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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
The Korean Journal of Microbiology
Journal Basic Information
Journal DOI :
The Microbiological Society of Korea
Editor in Chief :
Volume & Issues
Volume 4, Issue 2 - Oct 1966
Volume 4, Issue 1 - Apr 1966
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Electron Microscopic studies on the Ultrastrucure of Pyrenoid and Cell Wall in Chlorella Cells.
The Korean Journal of Microbiology, volume 4, issue 1, 1966, Pages 1~13
The author examined for observing the structures of pyrenoid and cell wall of three strains of Chlorella ellipsoidea and relation of pyrenoid to starch grain formation at the ultrastructure level. 1. The development of pyrenoid of Chlorella species from the time of its initiation and its subdetail sequent activities are described in some pictures. 2. Close correlation between the findings of light microscopy and electron microscopy is proved. 3. The pyrenoid is a dynamic organellae which continues to change its appearance thoughout the development of the Chlorella cell. 4. The starch grains are continously formed by deposition of carbohydrate within the chloroplast with the aid of pyrenoid factors. 5. Some parental starch grains are passed on the daughter cell during cell division. 6. The Da stage cells contain only chlaroplast without pyrenoid matrix. In Da stage a pyrenoid is surrounded by starch and starch grains appear in chloroplast lamellae. In
stages, large starch grains of lens form accumulate in cell. In
stage pyrenoid disappears for a time and starch grains are scattered. In cell division stage starch grains are divided into four groups. In
stage, pyrenoid substance appears temporarily and disappears soon. At this stage the cell is constituted of Dn cell containing chloroplast only. 7. The cellular boundary of JE strain except Y 815 and Y 511 strain contains 250.angs. intermediate layer of unknown chemical composition between the fibrillar cellulose wall and the out capsule layer.
and Total P in
-labeled Chlorella Cells in a Standard "Cold" Medium.
The Korean Journal of Microbiology, volume 4, issue 1, 1966, Pages 14~20
-labeled Chlorella cells were further grown in a standard "cold" medium and aliquots of the algal cells were taken out at the beginning of, and at intervals during the culture, and subjected to analyze the contents of
P and total P in various fractions of the cell constituents. 2. When the
--labeled algae were grown in a normal "cold" medium, the P-contents in the fractions of DNA and protein increased. In the meantime the
- in acid-insoluble polyphosphate fraction decreased considerably, while that in RNA-polyphosphate complex significantly increased. 3. It was inferred that, under the experimental conditions of the present study, the phosphorus in polyphosphate seems to be transferred to RNA polyposphate complex and the phosphorus used in the synthesis of DNA and protein was, directly or indirectly, taken from those fractions above.ose fractions above.