OsGLP1

| Categories genes  | Tags biotic stress  abiotic stress  height  cell wall  vegetative  disease resistance  disease  dwarf 
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  • Key message
    • The transgenic tobacco lines expressing SOD-active OsGLP1 showed tolerance against biotic and abiotic stresses mitigated by hyper-accumulating H(2)O(2) upon infection by fungal pathogen (Fusarium solani) and treatment to chemical oxidizing agent (ammonium persulfate), respectively
    • Our observations on the maintenance of cell dimension, cell wall-associated localization particularly in the sub-epidermal tissues and the SOD activity of OsGLP1 could explain its functional role in regulation of plant height and disease resistance in rice plant
    • Usually, the single copy OsGLP1 gene in rice plant was found to be expressed predominantly in green vegetative tissues
    • Our recent report documented that the rice germin-like protein1 (OsGLP1), being a cell wall-associated protein involves in disease resistance in rice and possesses superoxide dismutase (SOD) activity as recognized by heterologous expression in tobacco
    • The transgenic rice lines showed significant reduction in endogenous OsGLP1 expression due to 26nt siRNA-mediated gene silencing, displayed semi-dwarfism and were affected seriously by fungal diseases, compared to the untransformed plant
    • Our findings demonstrate that the OsGLP1 with its inherent SOD activity is responsible for hyper-accumulation of H(2)O(2) and reinforcement of the cell wall components
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