Minimal transcriptional regulation of horizontally transferred photosynthesis genes in phototrophic bacterium Gemmatimonas phototrophica.

ABSTRACT: The first phototrophic member of the bacterial phylum Gemmatimonadota, Gemmatimonas phototrophica AP64^T, received all its photosynthesis genes via distant horizontal gene transfer from a purple bacterium. Here, we investigated how these acquired genes, which are tightly controlled by oxygen and light in the ancestor, are integrated into the regulatory system of its new host. G. phototrophica grew well under aerobic and semiaerobic conditions, with almost no difference in gene expression. Under aerobic conditions, the growth of G. phototrophica was optimal at 80 µmol photon m^-2 s^-1, while higher light intensities had an inhibitory effect. The transcriptome showed only a minimal response to the dark-light shift at optimal light int

SUBMITTER: Kopejtka K 

PROVIDER: S-EPMC11406998 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature