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클로렐라의 동조배양법에 의한 세포분열의 생리학적 연구 1

Physiological studies on cell dividion by the technique of synchronous culture of Chlorella (I); On the changes in Phosphorylation of the cells during the life cycle

미생물학회지 1969년 7권 1호 p.1 ~ 9
이영녹, 이종삼,
소속 상세정보
이영녹 (  ) - 고려대학교 생물학과
이종삼 (  ) - 고려대학교 이공대학 생물학과

Abstract


Changes in the phosphorylation of Chlorella cells during the life cycle the autotrophic and micotrophic synchronous culture were followed under the light and dark. 1. In the autotrophic culture of Chlorella the amounts of esterified phosphate compounds of the algal cell under the light increased during the growing period and decreased strikingly in the ripening period showing a peak at the L₁-cell stage. 2. The amount of total esterified phosphate compounds of the cell under the dark, however, decreased during the growing period and then kept fairly constant during the ripening and division periods showing the greatest activity of the oxidative phosphorylation in the early growing stage. 3. It is presumed that the energy requirement of the dividing algal cell in the autotrophic culture is fulfilled prior to the nuclear division mostly by the photosynthetic phosphorylation. 4. In the mixotrophic culture, the amount of esterified phosphate compounds of the algal cells under the light increased during the growing period and decreased during the late ripening and early division periods showing a peak in the L₂-cell stage as in the case of the phosphorylation under the dark. 5. The phosphorylation of the fell grown in the glucose medium is more active under the dark than under the light in the stages of the growing and early ripening periods. 6. It is considered that the excess glucose in the algal cell not only promotes the oxidative phosphorylation but also inhibits the photosynthetic phosphorylation of the cell. 7. It is presumed that the energy requirement of the dividing algal cell in the glucose medium is fulfilled prior to the nuclear division by the combined action of oxidative and photosynthetic phosphorylation, mostly by the oxidative phosphorylation.

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