| Categories genes  | Tags salinity  tolerance  abiotic stress  salinity stress  stress  biotic stress  stress tolerance  chloroplast  temperature  photosynthesis 
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  • Key message
    • Overexpression of OsIFL in transgenic tobacco plants conferred salinity stress tolerance by maintaining favourable K(+)/Na(+) ratio and thus showed protection from salinity stress induced ion toxicity
    • Our investigations clearly establish that the heterologous expression of OsIFL in three diverse organisms (bacteria, yeast and tobacco) provides survival advantage towards diverse abiotic stresses
    • Seeds of OsIF overexpression rice germinated normally in the presence of high salt, showed better growth, maintained chloroplast ultrastructure and favourable K+/Na+ ratio than the wild type (WT) and KD plants
    • Under salinity and high temperature stress, OsIF overexpressing plants could maintain significantly high yield, while the WT and KD plants could not
    • Overexpression of OsIF in transgenic rice enhanced tolerance to salinity and heat stress, while its knock-down (KD) rendered plants more sensitive thereby indicating the role of IFs in promoting survival under stress
    • Analysis of photosynthesis and chlorophyll a fluorescence data suggested better performance of both photosystem I and II in the OsIF overexpression rice under salinity stress as compared to the WT and KD
    • Further, metabolite profiling revealed a 2-4 fold higher accumulation of proline and trehalose in OsIF overexpressing rice than WT, under salinity stress
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