Article
Adaptation to oxygen: role of terminal oxidases in photosynthesis initiation in the purple photosynthetic bacterium, Rubrivivax gelatinosus.
The Journal of biological chemistry - 25 Jun 2010
Hassani Bahia Khalfaoui, Steunou Anne-Soisig, Liotenberg Sylviane, Reiss-Husson Françoise, Astier Chantal, Ouchane Soufian
Abstract excerpt
The appearance of oxygen in the Earth's atmosphere via oxygenic photosynthesis required strict anaerobes and obligate phototrophs to cope with the presence of this toxic molecule. Here we show that in the anoxygenic phototroph Rubrivivax gelatinosus, the terminal oxidases (cbb(3), bd, and caa(3)) expand the range of ambient oxygen tensions under which the organism can initiate photosynthesis. Unlike the wild...
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