Electron microscope studies on the vegetative cellular life cycle of Chlamydomonas reinhardi Dangeard in synchronous culture I. Some characteristics of changes in subcellular structures during the cell cycle, especially in formation of giant mitochondria |
| |
Authors: | Osafune, Tetsuaki Mihara, Sayoko Hase, Eiji Ohkuro, Isamu |
| |
Affiliation: | 2Department of Microbiology, Tokyo Medical College Tokyo 160, Japan 3Institute of Applied Microbiology, University of Tokyo Tokyo 113, Japan |
| |
Abstract: | Changes in subcellular structures during the entire vegetativecell cycle of Chlamydomonas reinhardi Dangeard in synchronousculture were followed with an electron microscope. Giant mitochondriaof various shapes were temporarily formed, probably by fusionof smaller mitochondria, in the algal cells at an intermediatestage of the growth phase of the cell cycle. Formation of giantmitochondria was accompanied by a marked decrease in the oxygen-uptakeactivity of cells. Giant mitochondria divided into smaller formsconcurrently with a re-increase in the oxygen-uptake activityof cells. Some characteristics of changes in the structuresof chloroplast, the nucleus, the endoplasmic reticula, flagellaand dictyosomes are described. 1 This work was reported in part at the 35th Annual Meetingof the Botanical Society of Japan, October 1970. (Received October 13, 1971; ) |
| |
Keywords: | |
本文献已被 Oxford 等数据库收录! |
|