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  • Title: The effect of light and inhibitors on chloroplast and cytoplasmic RNA synthesis.
    Author: Ingle J.
    Journal: Plant Physiol; 1968 Nov; 43(11):1850-4. PubMed ID: 5699149.
    Abstract:
    Chloroplast RNA is synthesized in dark-grown radish cotyledons at about one-third the rate of that in the light. The synthesis, however, continues for longer in the dark and the percentage of chloroplast RNA can approach that in light-grown tissue. Light stimulates the synthesis and accumulation of both cytoplasmic and chloroplast RNA, but shows a 4-fold greater stimulation of the chloroplast RNA. Chloramphenicol, streptomycin and cycloheximide inhibit the synthesis of chloroplast RNA with little effect on cytoplasmic RNA. 5-Fluorouracil inhibits the synthesis of cytoplasmic more than chloroplast RNA. Synthesis of the 0.56 x 10(6) mol wt chloroplast RNA is inhibited much less than the other ribosomal RNA components by actinomycin D.
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