Seasonal expression of Cry 1 Ac toxin in different plant parts of two Bt Cotton hybrids
2013
Mahalakshmi, M.Sesha | Prasad, N.V.V.S.D.
The studies were conducted to estimate the quantity of Cry 1 Ac protein in different parts from two transgenic Bt cotton hybrids, viz., MECH 12 Bt and RCH 2 Bt at different crop growth stages through Bt-Quant ELISA kit. The Cry 1 Ac toxin expression was found to be variable among the hybrids and also among the different plant parts over the plant age. The Cry 1 Ac toxin expression was highest in leaves followed by inter locular wall and seed when compared to flower buds, flowers and boll rind in both MECH 12 Bt and RCH 2 Bt hybrids. The toxin expression was highest at 60 DAS which declined gradually by 150 DAS in both MECH 12 Bt and RCH 2 Bt hybrids.
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