The effect of actinomycin D on nucleolar
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Sameshima, M. ;Shiokawa, K. ;Kawakami, I.
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Article
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1970
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John Wiley and Sons
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English
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## Abstract Electron microscopic examinations revealed drastic effects of actinomycin D on nucleolar formation in isolated cells of __Xenopus laevis__ embryos. The nucleoli in newly isolated cells of early gastrulae were composed solely of a fibrous component. After culture for two to five hours in