Fig. 3
From: regO: a novel locus in the regulation of tetrapyrrole biosynthesis in Rhodospirillum rubrum
Absorption spectra of whole cultures of Rsp. Rubrum. A Absorption spectra of whole cultures of the wild-type strain of Rsp. rubrum grown phototrophically anaerobically (dashed line), chemophototrophically, grown aerobically (no photosynthetic membranes) (dotted line) and the mutant strain Rsp. rubrum REGO- (solid line) grown anaerobically in the dark at 30 °C in presence of DMSO. B (a) Absorption spectrum of whole culture of wild-type strain of Rsp. rubrum grown phototrophically. (b) Absorption spectrum of Rsp. rubrum of the complementation strpRK-REGO grown phototrophically is also shown. (c) Wild-type Rsp. rubrum grown chemophototrophically in presence of DMSO as an external electron acceptor