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. 1986 Aug;167(2):655-9.
doi: 10.1128/jb.167.2.655-659.1986.

Oxygen regulation of development of the photosynthetic membrane system in Chloroflexus aurantiacus

J M Foster, T E Redlinger, R E Blankenship, R C Fuller

Oxygen regulation of development of the photosynthetic membrane system in Chloroflexus aurantiacus

J M Foster et al. J Bacteriol. 1986 Aug.

Abstract

Oxygen levels which control induction of the assembly of the pigment-protein photosynthetic polypeptides in dark-grown Chloroflexus aurantiacus were determined. The induction signal by low-oxygen tension is not directly related to the respiratory competence of these photosynthetic cells. Cytochrome c554, the primary electron donor to P865+ of the reaction center, is not present in dark-grown respiratory cells but is induced in parallel with bacteriochlorophylls a and c and at similar oxygen partial pressure. The development of these components of the photosynthetic apparatus and its electron transport chain is completely independent of the presence of any detectable light or bacteriochlorophyll c or a pigments in C. aurantiacus.

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