ArticleNature microbiology2022
Single-cell measurements and modelling reveal substantial organic carbon acquisition by Prochlorococcus.
Article in Nature microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed.
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- Ecosystem relocation on Snowball Earth: Polar-alpine ancestry of the extant surface biosphere?Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Seasonal Variations of Community Structure and Functional Genes ofMicroorganisms · 2025Article
- Mapping the metagenomic diversity of the multi-kingdom glacier-fed stream microbiome.Nature microbiology · 2025Article
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- Overlooked Vital Role of Persistent Algae-Bacteria Interaction in Ocean Recalcitrant Carbon Sequestration and Its Response to Ocean Warming.Global change biology · 2024Article
- Mixed and membrane-separated culturing of synthetic cyanobacteria-yeast consortia reveals metabolic cross-talk mimicking natural cyanolichens.Scientific reports · 2024Article
- Viperin immunity evolved across the tree of life through serial innovations on a conserved scaffold.Nature ecology & evolution · 2024Article
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- Disentangling top-down drivers of mortality underlying diel population dynamics of Prochlorococcus in the North Pacific Subtropical Gyre.Nature communications · 2024Article
- High amino acid osmotrophic incorporation by marine eukaryotic phytoplankton revealed by click chemistry.ISME communications · 2024Article
- Emergence of metabolic coupling to the heterotrophISME communications · 2024Article
- Mixotrophy in depth.Nature microbiology · 2022Article
- Differential Timing for Glucose Assimilation inMicrobiology spectrum · 2022Article
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12 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Marine phytoplankton are responsible for about half of the photosynthesis on Earth. Many are mixotrophs, combining photosynthesis with heterotrophic assimilation of organic carbon, but the relative contribution of these two lifestyles is unclear. Here single-cell measurements reveal that Prochlorococcus at the base of the photic zone in the Eastern Mediterranean Sea obtain only ~20% of carbon required for growth by photosynthesis. This is supported by laboratory-calibrated calculations based on photo-physiology parameters and compared with in situ growth rates. Agent-based simulations show that mixotrophic cells could grow tens of metres deeper than obligate photo-autotrophs, deepening the nutricline by ~20 m. Time series from the North Atlantic and North Pacific indicate that, during thermal stratification, on average 8-10% of the Prochlorococcus cells live without enough light to sustain obligate photo-autotrophic populations. Together, these results suggest that mixotrophy underpins the ecological success of a large fraction of the global Prochlorococcus population and its collective genetic diversity.
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