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Neurospora의 生育時期에 따른 呼吸態의 變化와 紫外線 感受性과의 相關關係

Changes in Respiratory Activity and the Sensitivity to Ultraviolet Light of Neurospora Cells at Different Growing Stages

한국식물학회지 1963년 6권 4호 p.1 ~ 4
이영녹,
소속 상세정보
이영녹 (  ) - 고려대학교 생물학과

Abstract


LEE, Yung Nok (Dept. of Biology, Korea University) Changes in respiratory activity and the sensitivity to ultraviole light of Neurospora cells at different growing stages. Kor. Jour. Bot. Ⅵ (4) : 1-4. 1963.
Using conidia of Neurospora, changes in respiratory activities and the sensitivity to the ultraviolet light of the cells at different growing stages were measured by manometric methods, and the correlation between them was observed. Efficiency in the utilization of various carbon sources, such as, glucose, sucrose, maltose, starch and sodium acetate, in growth and exogenous respiration of N. crassa was also determined.
Growth rate of N. crassa was decreased considerably in the medium containing sodium acetate than in the glucose medium and was almost zero in the lactose medium, whereas the utilization of sucrose. maltose and starch was very high, as that of glucose. Respiratory activities of the cells veried considerably depending upon their different growing stages. Actively growing hyphae exhibited the greatest activity in exogenous glucose respiration, followed by germinating and activated conidia in decreasing order.
There was no proportional relationship between the dose of ultraviolet light irradiated and its effect on the respiratory activity of the cells, though the more the dose of ultraviolet light, the more the injuri. The sensitivity of the cells to ultraviolet light varied with the different respiratory activities of the cells linked to the deve1opmental stages. In general, the more actively glowing cells having high respiratory activities exhibited the more serious injury.

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