Carbon dioxide fixation by cultured cells of Marchantia polymorpha

Abstract

Chlorophyous, cultured cells of Marchantia polymorpha (HYA- 2F cell line) grew actively under photoautotrophic conditions. The specific growth rate (μ_{_??_}) and the doubling time were 0.69days^-1 and 1.0 days respectively under the condition of 7000 lux luminous intensity, and 1% carbon dioxide enriched atmosphere at 25°C, Carbon dioxide absorption was estimated and it was revealed that the absorption rate was the highest at linear phase. The maximum carbon dioxide fixation rate was 238 mg·C/day·l in linear phase when population density was high enough that the incident light was almost completely absorbed by the cell suspension.