Articles | Volume 16, issue 24
Technical note
17 Dec 2019
Technical note |  | 17 Dec 2019

Technical note: The silicon isotopic composition of choanoflagellates: implications for a mechanistic understanding of isotopic fractionation during biosilicification

Alan Marron, Lucie Cassarino, Jade Hatton, Paul Curnow, and Katharine R. Hendry


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (11 Nov 2019) by Aldo Shemesh
AR by Kate Hendry on behalf of the Authors (19 Nov 2019)  Author's response    Manuscript
ED: Publish as is (21 Nov 2019) by Aldo Shemesh
Short summary
Isotopic signatures of silica fossils can be used as archives of past oceanic silicon cycling, which is linked to marine carbon uptake. However, the biochemistry that lies behind such chemical fingerprints remains poorly understood. We present the first measurements of silicon isotopes in a group of protists closely related to animals, choanoflagellates. Our results highlight a taxonomic basis to silica isotope signatures, possibly via a shared transport pathway in choanoflagellates and animals.
Final-revised paper