Physiological engineering of Pseudomonas aurantiaca antimicrobial activity: effects of sodium chloride treatment

  • Linda Rozenfelde | lindyr@inbox.lv Laboratory of Cell Biology, Institute of Microbiology and Biotechnology, University of Latvia, Riga, Latvia.
  • Galina Khroustalyova Laboratory of Cell Biology, Institute of Microbiology and Biotechnology, University of Latvia, Riga, Latvia.
  • Marina Mandryk Laboratory of Biological Control, Institute of Microbiology, Belarus Academy of Sciences, Minsk, Belarus.
  • Emily Kolomiets Laboratory of Biological Control, Institute of Microbiology, Belarus Academy of Sciences, Minsk, Belarus.
  • Alexander Rapoport Laboratory of Cell Biology, Institute of Microbiology and Biotechnology, University of Latvia, Riga, Latvia.

Abstract

The influence of sodium chloride (NaCl) treatment on the antifungal activity of the bacterium Pseudomonas aurantiaca, a producer of biopesticide for vegetable plants, was investigated. It was shown that an increase in the NaCl concentration in incubation solutions from 1 M to 3 M led to a significant increase in the antifungal activity of this bacterium. Antifungal activity continued to increase with prolonged treatment of bacteria in fresh nutrient medium from 72 h to 96 h. These findings could be very important for the further development of biotechnological processes directed not only to the production of new active biopesticides but also of other valuable resources.

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Published
2012-12-19
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Articles
Keywords:
biopesticides, biological control, activa- tion of metabolism, dehydration, anhydrobiosis
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How to Cite
Rozenfelde, L., Khroustalyova, G., Mandryk, M., Kolomiets, E., & Rapoport, A. (2012). Physiological engineering of Pseudomonas aurantiaca antimicrobial activity: effects of sodium chloride treatment. Microbiology Research, 3(2), e26. https://doi.org/10.4081/mr.2012.e26