Open AccessУтворення малонового діальдегіду під дією важких металів як індикатора руйнування пігментсинтезувальних мембранних центрів бактерій
Author(s) -
A. F. Rylsky
Publication year - 2010
Publication title -
vìsnik dnìpropetrovs'kogo unìversitetu. bìologìâ, medicina/vìsnik dnìpropetrovsʹkogo unìversitetu. serìâ bìologìâ, medicina
Language(s) - English
Resource type - Journals
eISSN - 2312-7295
pISSN - 2310-4155
DOI - 10.15421/021017
Subject(s) - malonic acid , bacteria , pigment , serratia marcescens , chemistry , radical , nuclear chemistry , biochemistry , organic chemistry , biology , escherichia coli , genetics , gene
It was established that with Hg2+ and Cu2+ ions’ concentrations increasing in a nutrient medium the concentration of malonic dialdehyde in cells of bacteria Serratia marcescens increases. The sharp raise of malonic dialdehyde (14.37 ± 0.76 for Hg2+ and 24.75 ± 0.59 for Cu2+) coincides with metals’ concentrations which entail the loss of pigment-synthesizing ability of bacteria. It specifies that one of possible mechanisms of pigments loss in bacteria can be a damage by free radicals of pigment-synthesizing sections of membranes.