Generation of hydroxyl radicals by Fe-polyphenol-activated CaO₂ as a potential treatment for soil-borne diseases.

ABSTRACT: An Fe-polyphenol catalyst was recently developed using anhydrous iron (III) chloride and coffee grounds as raw materials. The present study aims to test the application of this Fe-polyphenol catalyst with two hydrogen peroxide (H₂O₂) sources in soil as a new method for controlling the soil-borne disease caused by Ralstonia solanacearum and to test the hypothesis that hydroxyl radicals are involved in the catalytic process. Tomato cv. Momotaro was used as the test species. The results showed that powdered CaO₂ (16% W/W) is a more effective H₂O₂ source for controlling bacterial wilt disease than liquid H₂O₂ (35% W/W) when applied with an Fe-polyphenol catalyst. An electron paramagnetic resonance spin trapping method

SUBMITTER: Morikawa CK 

PROVIDER: S-EPMC6021405 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature