Stimulation of antioxidative enzymes and polyamines during stripe rust disease of wheat

Abstract

Content of polyamines and activities of antioxidative enzymes in response to stripe rust disease caused by Puccinia striiformis have been studied in two wheat (Triticum aestivum L.) cultivars PBW 343 (resistant) and HD 2329 (susceptible). Various infection stages ranging from traces to 100 % were collected. Infection leads to stimulation of peroxidase (POD), superoxide dismutase (SOD), catalase, diamine oxidase and polyamine oxidase activities along with increase in putrescine, spermidine and spermine content while ascorbate, tocopherol and chlorophyll content decreased in HD 2329 and no visible symptoms appeared in PBW 343. Histochemical localization pattern of POD and SOD activities revealed correlation with lignin deposition in cell walls.

Keywords

• diamine oxidase
• peroxidase
• polyamine oxidase
• puccinia striiformis
• triticum aestivum