Interaction of mitochondrial and photosynthetic electron transfer systems

Photosynthetic organisms have to deal with changing light regimes (intensity and quality), thus require efficient mechanisms to regulate photosynthesis and subsequent metabolism in order to prevent photo-oxidative damage of the photosynthetic machinery. In this work focus was set to investigate the relevance of mitochondrial proteins, i.e. Alternative Oxidase 1 (AOXI) in ambient light conditions. Therefore, the aox1 mutant was utilized and compared to the cw15 Wild Type strain. Furthermore, the dum1 (mitochondrial - Complex III) mutant was used to grant insights into the importance of functional mitochondria for the whole metabolism.