[Activation of extracellular peroxidase of wheat roots under the action of xenobiotics].
We studied the influence of xenobiotics of various chemical natures, including N,N'-dicyclohexylcarbodiimide, diethylstilbestrol, and chlorpromazine, on the activity of peroxidase, a redox-enzyme that participates in defense reactions of plants. It was shown that the influence of the studied xenobiotics on severed roots of wheat seedlings caused an increase in the permeability ofplasmalemma for K+ and H+ and stimulated the activity of the extracellular peroxidase that forms the superoxide radical anion. It is assumed that the extracellular peroxidase can initiate the transformation of alien compounds on the cell surface, before their entrance into the cells.
Chasov
A V
AV
Alekseeva
V Ia
VIa
Kolesnikov
O P
OP
Minibaeva
F V
FV
D002352:Carrier Proteins / Q000378:metabolism; D002412:Cations / Q000378:metabolism; D004789:Enzyme Activation; D006859:Hydrogen / Q000378:metabolism; D017136:Ion Transport; D010539:Permeability / Q000187:drug effects; D009195:Peroxidase / Q000096:biosynthesis*; D018517:Plant Roots / Q000201:enzymology; D011188:Potassium / Q000378:metabolism; D036226:Seedlings / Q000201:enzymology; D014908:Triticum / Q000187:drug effects* / Q000201:enzymology*; D015262:Xenobiotics / Q000494:pharmacology*
D002352:Carrier Proteins; D002412:Cations; D015262:Xenobiotics; D006859:Hydrogen; D009195:Peroxidase; D011188:Potassium