Redox-regulation of germination during imbibitional oxidative and chilling stress in an indica rice cultivar (Oryza sativa L., Cultivar Ratna).

ABSTRACT: Imbibitional oxidative stress of different magnitude, imposed by treatment with different titer of H₂O₂ (both elevated, 20 mM and low, 500 µM) to an indica rice cultivar (Oryza sativa L., Cultivar Ratna) caused formation of differential redox cues at the metabolic interface, as evident from significant alteration of ROS/antioxidant ratio, efficacy of ascorbate-glutathione cycle, radical scavenging property, modulation of total thiol content and expression of oxidative membrane protein and lipid damages as biomarkers of oxidative stress. All the redox parameters examined, substantiate the experimental outcome that treatment with elevated concentration of H₂O₂ caused serious loss of redox homeostasis and germination impairment, whereas low t

SUBMITTER: Chakrabarty A 

PROVIDER: S-EPMC6522599 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature