Hawaii Dissolved Organic Matter (HIDOM) microcosm perturbation experiments. marine metagenome

Marine dissolved organic matter (DOM) contains nearly as much carbon as the Earth’s atmosphere. To investigate the roles of planktonic marine microbes in the biogeochemical cycling of DOM, we followed the transcriptional responses of a surface water microbial assemblage to DOM derived from an axenic culture of Prochlorococcus marinus and high-molecular weight DOM concentrated from nearby surface waters.