VIEW ARTICLE

Effects of Gaseous Hydrogen Fluoride on Oxidative Enzymes of Pelargonium zonale Leaves. B. W. Poovaiah, Department of Botany, Utah State University, Logan 84321, Present address of senior author: Department of Horticulture, Michigan State University, East Lansing 48823; H. H. Wiebe, Department of Botany, Utah State University, Logan 84321. Phytopathology 61:1277-1279. DOI: 10.1094/Phyto-61-1277.

Changes in peroxidase and cytochrome oxidase enzymes were established histochemically in hydrogen fluoride fumigated leaves of Pelargonium zonale. Highest peroxidase and cytochrome oxidase activities were localized near the injured areas of fumigated leaves, and the greatest increase was observed in the phloem region.