of Salmonella enterica serovar Typhimurium. Can J Microbiol 55(11): 1284-1293.
  14. Costa, C. S. and Anton, D. N. (2006). High-level resistance to mecillinam produced by inactivation of soluble lytic transglycosylase in Salmonella enterica serovar Typhimurium. FEMS Microbiol Lett 256(2): 311-317.
1 Protocol published
Detection of Catalase Activity by Polyacrylamide Gel Electrophoresis (PAGE) in Cell Extracts from Pseudomonas aeruginosa
Authors:  Magdalena Pezzoni, Ramón A. Pizarro and Cristina S. Costa, date: 06/05/2018, view: 349, Q&A: 0
Bacteria in nature and as pathogens commonly face oxidative stress which causes damage to proteins, lipids and DNA. This damage is produced by the action of reactive oxygen species (ROS) such as hydrogen peroxide (H2O2), ...