ArticleJournal of the Royal Society, Interface2015
Shear-induced orientational dynamics and spatial heterogeneity in suspensions of motile phytoplankton.
Article in Journal of the Royal Society, Interface, 2015. 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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Who cites it
17 citing papers in PubMed, 71 citations in OpenAlex.
- Shear-induced ciliary autotomy mediated by a TRP channel and a voltage-dependent calcium channel.iScience · 2025Article
- Impact of critical eddy diffusivity on seasonal bloom dynamics of Phytoplankton in a global set of aquatic environments.Scientific reports · 2023Article
- Confinement, chaotic transport, and trapping of active swimmers in time-periodic flows.Science advances · 2022Article
- Investigating microscale patchiness of motile microbes under turbulence in a simulated convective mixed layer.PLoS computational biology · 2022Article
- Bacteria hinder large-scale transport and enhance small-scale mixing in time-periodic flows.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Change in rheotactic behavior patterns of dinoflagellates in response to different microfluidic environments.Scientific reports · 2021Article
- Diurnal Variations in the Motility of Populations of Biflagellate Microalgae.Biophysical journal · 2020Article
- The effect of flow on swimming bacteria controls the initial colonization of curved surfaces.Nature communications · 2020Article
- Trait-specific dispersal of bacteria in heterogeneous porous environments: from pore to porous medium scale.Journal of the Royal Society, Interface · 2020Article
- Oscillatory surface rheotaxis of swimming E. coli bacteria.Nature communications · 2019Article
- Enhanced transport of nutrients powered by microscale flows of the self-spinning dinoflagellateThe Journal of experimental biology · 2019Article
- Gyrotactic phytoplankton in laminar and turbulent flows: A dynamical systems approach.The European physical journal. E, Soft matter · 2019Review
- Microfluidic technology for plankton research.Current opinion in biotechnology · 2019Review
- Article
- Active Brownian Filamentous Polymers under Shear Flow.Polymers · 2018Article
- Physical modeling of vortical cross-step flow in the American paddlefish, Polyodon spathula.PloS one · 2018Article
- Evidence for ubiquitous preferential particle orientation in representative oceanic shear flows.Limnology and oceanography · 2018Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fluid flow, ubiquitous in natural and man-made environments, has the potential to profoundly impact the transport of microorganisms, including phytoplankton in aquatic habitats and bioreactors. Yet, the effect of ambient flow on the swimming behaviour of phytoplankton has remained poorly understood, largely owing to the difficulty of observing cell-flow interactions at the microscale. Here, we present microfluidic experiments where we tracked individual cells for four species of motile phytoplankton exposed to a spatially non-uniform fluid shear rate, characteristic of many flows in natural and artificial environments. We observed that medium-to-high mean shear rates (1-25 s(-1)) produce heterogeneous cell concentrations in the form of regions of accumulation and regions of depletion. The location of these regions relative to the flow depends on the cells' propulsion mechanism, body shape and flagellar arrangement, as captured by an effective aspect ratio. Species having a large effective aspect ratio accumulated in the high-shear regions, owing to shear-induced alignment of the swimming orientation with the fluid streamlines. Species having an effective aspect ratio close to unity exhibited little preferential accumulation at low-to-moderate flow rates, but strongly accumulated in the low-shear regions under high flow conditions, potentially owing to an active, behavioural response of cells to shear. These observations demonstrate that ambient fluid flow can strongly affect the motility and spatial distribution of phytoplankton and highlight the rich dynamics emerging from the interaction between motility, morphology and flow.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.