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Volume 13, issue 14
Biogeosciences, 13, 4187–4203, 2016
https://doi.org/10.5194/bg-13-4187-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Biogeochemical and biological response to a diazotroph bloom...

Biogeosciences, 13, 4187–4203, 2016
https://doi.org/10.5194/bg-13-4187-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 22 Jul 2016

Research article | 22 Jul 2016

Mechanisms of Trichodesmium demise within the New Caledonian lagoon during the VAHINE mesocosm experiment

Dina Spungin et al.

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Allers, E., Niesner, C., Wild, C., and Pernthaler, J.: Microbes enriched in seawater after addition of coral mucus, Appl. Environ. Microbiol., 74, 3274–3278, 2008.
Anders, S., Pyl, P. T., and Huber, W.: HTSeq–A Python framework to work with high-throughput sequencing data, Bioinformatics, 31, 166–169, 2015.
Asplund-Samuelsson, J., Bergman, B., and Larsson, J.: Prokaryotic caspase homologs: phylogenetic patterns and functional characteristics reveal considerable diversity, PLOS One, 7, e49888, https://doi.org/10.1371/journal.pone.0049888, 2012.
Asplund-Samuelsson, J.: The art of destruction: revealing the proteolytic capacity of bacterial caspase homologs, Mol. Microbiol., 98, 1–6, 2015.
Azetsu-Scott, K. and Passow, U.: Ascending marine particles: Significance of transparent exopolymer particles (TEP) in the upper ocean, Limnol. Oceanogr., 49, 741–748, 2004.
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The marine cyanobacterium Trichodesmium spp. forms massive blooms important to carbon and nitrogen cycling in the oceans that often collapse abruptly. We investigated a Trichodesmium bloom in the lagoon waters of New Caledonia to specifically elucidate the cellular processes mediating the bloom decline. We demonstrate physiological, biochemical, and genetic evidence for nutrient and oxidative stress that induced a genetically controlled programmed cell death (PCD) pathway leading to bloom demise.
The marine cyanobacterium Trichodesmium spp. forms massive blooms important to carbon and...
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