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  • Title: Further similarities between chloroplast and bacterial ribosomes.
    Author: Ellis RJ.
    Journal: Planta; 1970 Dec; 91(4):329-35. PubMed ID: 24500097.
    Abstract:
    Protein synthesis by chloroplasts isolated under aseptic conditions from Phaseolus vulgaris leaves is inhibited by the bacterial antibiotics spectinomycin, lincomycin, and erythromycin; that by chloroplasts from Nicotiana tabacum leaves is inhibited by spectinomycin and lincomycin but not by erythromycin. Protein synthesis by cytoplasmic ribosomes from plants and animals is not inhibited by these compounds, nor is amino acid activation by the soluble fraction from bean chloroplasts. These results suggest that chloroplast ribosomes possess sites which bind several unrelated bacterial antibiotics and support the idea that chloroplasts originated from prokaryotic cells. These antibiotics may be useful in studying the process of chloroplast formation in intact cells.
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