Application of the EPR technique to examine free radical qualities reducing infection of spring wheat grain with pathogenic fungi by He-Ne laser irradiation
2000
Gagos, M. | Koper, R. | Sujak, A. (Akademia Rolnicza, Lublin (Poland). Katedra Fizyki) | Misiak, L.E. | Kowalczuk, E. (Uniwersytet Marii Curie-Sklodowskiej, Lublin (Poland). Inst. Mikrobiologii)
Samples of spring wheat grain, Jasna cv., infected with pathogenic fungi (Aspergillus niger, Penicillium sp., Fusarium, Mucor) were examined using an EPR technique. Considering the quantity of generated free radicals the fungi belonged to most toxine generating. Their toxicity was connected with the number of free radicals generated in examined grain. Grain was irradiated with He-Ne laser at known wavelength, power density and time of exposure what gave the mycostatic effect appearing in decrease of free radicals in grain samples. However, this process was not stable as the increase of free radicals was observed again with the regrowth of fungi after some days
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