2025年2月25日 · The synthesis of compatible solutes, particularly proline, is a mechanism plants utilize to cope with stress. Investigating the metabolic pathways of proline would deepen our understanding for future molecular breeding or genetic engineering efforts. Therefore, the aim of this study was to explore the metabolic and catabolic pathways of proline ...

2015年7月19日 · Proline is a proteogenic amino acid and accumulates both under stress and non-stress conditions as a beneficial solute in plants. Recent discoveries point out that proline plays an important role in plant growth and differentiation across life cycle. It is a key determinant of many cell wall proteins that plays important roles in plant development.

In this chapter, we will discuss the metabolism of proline accumulation and its role in stress tolerance in plants. Existing literature indicates that despite acting as an osmolyte, proline also plays important roles during stress as a metal chelator and an antioxidative defence molecule.

2022年10月23日 · Proline (Pro), a key organic osmolyte, generally accumulates in plants under harsh environmental stress. The over-accumulation of Pro in most plants under abiotic stress has been linked to elevated activities of vital enzymes and the expression of corresponding Pro metabolism genes or inhibition in Pro catabolism.

Proline, an amino acid, plays a highly beneficial role in plants exposed to various stress conditions. Besides acting as an excellent osmolyte, proline plays three major roles during stress, i.e., as a metal chelator, an antioxidative defense molecule and a signaling molecule.

2022年3月2日 · Overproduction of proline in plant cells contributes to maintaining cellular homeostasis, water uptake, osmotic adjustment and redox balance to restore the cell structures and mitigate oxidative damage.

2022年1月1日 · Proline is a multifunctional amino acid that is accumulated in high concentrations in plants under various stress conditions. Proline accumulation is intimately connected to many cellular processes, such as osmotic pressure, energy status, nutrient availability, changes in redox balance, and defenses against pathogens.

2024年12月24日 · Recent reports have shown that proline metabolism, in addition to supporting reproductive development, can modulate root meristem size by controlling ROS accumulation and distribution in the root meristem. The dynamic interplay between proline and ROS highlights a sophisticated regulatory network essential for plant resilience and survival.

2025年2月18日 · Salinity stress induces an increase in proline content, primarily within the free amino acid pool in plants, as well as in proline or hydroxyproline levels in proteins . The primary cause of soil salinization is the accumulation of water-soluble salts in the root zone, including potassium (K⁺), sodium (Na⁺), chloride (Cl⁻), and sulfate ...

2 天之前 · Proline is an essential osmoregulatory compound that is widely found in plants. The stability of osmotic pressure within and outside the cell membrane is maintained by increasing proline levels, which enhances the water-holding capacity of the cells and prevents the rupture of the cell membrane [ 13 ].