Volume 13, issue 14 | Copyright

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

Biogeosciences, 13, 4187-4203, 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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Short summary
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...