Olga Postolachi, Inna Rastimesina, Valentina Vorona, Vera Mamaliga, Nina Streapan, Tatiana Gutul
Fungi
Abstract:
The aim of this study was to estimate the sensitivity of microorganisms, isolated from
soil long-term polluted with obsolete pesticides, to magnetite (Fe3O4) nanoparticles
and fluorinated dinitroaniline herbicide trifluralin, and to evaluate the inhibition
activity of these substances. The response of fungi and streptomycete strains to the
presence of magnetite nanoparticles in culture media is individual to each
microorganism. For the most of studied microorganisms, the addition of trifluralin to
culture media had a growth inhibition effect. An exception was the strain
Streptomyces sp. 0412, which growth was stimulated in the presence of xenobiotic.
The negative effect of pesticide was reduced, when before the addition to the culture
medium the trifluralin was mixed and incubated with magnetite nanoparticles for 1
hour.