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Celis, H; Garcia-Contreras, R; Romero, I (2004)

IMPORTANCE OF RHODOSPIRILLUM RUBRUM H+-PYROPHOSPHATASE UNDER LOW-ENERGY CONDITIONS

J BACTERIOL 186(19):6651-6655
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The physiological role of the membrane-bound pyrophosphatase of Rhodospirillum rubrum was investigated by the characterization of a mutant strain. Comparisons of growth levels between the wild type and the mutant under different low-potential conditions and during transitions between different metabolisms indicate that this enzyme provides R. rubrum with an alternative energy source that is important for growth in low-energy states.