Superoxide dismutase in chickpea genotypes under high temperature

Superoxide dismutase (SOD) isozymes and activity in chickpea genotypes was examined under high temperature stress. Two chickpea (Cicer arietinum L.) genotypes, Pusa 1103 and Pusa 261 were grown in pot culture and transferred to BOD incubator for high temperature (35°C) treatment for 4 h and 6 h at 95 days after sowing. The SOD activity was estimated using native PAGE in fresh leaf sample collected from control and high temperature exposed plants. The activity of this enzyme was found significantly higher under high temperature in Pusa 1103, known to have greater thermotolerance compared to Pusa 261.