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The role of marine microbes in the global carbon cycle (DECRA - Jean-Baptiste Raina)

Funding: 2016: $125,300
2017: $125,500
2018: $125,500

Project Member(s): Raina, J.

Funding or Partner Organisation: Australian Research Council (ARC DECRA Scheme)

Start year: 2016

Summary: Marine microbes are the unseen engines that drive the oceanic carbon cycle, which ultimately feeds the base of the marine food web and regulates global climate. However, technical limitations have restricted our ability to identify the ‘key-stone’ microbes most responsible for driving ocean carbon cycling, and measure the chemical consequences of their activities. This project will combine new approaches in microfluidics, chemistry and oceanography to quantify carbon uptake by individual microbes in their natural environment. This approach will deliver a transformative new understanding of the microbe-mediated chemical cycling processes that control the productivity of marine fisheries and the climate of our planet.

Publications:

Pernice, M, Raina, J-B, Rädecker, N, Cárdenas, A, Pogoreutz, C & Voolstra, CR 2020, 'Down to the bone: the role of overlooked endolithic microbiomes in reef coral health', The ISME Journal, vol. 14, no. 2, pp. 325-334.
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Lawson, CA, Possell, M, Seymour, JR, Raina, J-B & Suggett, DJ 2019, 'Coral endosymbionts (Symbiodiniaceae) emit species-specific volatilomes that shift when exposed to thermal stress', Scientific Reports, vol. 9, no. 1.
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Raina, J-B, Fernandez, V, Lambert, B, Stocker, R & Seymour, JR 2019, 'The role of microbial motility and chemotaxis in symbiosis', Nature Reviews Microbiology, vol. 17, no. 5, pp. 284-294.
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Curson, ARJ, Williams, BT, Pinchbeck, BJ, Sims, LP, Martínez, AB, Rivera, PPL, Kumaresan, D, Mercadé, E, Spurgin, LG, Carrión, O, Moxon, S, Cattolico, RA, Kuzhiumparambil, U, Guagliardo, P, Clode, PL, Raina, J-B & Todd, JD 2018, 'DSYB catalyses the key step of dimethylsulfoniopropionate biosynthesis in many phytoplankton', Nature Microbiology, vol. 3, no. 4, pp. 430-439.
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Giardina, M, Cheong, S, Marjo, CE, Clode, PL, Guagliardo, P, Pickford, R, Pernice, M, Seymour, JR & Raina, J-B 2018, 'Quantifying Inorganic Nitrogen Assimilation by Synechococcus Using Bulk and Single-Cell Mass Spectrometry: A Comparative Study', Frontiers in Microbiology, vol. 9.
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Lawson, CA, Raina, J, Kahlke, T, Seymour, JR & Suggett, DJ 2018, 'Defining the core microbiome of the symbiotic dinoflagellate, Symbiodinium', Environmental Microbiology Reports, vol. 10, no. 1, pp. 7-11.
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Rädecker, N, Raina, J-B, Pernice, M, Perna, G, Guagliardo, P, Kilburn, MR, Aranda, M & Voolstra, CR 2018, 'Using Aiptasia as a Model to Study Metabolic Interactions in Cnidarian-Symbiodinium Symbioses', Frontiers in Physiology, vol. 9.
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Raina, J-B 2018, 'The Life Aquatic at the Microscale', mSystems, vol. 3, no. 2.
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Seymour, JR & Raina, J-B 2018, 'Swimming in the sea: chemotaxis by marine bacteria', Microbiology Australia, vol. 39, no. 1, pp. 12-12.
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Gardner, SG, Raina, J-B, Nitschke, MR, Nielsen, DA, Stat, M, Motti, CA, Ralph, PJ & Petrou, K 2017, 'A multi-trait systems approach reveals a response cascade to bleaching in corals', BMC Biology, vol. 15, no. 1.
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Lambert, BS, Raina, J-B, Fernandez, VI, Rinke, C, Siboni, N, Rubino, F, Hugenholtz, P, Tyson, GW, Seymour, JR & Stocker, R 2017, 'A microfluidics-based in situ chemotaxis assay to study the behaviour of aquatic microbial communities', Nature Microbiology, vol. 2, no. 10, pp. 1344-1349.
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Raina, J-B, Clode, PL, Cheong, S, Bougoure, J, Kilburn, MR, Reeder, A, Forêt, S, Stat, M, Beltran, V, Thomas-Hall, P, Tapiolas, D, Motti, CM, Gong, B, Pernice, M, Marjo, CE, Seymour, JR, Willis, BL & Bourne, DG 2017, 'Subcellular tracking reveals the location of dimethylsulfoniopropionate in microalgae and visualises its uptake by marine bacteria', eLife, vol. 6, pp. 1-17.
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Seymour, JR, Amin, SA, Raina, J-B & Stocker, R 2017, 'Zooming in on the phycosphere: the ecological interface for phytoplankton–bacteria relationships', Nature Microbiology, vol. 2, no. 7, pp. 1-12.
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Keywords: carbon cycling, marine microbes,

FOR Codes: Microbial Ecology, Biological Oceanography, Chemical Oceanography, Expanding Knowledge in the Biological Sciences, Physical and Chemical Conditions of Water in Marine Environments, Effects of Climate Change and Variability on Australia (excl. Social Impacts), Measurement and assessment of marine water quality and condition, Effects of climate change on Australia (excl. social impacts)