Causality analysis on cascades of reactions in the induced defense mechanism of rice plant. Part III Dynamic behavior of superoxide generation in rice leaf tissue infected with blast fungus and its regulation by some substances.
Year: 1987
Type: article
Abstract: Dynamic profiles of the rate of O^generation from press-injured and inoculated rice leaf slices, versus the time after inoculation, discriminated between the incompatible and compatible combination of blast fungus races with a cultivar.The application of sodium saccharin to rice seedlings via the root system for 6 days changed the compatible to incompatible profile.Even after pressinjury and inoculation with the compatible conidia, the leaf application of sodium saccharin enhanced superoxide generation.The application of A^-methylsaccharin in a similar manner, however, did not enhance the superoxide generation.Inoculation of press-injured leaves with incompatible conidia in the presence of an aqueous diffusate of the germinating compatible conidia changed the incompatible to compatible profile.The application to press-injured ofconcanavalin A or a lyophylized preparation from 5m ammoniaextracts of rice leaf homogenate prior to stimulating with a resistance-inducing factor (RIF) from the fungus also enhanced the superoxide generation.The RIF, either from the incompatible or compatible race, gave a quite similar profile of activation upon the generation of the superoxide anion.f Causality Analysis on Cascades of Reactions in the Induced Defense Mechanismof Rice Plant.Part III.A preliminary account was reported at The Annual Meeting of the Japanese Society of Plantphysiologists, Sendai, March, 1986.
Institution: Tamagawa University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W2336136141