Proline in action: Enhancing fruit quality
2025
Shehata, Raed
Proline is an aliphatic, nonpolar amino acid that serves as a vital osmoregulator in plants that are subjected to abiotic stresses, including heat, salinity, and drought. Proline is endogenously produced in plant to enhance its ability to withstand adverse environmental conditions. Hence, the accumulation of proline in plant tissue is commonly recognized as a characteristic plant response to external stresses. Multiple studies have shown that the exogenous administration of proline at low concentrations improves stress tolerance, leading to an increase in fruit yield and boosting their quality. This review examines the influence of proline applications on the quality of fruit and the processes through which proline improves fruit quality, as documented in the literature.
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