Affiliation:
1. From the Biology Department, University of California, Santa Barbara, California 93106
Abstract
The chloroplasts of internodal cells of Nitella are fixed to a stationary layer of cytoplasm whereas the nuclei and most of the cytoplasm stream along the longitudinal axis. Isolated internodal cells were maintained for several days with half the cell kept in the dark, the other half kept under continuous light. Photosynthetic activity of the cells was checked by placing the cell evenly illuminated in a 14CO2 atmosphere. Chloroplasts of the previously dark half of the cell were found to fix only half as much CO2 as the chloroplasts which were continuously illuminated. These results are discussed in relation to the possible direct effect of light on biosynthetic reactions of mature chloroplasts.
Publisher
Rockefeller University Press
Cited by
4 articles.
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1. Photosynthesis Bibliography volume 1 1966/1970;Photosynthesis Bibliography volume 1 1966/1970;1974
2. Control of photosynthesis by Mg2+;Archives of Biochemistry and Biophysics;1971-08
3. CHLOROPLAST DEVELOPMENT IN CHAROPHYCEAE;Journal of Cell Biology;1971-06-01
4. Biosynthesis of proteins involved with photosynthetic activity in enucleated acetabularia sp;Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis;1970-10