Skip to Main content Skip to Navigation
Journal articles

High and specific diversity of protists in the deep-sea basins dominated by diplonemids, kinetoplastids, ciliates and foraminiferans

Abstract : Heterotrophic protists (unicellular eukaryotes) form a major link from bacteria and algae to higher trophic levels in the sunlit ocean. Their role on the deep seafloor, however, is only fragmentarily understood, despite their potential key function for global carbon cycling. Using the approach of combined DNA metabarcoding and cultivation-based surveys of 11 deep-sea regions, we show that protist communities, mostly overlooked in current deep-sea foodweb models, are highly specific, locally diverse and have little overlap to pelagic communities. Besides traditionally considered foraminiferans, tiny protists including diplonemids, kinetoplastids and ciliates were genetically highly diverse considerably exceeding the diversity of metazoans. Deep-sea protists, including many parasitic species, represent thus one of the most diverse biodiversity compartments of the Earth system, forming an essential link to metazoans.
Document type :
Journal articles
Complete list of metadata

https://hal.sorbonne-universite.fr/hal-03208049
Contributor : Gestionnaire Hal-Su <>
Submitted on : Monday, April 26, 2021 - 11:53:24 AM
Last modification on : Tuesday, May 25, 2021 - 10:30:47 AM

File

s42003-021-02012-5.pdf
Publication funded by an institution

Identifiers

Citation

Alexandra Schoenle, Manon Hohlfeld, Karoline Hermanns, Frédéric Mahé, Colomban de Vargas, et al.. High and specific diversity of protists in the deep-sea basins dominated by diplonemids, kinetoplastids, ciliates and foraminiferans. Communications Biology, Nature Publishing Group, 2021, 4 (1), pp.501. ⟨10.1038/s42003-021-02012-5⟩. ⟨hal-03208049⟩

Share

Metrics

Record views

188

Files downloads

92