ArticleProceedings of the National Academy of Sciences of the United States of America2016
Chemotaxis toward phytoplankton drives organic matter partitioning among marine bacteria.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.
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97 citing papers in PubMed.
- The coccosphere of the heavy calcifying coccolithophore Coccolithus braarudii provides defense against bacteria.Communications biology · 2026Article
- Co-migration of hundreds of microbial species over metres drives selection and promotes non-motile hitchhikers.Nature communications · 2026Article
- The ecology of bacterial attachment to phytoplankton.Nature microbiology · 2026Review
- Microalgae-Bacteria Interactions in the Bio-based Circular Economy: Mechanisms and Biotechnological Applications.Current microbiology · 2026Review
- Comparative genomics reveals the molecular basis for divergent algicidal strategies in twoApplied and environmental microbiology · 2026Article
- Spatial structure: shaping the ecology and evolution of microbial communities.FEMS microbiology reviews · 2026Review
- Saline-alkaline mediated chemotaxis in the plant growth-promoting rhizobacterium Enterobacter cloacae.FEMS microbiology ecology · 2025Article
- Drift velocity of bacterial chemotaxis in dynamic chemical environments.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2025Article
- Defining the ecological strategies of phytoplankton associated bacteria.Nature communications · 2025Article
- An atlas of metabolites driving chemotaxis in prokaryotes.Nature communications · 2025Article
- Slower swimming promotes chemotactic encounters between bacteria and small phytoplankton.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Spatially structured bacterial interactions alter algal carbon flow to bacteria.The ISME journal · 2025Article
- Chemotaxis, growth, and inter-species interactions shape early bacterial community assembly.The ISME journal · 2025Article
- Host identity drives the assembly of phytoplankton microbiomes across a continental-scale environmental gradient.The ISME journal · 2025Article
- Bacterial volatile organic compound specialists in the phycosphere.The ISME journal · 2025Article
- Seasonal and stable heterotrophic guilds drive Arctic benthic microbiome functioning across polar day and night.ISME communications · 2025Article
- Marine phytoplankton impose strong selective pressures onISME communications · 2025Article
- Metabolites from intact phage-infected Synechococcus chemotactically attract heterotrophic marine bacteria.Nature microbiology · 2024Article
- Optimal Cell Length for Exploration and Exploitation in Chemotactic Planktonic Bacteria.Environmental microbiology · 2024Article
- Bacterial clustering amplifies the reshaping of eutrophic plumes around marine particles: A hybrid data-driven model.PLoS computational biology · 2024Article
37 more citing papers are in PubMed but not listed here.
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
The microenvironment surrounding individual phytoplankton cells is often rich in dissolved organic matter (DOM), which can attract bacteria by chemotaxis. These "phycospheres" may be prominent sources of resource heterogeneity in the ocean, affecting the growth of bacterial populations and the fate of DOM. However, these effects remain poorly quantified due to a lack of quantitative ecological frameworks. Here, we used video microscopy to dissect with unprecedented resolution the chemotactic accumulation of marine bacteria around individual Chaetoceros affinis diatoms undergoing lysis. The observed spatiotemporal distribution of bacteria was used in a resource utilization model to map the conditions under which competition between different bacterial groups favors chemotaxis. The model predicts that chemotactic, copiotrophic populations outcompete nonmotile, oligotrophic populations during diatom blooms and bloom collapse conditions, resulting in an increase in the ratio of motile to nonmotile cells and in the succession of populations. Partitioning of DOM between the two populations is strongly dependent on the overall concentration of bacteria and the diffusivity of different DOM substances, and within each population, the growth benefit from phycospheres is experienced by only a small fraction of cells. By informing a DOM utilization model with highly resolved behavioral data, the hybrid approach used here represents a new path toward the elusive goal of predicting the consequences of microscale interactions in the ocean.
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