Dysregulation of photosynthetic genes in oceanic Prochlorococcus populations exposed to organic pollutants.

ABSTRACT: The impact of organic pollutants on oceanic ecosystem functioning is largely unknown. Prochlorococcus, the most abundant known photosynthetic organism on Earth, has been suggested to be especially sensible to exposure to organic pollutants, but the sub-lethal effects of organic pollutants on its photosynthetic function at environmentally relevant concentrations and mixtures remain unexplored. Here we show the modulation of the expression of two photosynthetic genes, rbcL (RuBisCO large subunit) and psbA (PSII D1 protein), of oceanic populations of Prochlorococcus from the Atlantic, Indian and Pacific Oceans when exposed to mixtures of organic pollutants consisting of the non-polar fraction of a seawater extract. This mixture included most persistent organic pollutants, semivolatile aromati

SUBMITTER: Fernandez-Pinos MC 

PROVIDER: S-EPMC5556013 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature