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

DOI: 10.4081/mr.2012.e26

Keywords: biopesticides , biological control , activa- tion of metabolism , dehydration , anhydrobiosis

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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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