Studies on nucleic acids in chloroplasts isolated from Chlorella protothecoides

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概要

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• 1. Subcellular fractions of Chlorella protothecoides were separated by fractional centrifugation of the algal cell homogenate in mixtures of cyclohexane and CCl_4. The base composition, melting profiles and IRC-50 column chromatographic patterns of DNA preparations from the chloroplast and non-chloroplast fractions were examined. It was shown that the algal chloroplast contains at least one DNA species which is different from the nuclear DNA. 2. RNA preparations from the subcellular fractions were subjected to MAK column chromatography, sucrose density gradient centrifugation and analysis for base composition. It was demonstrated that the chloroplast contains ribosomal RNA and soluble RNA. Two components of the chloroplast ribosomal RNA were found to have the same patterns as those of the E. coli ribosomal RNA in MAK column chromatography and zone centrifugation. The major component of the chloroplast ribosomal RNA was distinctly different from that of the non-chloroplastic (cytoplasmic) ribosomal RNA in all properties examined.

• 日本植物生理学会の論文

著者

• Hase Eiji

  Tokugawa Institute For Biological Research

• Hase Eiji

  Tokugawa Institute For Biological Research Tokyo

• OSHIO YUTAKA

  Institute of Applied Microbiology, University of Tokyo

• Oshio Yutaka

  Institute Of Applied Microbiology University Of Tokyo

関連論文

• Studies on nucleic acids in chloroplasts isolated from Chlorella protothecoides
• Studies on ribonucleic acids from Chlorella protothecoides with special reference to the degradation of chloroplast RNA during the process of "glucose-bleaching"
• Acetate metabolism in the process of "acetate-bleaching" of Chlorella protothecoides
• Further studies on the metabolism of glucose in the process of "glucose-bleaching" of Chlorella protothecoides
• Changes of ribulose 1,5-diphosphate carboxylase level during the processes of degeneration and regeneration of chloroplasts in Chlorella protothecoides
• Studies on red pigments excreted by cells of Chlorella protothecoides during the process of bleaching induced by glucose or acetate II. Mode of formation of the red pigments
• A note on ribosomes in cells of Chlorella protothecoides
• Effect of cycloheximide on the process of "glucose-bleaching" in Chlorella protothecoides
• Studies on red pigments excreted by cells of Chlorella protothecoides during the process of bleaching induced by glucose or acetate I. Chemical properties of the red pigments

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