Programmed cell death in diazotrophs and the fate of organic matter in the western tropical South Pacific Ocean during the OUTPACE cruise

Spungin, Dina; Belkin, Natalia; Foster, Rachel A.; Stenegren, Marcus; Caputo, Andrea; Pujo-Pay, Mireille; Leblond, Nathalie; Dupouy, Cécile; Bonnet, Sophie; Berman-Frank, Ilana

doi:https://doi.org/10.5194/bg-15-3893-2018

Articles | Volume 15, issue 12

https://doi.org/10.5194/bg-15-3893-2018

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

Special issue:

Interactions between planktonic organisms and biogeochemical...

https://doi.org/10.5194/bg-15-3893-2018

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

Articles | Volume 15, issue 12

Research article

|

28 Jun 2018

Research article |

| 28 Jun 2018

Programmed cell death in diazotrophs and the fate of organic matter in the western tropical South Pacific Ocean during the OUTPACE cruise

Dina Spungin, Natalia Belkin, Rachel A. Foster, Marcus Stenegren, Andrea Caputo, Mireille Pujo-Pay, Nathalie Leblond, Cécile Dupouy, Sophie Bonnet, and Ilana Berman-Frank

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Interactive discussion

Status: closed

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

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RC1: 'excellent paper', Anonymous Referee #1, 14 Feb 2018
- AC1: 'Response to reviewer #1', Ilana Berman-Frank, 04 Apr 2018
RC2: 'INTERACTIVE COMMENT on "Programmed cell death in diazotrophs and the fate of organic matter in the Western Tropical South Pacific Ocean during the OUTPACE cruise" By Spungin et al.', Anonymous Referee #2, 15 Mar 2018
- AC2: 'Response to reviewer #2', Ilana Berman-Frank, 04 Apr 2018

Peer-review completion

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

ED: Reconsider after major revisions (05 Apr 2018) by Thierry Moutin

AR by Ilana Berman-Frank on behalf of the Authors (11 Apr 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (12 Apr 2018) by Thierry Moutin

RR by Anonymous Referee #2 (26 Apr 2018)

ED: Publish subject to minor revisions (review by editor) (26 Apr 2018) by Thierry Moutin

AR by Ilana Berman-Frank on behalf of the Authors (01 May 2018) Author's response Manuscript

ED: Publish as is (07 May 2018) by Thierry Moutin

AR by Ilana Berman-Frank on behalf of the Authors (15 May 2018) Manuscript

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Short summary

The way marine organisms die can determine the fate of organic matter (OM) in the ocean. We investigated whether a form of auto-induced programmed cell death (PCD) influenced phytoplankton mortality and fate of OM. Our results from high biomass blooms of the cyanobacterium Trichodesmium show evidence for PCD and high production of sticky carbon material termed transparent exopolymeric particles (TEP) that facilitates cellular aggregation and enhances the vertical flux of OM to depth.