Abstract
This paper describes a plastid preparation from spinac capable of forming δ-aminolevulinate from α-ketoglutarate. Isolated plastids from immature leaves had this ability while those from mature leaves did not. Radioactivity from α-ketoglutarate-1-14C and α-ketoglutarate-U-14C was incorporated into δ-aminolevulinate to an equal extent. The ability to form δ-aminolevulinate was associated with intact plastids rather than with mitochondria or microbodies. The formation of δ-aminolevulinate was stimulated by light and had a broad pH suptimum from 6.5 to 8.0. The accumulation of δ-aminolevulinate was enhanced by the presence of levulinate, an inhibitor of δ-aminolevulinate dehydratase.
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Gough, S.P., Kannangara, C.G. Synthesis of δ-aminolevulinic acid by isolated plastids. Carlsberg Res. Commun. 41, 183–190 (1976). https://doi.org/10.1007/BF02906541
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DOI: https://doi.org/10.1007/BF02906541