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Updated: Aug 18, 2026
Detecting, Visualizing and Quantitating the Generation of Reactive Oxygen Species in an Amoeba Model System
Published on: November 5, 2013
Reactive oxygen species and antioxidant enzymes activity of Anabaena sp. PCC 7120 (Cyanobacterium) under simulated
Gen-bao Li1, Yong-ding Liu, Gao-hong Wang
1Institute of Hydrobiology, Chinese Academy of Sciences, Luojiashan, Wuhan, China.
Abstract:
It was found that reactive oxygen species in Anabaena cells increased under simulated microgravity provided by clinostat. Activities of intracellular antioxidant enzymes, such as superoxide dismutase, catalase were higher than those in the controlled samples during the 7 days' experiment. However, the contents of glutathione [correction of gluathione], an intracellular antioxidant, decreased in comparison with the controlled samples. The results suggested that microgravity provided by clinostat might break the oxidative/antioxidative balance. It indicated a protective mechanism in algal cells, that the total antioxidant system activity increased, which might play an important role for algal cells to adapt the environmental stress of microgravity.
