Studies on the Cell Wall of Chlorella III. : Incorporation of Photosynthetically Fixed Carbon into Cell Walls of Synchronously Growing Cells of Chlorella ellipsoidea

概要

論文の詳細を見る
The carbon metabolism in cell walls of Chlorella ellipsoidea was studied by following ^<14>C incorporation into cell wall constituents in photosynthesizing, synchronously growing cells. The rate of incorporation was higher at an early growth phase of the cell cycle. The ^<14>C was incorporated into both the major cell wall constituents, hemicellulose and 'rigid wall', and the radioactivity in the latter was distributed into its two components, glucosamine and amino acids. In pulse-chase experiments, the ^<14>C fixed photosynthetically in the preceding cell cycle was rapidly transferred into the cell wall constituents at the early growth phase of the ongoing cell cycle, and thereafter was gradually released from the cell walls, although the total amount of ^<14>C in the cells remained constant. It was concluded that the cell wall constituents are turned over during the growth phase of the algal cell cycle, and that the cell wall metabolism in the ongoing cell cycle is closely connected with the carbon metabolisln in the preceding cell cycle.
日本植物生理学会の論文