Abstract
Facultative phototrophic bacteria such as Rhodobacter (Rb.) capsulatus can adapt to different modes of energy metabolism. Under anaerobic growth conditions light energy is captured by the antenna system of the photosynthetic apparatus and transduced into an electrochemical proton gradient across the membrane, which can be used for ATP production. In dark cultures proton motive force is generated on the expense of substrate oxidation by the respiratory chain under aerobic conditions with oxygen as electron acceptor and under anaerobic conditions with dimethyl sulfoxide, trimethylamine N-oxide, nitrate or nitrous oxide as alternative electron acceptors (Ferguson et al. 1987).
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Oberlé, B., Tichy, HV., Hornberger, U., Drews, G. (1990). Regulation of Formation of Photosynthetic Light-Harvesting Complexes in Rhodobacter Capsulatus . In: Drews, G., Dawes, E.A. (eds) Molecular Biology of Membrane-Bound Complexes in Phototrophic Bacteria. FEMS Symposium. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0893-6_11
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DOI: https://doi.org/10.1007/978-1-4757-0893-6_11
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