Open AccessАскорбат-глутатіонова система захисту рослин кукурудзи в умовах дії іонів нікелю
Author(s) -
V. S. Bilchuk,
А. S. Rossikhina-Galycha
Publication year - 2012
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 - 10.15421/021225
Subject(s) - ascorbic acid , nickel , seedling , chemistry , glutathione , antioxidant , oxidizing agent , nitrate , metabolism , xenobiotic , metal , metal ions in aqueous solution , botany , horticulture , biochemistry , biology , food science , enzyme , organic chemistry
Influence of nickel ions on growth reaction in maize seedlings of Orjitza 237MV hybrid and the content of low-molecular antioxidants in assimilation organs are investigated. The dependence of morphometric parameters of seedling roots and sprouts on the concentration of nickel ions is established. Considerable depression of growth and development of vegetative organs at a juvenile period occurs under long-term action of the metal in concentrations of 0.05–1.00 mM/l. The changes of reduced glutathione and ascorbic acid content under nickel ions influence are found in the leaves photosynthesizing tissue of the maize seedlings. It leads to a variation of the reducing activity in the tissues. The given fact can testify to an oxidizing stress under nickel ions effect and to participation of the low-molecular antioxidants in the plants adaptation to xenobiotics influence. Period of renewal of the glutathione and ascorbic acid metabolism in experimental samples was determined by the concentration of the nickel nitrate.