Alterations in some oxidative parameters in susceptible and resistant wheat plants infected with Puccinia recondita f.sp. tritici.
We studied the systemic effects after infection of susceptible and resistant (expressing HSR) wheat plants with leaf rust (Puccinia recondita f.sp. tritici) on the amount of hydrogen peroxide and activity of some ROS scavenging enzymes. Measurements were performed 7 and 21 days after inoculation. In susceptible cultivar (Sadovo 1), an inhibition of activity of catatase and GST was found. By contrast, in resistant cultivar (Kristal), the infection caused an activation of these enzymes. Moreover, it was established that cv. Kristal plants possess constitutive higher levels of hydrogen peroxide, as well as higher superoxide dismutase activity.
Ivanov
Sergei
S
Acad. M. Popov Institute of Plant Physiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl 21, 1113 Sofia, Bulgaria. sivanov@obzor.bio21.bas.bg
Miteva
Lyuba
L
Alexieva
Vera
V
Karjin
Hristo
H
Karanov
Emanuil
E
D001487:Basidiomycota / Q000472:pathogenicity*; D004198:Disease Susceptibility; D007113:Immunity, Innate; D010084:Oxidation-Reduction; D010544:Peroxidases / Q000378:metabolism; D010935:Plant Diseases / Q000382:microbiology; D018515:Plant Leaves / Q000382:microbiology / Q000502:physiology; D014908:Triticum / Q000382:microbiology* / Q000502:physiology*
D010544:Peroxidases