Plant and Cell Physiology, 1986, Vol. 27, No. 4 737-739
© 1986
Short Communication |
Ultrastructure of Dunaliella tertiolecta Cells Grown under Low and High CO2 Concentrations1
Institute of Applied Microbiology, University of Tokyo Bunkyo-ku, Tokyo 113, Japan
1 Reprint request should be sent to S. Miyachi.
The cells of Dunaliella tertiolecta grown under ordinary air (low-CO2 cells) had a well developed pyrenoid with many more starch granules than those grown under air enriched with CO2 (high-CO2 cells). The chloroplast was located close to the plasmamembrane in low-CO2 cells, while that in high-CO2 cells was located in the inner area of the cells. Chloroplast envelope was electronically denser in low-CO2 cells than in high-CO2 cells, while the opposite effect of CO2 was observed for the plasmamembrane.
2On leave from Institute of Biology, University of Novi Sad, Novi Sad, Yugoslavia.
(Received November 7, 1985; Accepted March 5, 1986)
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