Articles | Volume 15, issue 12
https://doi.org/10.5194/bg-15-3893-2018
https://doi.org/10.5194/bg-15-3893-2018
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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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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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
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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.
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