Modelling dimethylsulfide diffusion in the algal external boundary layer: implications for mutualistic and signalling roles

Summary Dimethylsulfide (DMS), a dominant organic sulfur species in the surface ocean, may act as a signalling molecule and contribute to mutualistic interactions between bacteria and marine algae. These proposed functions depend on the DMS concentration in the vicinity of microorganisms. Here, we m...

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Bibliographic Details
Published in:Environmental microbiology 2018-11, Vol.20 (11), p.4157-4169
Main Authors: Lavoie, Michel, Galí, Martí, Sévigny, Caroline, Kieber, David J., Sunda, William G., Spiese, Christopher E., Maps, Frédéric, Levasseur, Maurice
Format: Article
Language:English
Subjects:
Algae
Algal growth
Auxins
Bacteria
Bacteria - genetics
Bacteria - growth & development
Bacteria - metabolism
Boundary layers
Carbon-Sulfur Lyases - genetics
Carbon-Sulfur Lyases - metabolism
Cell surface
Cells
Chelating agents
Diatoms - enzymology
Diatoms - genetics
Diatoms - metabolism
Diffusion layers
Dimethyl sulfide
Dinoflagellida - enzymology
Dinoflagellida - genetics
Dinoflagellida - metabolism
Dye dispersion
Ecosystem
Enrichment
Growth factors
Haptophyta - enzymology
Haptophyta - genetics
Haptophyta - metabolism
Interactions
Iron
Iron - metabolism
Marine microorganisms
Microorganisms
Modelling
Phytoplankton
Phytoplankton - enzymology
Phytoplankton - genetics
Phytoplankton - metabolism
Seawater - microbiology
Seawater - parasitology
Siderophores
Siderophores - metabolism
Signaling
Sulfides - analysis
Sulfides - metabolism
Sulfur
Sulphur
Temperature (air-sea)
Turbulence
Uptake
Vitamins
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Summary:Summary Dimethylsulfide (DMS), a dominant organic sulfur species in the surface ocean, may act as a signalling molecule and contribute to mutualistic interactions between bacteria and marine algae. These proposed functions depend on the DMS concentration in the vicinity of microorganisms. Here, we modelled the DMS enrichment at the surface of DMS‐releasing marine algal cells as a function of DMS production rate, algal cell radius and turbulence. Our results show that the DMS concentration at the surface of unstressed phytoplankton with low DMS production rates can be enriched by
ISSN:1462-2912
1462-2920
DOI:10.1111/1462-2920.14417