Stress-induced synthesis of proline confers tolerance to water deficit in transgenic wheat

摘要: Water deficit is one of the main abiotic factors that affect spring wheat planted in subtropical regions. Accumulation proline appears to be a promising approach maintain productivity plants under stress condition. However, morphological alterations and growth reduction are observed transgenic carrying genes coding for osmoprotectants controlled by constitutive promoters. We report here effects water on transformed with Vigna aconitifolia Delta(1)-pyrroline-5-carboxylate synthetase (P5CS) cDNA encodes key regulatory enzyme biosynthesis, control stress-induced promoter complex-AIPC. Transgenic submitted 15 days shortage presented distinct response. have found drought resulted accumulation proline. The tolerance was mainly due protection mechanisms against oxidative not caused osmotic adjustment.