Hydrogen peroxide regulates antioxidant responses and redox related proteins in drought stressed wheat seedlings.

ABSTRACT: Hydrogen peroxide plays pivotal role as a potent regulator in signalling pathways when the plant is under stress. The current study appraised the potential of hydrogen peroxide through seed pre-treatment on the seedling growth and defense responses of three wheat cultivars i.e. PBW 644 (tolerant), PBW 621 and HD 2967 (sensitive) grown under drought stress. Imposition of drought stress reduced seedling growth of all the three wheat cultivars. Pre-treatment of seeds with 60 mM H₂O₂ alleviated water stress induced growth inhibition in all the three wheat cultivars. Further, it enhanced the drought tolerance of PBW 644 by upregulating SOD, POX, APX and GR enzymes accompanied by an increase in total phenols and ascorbate content. H₂O₂ treatment also p

SUBMITTER: Bhardwaj RD 

PROVIDER: S-EPMC7873167 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature