Active oxygen radicals induce peroxidase activity in rice blade tissues.
The relationship between active oxygen radicals and peroxidase induction on disease resistance in rice blades was investigated. Nitric oxide was produced in the whole blade stimulated by blast fungus elicitor. The induction of peroxidase activity was detected in active oxygen radical-treated rice blades 1 hour after treatment and thereafter. These results suggest that active oxygen radicals produced by stimulation with the elicitor could trigger peroxidase induction.
Higa
A
A
Department of Applied Biological Chemistry, Faculty of Agriculture, Tamagawa University, Tokyo, Japan. ahiga@postman.riken.go.jp
Hidaka
T
T
Minai
Y
Y
Matsuoka
Y
Y
Haga
M
M
D004790:Enzyme Induction / Q000187:drug effects; D005609:Free Radicals / Q000494:pharmacology; D009569:Nitric Oxide / Q000096:biosynthesis; D012275:Oryza / Q000201:enzymology*; D010100:Oxygen / Q000378:metabolism; D009195:Peroxidase / Q000096:biosynthesis*; D018515:Plant Leaves / Q000201:enzymology; D013482:Superoxide Dismutase / Q000378:metabolism
D005609:Free Radicals; D009569:Nitric Oxide; D009195:Peroxidase; D013482:Superoxide Dismutase; D010100:Oxygen