A study on senescence in tobacco leaf disks II. Chloroplast and cytoplasmic rRNAs |
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Authors: | Takegami Tsutomu |
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Affiliation: | Biological Institute, Faculty of Science, Nagoya University Nagoya, Japan |
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Abstract: | In tobacco leaf disks floated on water in the dark, chloroplastrRNA (23S and 16S rRNA) decreased rapidly, and this decreasewas inhibited by 106M BA. The cytoplasmic rRNA (25S and18S rRNA) level changed little during a few days of dark incubationregardless of the presence or absence of BA. Cycloheximide at105 M completely removed the effect of BA. ChloroplastrRNA and cytoplasmic rRNA respectively decreased and increasedduring a 4-day culture in the light, and BA had no influenceon these light effects. (Received December 2, 1974; ) |
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