Weaving of biomineralization framework in rotaliid foraminifera: implications for paleoceanographic proxies

Nagai, Yukiko; Uematsu, Katsuyuki; Chen, Chong; Wani, Ryoji; Tyszka, Jarosław; Toyofuku, Takashi

doi:https://doi.org/10.5194/bg-15-6773-2018

Articles | Volume 15, issue 22

https://doi.org/10.5194/bg-15-6773-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-15-6773-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 22

Research article

|

14 Nov 2018

Research article |

| 14 Nov 2018

Weaving of biomineralization framework in rotaliid foraminifera: implications for paleoceanographic proxies

Yukiko Nagai, Katsuyuki Uematsu, Chong Chen, Ryoji Wani, Jarosław Tyszka, and Takashi Toyofuku

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Final revised paper (published on 14 Nov 2018)
Supplement to the final revised paper
Preprint (discussion started on 23 Jul 2018)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review report of bg-2018-295', Inge van Dijk, 07 Aug 2018
- AC1: 'RESPONSE TO REVIEWER 1 (Inge van Dijk)', Yukiko Nagai, 31 Aug 2018
RC2: 'Novel and detailed observations on pseudopodia and organic layers during chamber formation', Anonymous Referee #2, 16 Aug 2018
- AC2: 'RESPONSE TO REVIEWER 2', Yukiko Nagai, 31 Aug 2018
AC3: 'Letter to Editor for revision', Yukiko Nagai, 31 Aug 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (18 Sep 2018) by Hiroshi Kitazato

AR by Svenja Lange on behalf of the Authors (21 Sep 2018) Author's response Manuscript

ED: Publish as is (25 Sep 2018) by Hiroshi Kitazato

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Yukiko Nagai on behalf of the Authors (12 Oct 2018) Author's adjustment Manuscript

EA: Adjustments approved (12 Oct 2018) by Hiroshi Kitazato

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Short summary

We interpret detailed SEM and time-lapse observations of the calcification process in living foraminifera, which we reveal to be directly linked to the construction mechanism of organic membranes where the calcium carbonate precipitation takes place. We show that these membranes are a highly perforated outline is first woven by skeletal pseudopodia and then later overlaid by a layer of membranous pseudopodia to close the gaps. The chemical composition is related to these structures.