ArticleNature communications2023
Planktonic microbial signatures of sinking particle export in the open ocean's interior.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Biofilm formation and dynamics in the marine cyanobacterium Prochlorococcus.Nature communications · 2026Article
- Stochastic resilience enables particle foraging in oligotrophic marine environments.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Seasonality drives temporal niche partitioning of pelagic prokaryotes.The ISME journal · 2026Article
- Biogel scavenging slows the sinking of organic particles to the ocean depths.Nature communications · 2025Article
- Dark ocean archaeal and bacterial chemoautotrophs drive vitamin B1 production in oxygen minimum zones.ISME communications · 2025Article
- Effect of Light Regime onJournal of microbiology and biotechnology · 2024Article
- Isolation and biogeography of the oligotrophic ocean diazotroph, Crocosphaera waterburyi nov. sp.The ISME journal · 2024Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A considerable amount of particulate carbon produced by oceanic photosynthesis is exported to the deep-sea by the "gravitational pump" (~6.8 to 7.7 Pg C/year), sequestering it from the atmosphere for centuries. How particulate organic carbon (POC) is transformed during export to the deep sea however is not well understood. Here, we report that dominant suspended prokaryotes also found in sinking particles serve as informative tracers of particle export processes. In a three-year time series from oceanographic campaigns in the Pacific Ocean, upper water column relative abundances of suspended prokaryotes entrained in sinking particles decreased exponentially from depths of 75 to 250 m, conforming to known depth-attenuation patterns of carbon, energy, and mass fluxes in the epipelagic zone. Below ~250 m however, the relative abundance of suspended prokaryotes entrained in sinking particles increased with depth. These results indicate that microbial entrainment, colonization, and sinking particle formation are elevated at mesopelagic and bathypelagic depths. Comparison of suspended and sinking particle-associated microbes provides information about the depth-variability of POC export and biotic processes, that is not evident from biogeochemical data alone.
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