In vivo assessment of salinity stress tolerance in transgenic Arabidopsis plants expressing Solanum tuberosum D200 gene

Transgenic Arabidopsis plants expressing a potato D200 gene encoding hypothetical protein were subjected to salinity stress and assessed for their tolerance. The lines exhibited increased chlorophyll content, improved stomatal conductance, less electrolyte leakage, lower accumulation of malondialdehyde (MDA), higher amount proline compared the wild type (WT) under stress. expression analysis revealed that accumulated significantly mRNA transcripts genes three major antioxidant enzymes ascorbate peroxidase (APX), catalase (CAT), superoxide dismutase (SOD). Chlorophyll fluorescence kinetics analyses showed more efficient in terms primary photochemistry photosystem II performance indices. Furthermore, quantum yields efficiencies represent critical steps photosynthetic light reactions analyzed it was found photosynthetically active than WT salt conditions. Overall, these findings suggest is potential candidate developing stress-resilient crops future.