In plants, de novo synthesis of all three basic amino acids (Arg, His and Lys) occurs entirely in the plastid stroma. Therefore, export of these essential primary metabolites via membrane-intrinsic proteins of the plastid envelope is crucial for plant growth, development and fitness.
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Philippar, K. Reticulata weaves the metabolic net. Nat. Plants 11, 1710–1711 (2025). https://doi.org/10.1038/s41477-025-02100-y
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DOI: https://doi.org/10.1038/s41477-025-02100-y