Activities of Catalase, Glycolate Oxidase, Hydroxypyruvate and NADPH-Glyoxylate Reductases at Different Growing Stages in the Leaves of Rice Plants

벼의 생육시기에 따른 일부 광호흡효소의 활성변화

Catalase, glycolate oxidase, hydroxypyruvate and NADPH-glyoxylate reductases activities in cell free extracts from leaves of 3 cultivars, Suwon 264, IR 36 and Jin Heung of rice plants were studied at different growing stages. Catalase and glycolate oxidase shows inclining activities toward the maximum vegetative growth whereas declining activities in either the enzymes were noticed during the maturing stage. After the photoperiodic condition exhibit increasing hydroxypyruvate and NADPH-glyoxylate reductases activities with time until maturing stage. No significant differences were found in the enzyme activities, and in analytical data of nitrogen, chlorophyll contents, dry weight and soluble proteins among the 3 cultivars.