Division of Genetics, Indian Agricultural Research Institute, New Delhi 110 012, India
*Corresponding author
1Present address: Biotechnology Unit, Indian Institute of Pulses Research, Kanpur 208 024, India.
Powdery mildew infection induced synthesis of β-1,3 glucanase in both resistant and susceptible lines of pea. Increase was most conspicuous and drastic in resistant as compared to susceptible genotypes: Maximum β1,3 glucanase activity was recorded 6–8 days after spore inoculation. Enzyme activity triggered 10–15 days before visible symptoms were observed. At later stages of crop growth a drop in β-1,3 glucanase activity was recorded which might be one of the possible reasons for reduction in resistance even in resistant genotypes during this period.
Pisum sativum, powdery mildew resistance, dynamics, β-1,3 glucanase
