Photosynthetic electron flow affects H2O2 signaling by inactivation of catalase in Chlamydomonas reinhardtii

@article{Shao2008PhotosyntheticEF,
  title={Photosynthetic electron flow affects H2O2 signaling by inactivation of catalase in Chlamydomonas reinhardtii},
  author={Ning Shao and Christoph F. Beck and St{\'e}phane D. Lemaire and Anja Krieger-Liszkay},
  journal={Planta},
  year={2008},
  volume={228},
  pages={1055 - 1066}
}
A specific signaling role for H2O2 in Chlamydomonas reinhardtii was demonstrated by the definition of a promoter that specifically responded to this ROS. Expression of a nuclear-encoded reporter gene driven by this promoter was shown to depend not only on the level of exogenously added H2O2 but also on light. In the dark, the induction of the reporter gene by H2O2 was much lower than in the light. This lower induction was correlated with an accelerated disappearance of H2O2 from the culture… CONTINUE READING