Legumes, characterized by their ability to form symbiotic relationships with nitrogen-fixing bacteria, play crucial roles in agriculture, ecology and human nutrition. Phosphatidylethanolamine-binding proteins (PEBPs) are the key genetic players that contribute to the diverse biological functions of legumes. In this review, we summarize the current understanding of important roles of PEBP genes in legumes, including flowering, inflorescence architecture, seed development and nodulation. We also delve into PEBP regulatory mechanisms and effects on plant growth, development, and adaptation to the environment. Furthermore, we highlight their potential biotechnological applications for crop improvement and promoting sustainable agriculture. This review emphasizes the multifaceted roles of PEBP genes, shedding light on their significance in legume biology and their potential for sustainable productive farming.
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