biostudies-literatureUnknown10(5)Gomez-Consarnau LProteorhodopsins (PR) are light-driven proton pumps widely distributed in bacterioplankton. Although they have been thoroughly studied for more than a decade, it is still unclear how the proton motive force (pmf) generated by PR is used in most organisms. Notably, very few PR-containing bacteria show growth enhancement in the light. It has been suggested that the presence of specific functions within a genome may define the different PR-driven light responses. Thus, comparing closely related organisms that respond differently to light is an ideal setup to identify the mechanisms involved in PR light-enhanced growth. Here, we analyzed the transcriptomes of three PR-harboring Flavobacteria strains of the genus Dokdonia: Dokdonia donghaensis DSW-1(T), Dokdonia MED134 and Dokdonia PRO95, grownThe ISME journal1102-12https://www.ebi.ac.uk/biostudies/studies/S-EPMC5029205biostudies-literatureProteorhodopsin light-enhanced growth linked to vitamin-B1 acquisition in marine Flavobacteria.PMC5029205Fuhrman JAGonzalez JMSanudo-Wilhelmy SAWagner-Dobler IRiedel TJaenicke SGomez-Consarnau LfalseProteorhodopsin light-enhanced growth linked to vitamin-B1 acquisition in marine Flavobacteria.Proteorhodopsins (PR) are light-driven proton pumps widely distributed in bacterioplankton. Although they have been thoroughly studied for more than a decade, it is still unclear how the proton motive force (pmf) generated by PR is used in most organisms. Notably, very few PR-containing bacteria show growth enhancement in the light. It has been suggested that the presence of specific functions within a genome may define the different PR-driven light responses. Thus, comparing closely related organisms that respond differently to light is an ideal setup to identify the mechanisms involved in PR light-enhanced growth. Here, we analyzed the transcriptomes of three PR-harboring Flavobacteria strains of the genus Dokdonia: Dokdonia donghaensis DSW-1(T), Dokdonia MED134 and Dokdonia PRO95, grown2016-01-01T00:00:00Z2016 May2026-05-03T23:29:17.815Z2019-03-27T02:24:41ZS-EPMC50292052657468710.1038/ismej.2015.196