Inhibitory effect of oxygen accumulation on the growth ofSpirulina platensis

✍ Scribed by Facundo J. Marquez; Ken Sasaki; Naomichi Nishio; Shiro Nagai

• Book ID: 104632828
• Publisher: Springer Netherlands
• Year: 1995
• Tongue: English
• Weight: 261 KB
• Volume: 17
• Category: Article
• ISSN: 0141-5492
• DOI: 10.1007/bf00127993

✦ Synopsis

The growth of Spirulina platensis was studied in a light-limited culture under various dissolved oxygen (DO) concentrations. At high DO concentration, e.g. at 1.25 mM DO, the growth rate was decreased up to 36 % compared with that of 0.063 mM DO. The retarded growth rate at high DO concentrations seemed to be coupled with the degeneration of photosynthetic activity in terms of 02 evolution. Under higher DO concentrations, superoxide dismutase and ascorbate peroxidase activities tended to increase, While the contents of photosynthetic pigment, such phycocyanin, carotenoid and chlorophyll-a decreased distinctly.