Analysis of the Involvement of the Isoleucine Biosynthesis Pathway in Photoheterotrophic Metabolism of Rhodospirillum rubrum.

ABSTRACT: Purple non-sulfur bacteria (PNSB) are recognized as a highly versatile group of bacteria that assimilate a broad range of carbon sources. Growing heterotrophically, PNSB such as Rhodospirillum rubrum (Rs. rubrum) generate reduced equivalents that are used for biomass production. However, under photoheterotrophic conditions, more reduced electron carriers than required to produce biomass are generated. The excess of reduced equivalents still needs to be oxidized for the metabolism to optimally operate. These metabolic reactions are known as electron sinks. Most PNSB rely on the CO₂-fixing Calvin cycle and H₂ production to oxidize these reduced equivalents. In addition to these well-described electron sinks, the involvement of some pathways, such as polyhy

SUBMITTER: Bayon-Vicente G 

PROVIDER: S-EPMC8490811 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature