ArticleProceedings of the National Academy of Sciences of the United States of America2015
Cryptic carbon and sulfur cycling between surface ocean plankton.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 172 papers.
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Who cites it
172 citing papers in PubMed, 414 citations in OpenAlex.
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- Bacterial sulfoquinovose cycling across aquatic ecosystems.FEMS microbiology reviews · 2026Review
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- Interactions with bacteria shape diatom adaptation to carbon concentration changes.Nature communications · 2025Article
- Widespread potential for phototrophy and convergent reduction of lifecycle complexity in the dimorphic order Caulobacterales.Nature communications · 2025Article
- Cosmopolitan marine bacteria facilitate a vast phytoplankton-derived sulfonate-based carbon flow through sulfoquinovosidases.Nature communications · 2025Article
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- Viruses are a key regulator of the microbial carbon cycle in the deep-sea biosphere.Environmental science and ecotechnology · 2025Article
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- Iron limitation triggers roseoceramide biosynthesis and membrane remodeling in marine roseobacter.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
112 more citing papers are in PubMed but not listed here.
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Authors and funding
12 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
About half the carbon fixed by phytoplankton in the ocean is taken up and metabolized by marine bacteria, a transfer that is mediated through the seawater dissolved organic carbon (DOC) pool. The chemical complexity of marine DOC, along with a poor understanding of which compounds form the basis of trophic interactions between bacteria and phytoplankton, have impeded efforts to identify key currencies of this carbon cycle link. Here, we used transcriptional patterns in a bacterial-diatom model system based on vitamin B12 auxotrophy as a sensitive assay for metabolite exchange between marine plankton. The most highly up-regulated genes (up to 374-fold) by a marine Roseobacter clade bacterium when cocultured with the diatom Thalassiosira pseudonana were those encoding the transport and catabolism of 2,3-dihydroxypropane-1-sulfonate (DHPS). This compound has no currently recognized role in the marine microbial food web. As the genes for DHPS catabolism have limited distribution among bacterial taxa, T. pseudonana may use this sulfonate for targeted feeding of beneficial associates. Indeed, DHPS was both a major component of the T. pseudonana cytosol and an abundant microbial metabolite in a diatom bloom in the eastern North Pacific Ocean. Moreover, transcript analysis of the North Pacific samples provided evidence of DHPS catabolism by Roseobacter populations. Other such biogeochemically important metabolites may be common in the ocean but difficult to discriminate against the complex chemical background of seawater. Bacterial transformation of this diatom-derived sulfonate represents a previously unidentified and likely sizeable link in both the marine carbon and sulfur cycles.
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