The control of chloroplast division in Funaria hygrometrica I. Patterns of nucleic acid, protein and lipid synthesis

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概要

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• In the cycle of chloroplast and cell division initiated by removal of the leaves of Funaria hygrometrica from the stem, replication of nuclear DNA is followed by chloroplast DNA replication and the formation of dumb-bell-shaped chloroplasts. The initial stages of dedifferentiation occurring prior to regeneration have been followed using ^6lt;14>CO_2, radioactive-precursors of nucleic acid synthesis and various antibiotics, in an attempt to clarify the roles of nuclear and chloroplast DNA during chloroplast division. Results indicate that the synthesis of chloroplast lipids is dependent on the transcription of chloroplast DNA and on protein synthesis on chloroplast ribosomes. The nucleus transcribes messenger RNA for the formation of DNA-polymerase, the mRNA is translated on cytoplasmic ribosomes. This suggests that the chloroplast is a semi-autonomous organelle, dependent for its division upon the nucleus only for DNA-polymerase.

• 日本植物生理学会の論文

著者

• Taylor A.

  Plant Physiology Division D. S. I. R.

• GILES K.

  Plant Physiology Division, D. S. I. R.

• Giles K.

  Plant Physiology Division D. S. I. R.

関連論文

• The control of chloroplast division in Funaria hygrometrica I. Patterns of nucleic acid, protein and lipid synthesis
• The control of chloroplast division in Funaria hygrometrica II. The effects of kinetin and indole-acetic acid on nucleic acids

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