Thiourea, a ROS Scavenger, Regulates Source-to-Sink Relationship to Enhance Crop Yield and Oil Content in Brassica juncea (L.)

摘要: In the present agricultural scenario, major thrust is to increase crop productivity so as ensure sustainability. an earlier study, foliar application of thiourea (TU; a non physiological thiol based ROS scavenger) has been demonstrated enhance stress tolerance and yield different crops under field condition. Towards this endeavor, work deals with effect TU on photosynthetic efficiency source-to-sink relationship Indian mustard (Brassica juncea) for understanding its mode action. The increased both PSI PSII photosystems vegetative growth plant. comparative analysis sucrose starch ratio expression level sugar transporters confirmed higher source sink strength in response treatment. biochemical evidence support was derived from activities phosphate synthase fructose-1,6-bis-phosphatase at source; classes invertases sink. This indicated overall photoassimilate An additional contribution through pod photosynthesis phosphoenol pyruvate carboxylase enzyme activity organic acids. also co-ordinated acetyl coA mediated oil biosynthesis. All these changes were ultimately reflected form 10 20% total content, respectively treatment compared control. Additionally, no change observed composition seeds treated plants. study thus signifies regulation key steps external resulting content.