osmotic regulation drought tolerance proline accumulation photosynthetic efficiency stomatal conductance abiotic stress antioxidant defense

Understanding plant physiological responses to abiotic stress is crucial for enhancing crop resilience. This study explores the osmotic regulation and adaptive mechanisms in selected drought-tolerant plant species. The objective is to identify physiological traits that confer drought resistance and understand their underlying mechanisms. We employed a combination of gas exchange measurements, chlorophyll fluorescence analysis, and osmotic adjustment assessments. Findings revealed that these plants exhibit efficient water-use strategies and enhanced osmoprotectant accumulation. Notably, significant increases in proline and soluble sugar concentrations were observed, correlating with improved plant water status and reduced oxidative damage. Stomatal conductance and photosynthetic efficiency metrics indicated maintenance of photosystem II stability under drought conditions. Our results suggest that the integration of osmotic and antioxidative strategies enables these species to sustain physiological activity under water-limited environments. These insights contribute to the development of drought-resistant crops through informed breeding programs and genetic engineering. In conclusion, the study highlights the importance of investigating multi-faceted adaptive traits for advancing agricultural resilience in response to climate change.

Login to Download PDF

Please login with your Paper ID and password to access the full PDF.

🔑 Login to Download