Environment

TRacing Algal Carbon Export in the Ross Sea

The Southern Ocean plays a critical role for carbon sequestration in the oceans. The flux of carbon (C) and nitrogen (N) export to the deep ocean depends on the efficiency of the biological pump transporting biomass to depth, however the molecular mechanisms are not well understood. This study focuses on the impact of microbial communities in the C flux in the Ross Sea observed in the late austral summer of 2013 during the TRacing Algal Carbon Export in the Ross Sea (TRACERS) expedition and how programmed cell death (PCD) modulates the turnover of phytoplankton.

Team

Publications

Orellana, M. V. et al. (2013) ‘A role for programmed cell death in the microbial loop.’, PloS one, 8(5), p. e62595. doi: 10.1371/journal.pone.0062595.
Beer, K. D., Orellana, M. V. and Baliga, N. S. (2013) ‘Modeling the evolution of C4 photosynthesis.’, Cell, 153(7), pp. 1427–1429. doi: 10.1016/j.cell.2013.05.058.
Ashworth, J. et al. (2013) ‘Genome-wide diel growth state transitions in the diatom Thalassiosira pseudonana.’, Proceedings of the National Academy of Sciences of the United States of America, 110(18), pp. 7518–7523. doi: 10.1073/pnas.1300962110.
Ashworth, J. et al. (2016) ‘Pan-transcriptomic analysis identifies coordinated and orthologous functional modules in the diatoms Thalassiosira pseudonana and Phaeodactylum tricornutum.’, Marine genomics, 26, pp. 21–28. doi: 10.1016/j.margen.2015.10.011.

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