Open AccessInfluence of low chronic exposure on physiological and biochemical properties of three irradiated generations Aspergillus versicolor
Author(s) -
A. V. Tugay,
Tatyana Tugay,
D. V. Lukashov
Publication year - 2015
Publication title -
vìsnik - kiïvsʹkij nacìonalʹnij unìversitet ìmenì tarasa ševčenka. bìologìâ
Language(s) - English
Resource type - Journals
ISSN - 1728-2748
DOI - 10.17721/1728_2748.2015.70.77-81
Subject(s) - aspergillus versicolor , catalase , agar plate , food science , agar , biology , nutrient agar , chemistry , microbiology and biotechnology , enzyme , aspergillus , biochemistry , bacteria , genetics
Exposure of chronic radiation on three generation Aspergillus versicolor, which were obtained in the model conditions from two parental strains: A.versicolor 99 with radioadaptive properties isolated from location "Shelter" Chornobyl NPP and A.versicolor 432 – control were characterized. In investigated generation A. versicolor 99 and A. versicolor 432 were found opposite changes of the growth rate (from deceleration to acceleration) under the cultivating in two medium with different content of carbon source, which value was in the range from 60% to 140% (on wort agar) and from 70% to 230% (on depleted nutrients agar) in comparison with non-irradiated generations. In three investigated generations A.versicolor 432 and A.versicolor 99 were found changes in the profile of activity of the antioxidant enzymes superoxidedismutase, catalase, peroxidase, which had wavy like character (except catalase) and high amplitude of oscillation from decreasing to 70% up to an increase to 900 %.