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Publications

Journal articles

Ajani, PA, Petrou, K, Larsson, ME, Nielsen, DA, Burke, J & Murray, SA 2021, 'Phenotypic trait variability as an indication of adaptive capacity in a cosmopolitan marine diatom.', Environmental microbiology.
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Commault, AS, Kuzhiumparambil, U, Herdean, A, Fabris, M, Jaramillo-Madrid, AC, Abbriano, RM, Ralph, PJ & Pernice, M 2021, 'Methyl jasmonate and methyl-β-cyclodextrin individually boost triterpenoid biosynthesis in chlamydomonas reinhardtii uvm4', Pharmaceuticals, vol. 14, no. 2, pp. 1-12.
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Cziesielski, MJ, Duarte, CM, Aalismail, N, Al-Hafedh, Y, Anton, A, Baalkhuyur, F, Baker, AC, Balke, T, Baums, IB, Berumen, M, Chalastani, VI, Cornwell, B, Daffonchio, D, Diele, K, Farooq, E, Gattuso, JP, He, S, Lovelock, CE, Mcleod, E, Macreadie, PI, Marba, N, Martin, C, Muniz-Barreto, M, Kadinijappali, KP, Prihartato, P, Rabaoui, L, Saderne, V, Schmidt-Roach, S, Suggett, DJ, Sweet, M, Statton, J, Teicher, S, Trevathan-Tackett, SM, Joydas, TV, Yahya, R & Aranda, M 2021, 'Investing in Blue Natural Capital to Secure a Future for the Red Sea Ecosystems', Frontiers in Marine Science, vol. 7.
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Garczarek, L, Guyet, U, Doré, H, Farrant, GK, Hoebeke, M, Brillet-Guéguen, L, Bisch, A, Ferrieux, M, Siltanen, J, Corre, E, Le Corguillé, G, Ratin, M, Pitt, FD, Ostrowski, M, Conan, M, Siegel, A, Labadie, K, Aury, J-M, Wincker, P, Scanlan, DJ & Partensky, F 2021, 'Cyanorak v2.1: a scalable information system dedicated to the visualization and expert curation of marine and brackish picocyanobacteria genomes.', Nucleic acids research, vol. 49, no. D1, pp. D667-D676.
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Hudspith, M, Rix, L, Achlatis, M, Bougoure, J, Guagliardo, P, Clode, PL, Webster, NS, Muyzer, G, Pernice, M & de Goeij, JM 2021, 'Subcellular view of host-microbiome nutrient exchange in sponges: insights into the ecological success of an early metazoan-microbe symbiosis.', Microbiome, vol. 9, no. 1, p. 44.
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Background

Sponges are increasingly recognised as key ecosystem engineers in many aquatic habitats. They play an important role in nutrient cycling due to their unrivalled capacity for processing both dissolved and particulate organic matter (DOM and POM) and the exceptional metabolic repertoire of their diverse and abundant microbial communities. Functional studies determining the role of host and microbiome in organic nutrient uptake and exchange, however, are limited. Therefore, we coupled pulse-chase isotopic tracer techniques with nanoscale secondary ion mass spectrometry (NanoSIMS) to visualise the uptake and translocation of 13C- and 15N-labelled dissolved and particulate organic food at subcellular level in the high microbial abundance sponge Plakortis angulospiculatus and the low microbial abundance sponge Halisarca caerulea.

Results

The two sponge species showed significant enrichment of DOM- and POM-derived 13C and 15N into their tissue over time. Microbial symbionts were actively involved in the assimilation of DOM, but host filtering cells (choanocytes) appeared to be the primary site of DOM and POM uptake in both sponge species overall, via pinocytosis and phagocytosis, respectively. Translocation of carbon and nitrogen from choanocytes to microbial symbionts occurred over time, irrespective of microbial abundance, reflecting recycling of host waste products by the microbiome.

Conclusions

Here, we provide empirical evidence indicating that the prokaryotic communities of a high and a low microbial abundance sponge obtain nutritional benefits from their host-associated lifestyle. The metabolic interaction between the highly efficient filter-feeding host and its microbial symbionts likely provides a competitive advantage to the sponge holobiont in the oligotrophic environments in which they thrive, by retaining and recycling limiting nutrients. Sponges present a unique model to link nutr...

Labeeuw, L, Commault, AS, Kuzhiumparambil, U, Emmerton, B, Nguyen, LN, Nghiem, LD & Ralph, PJ 2021, 'A comprehensive analysis of an effective flocculation method for high quality microalgal biomass harvesting', SCIENCE OF THE TOTAL ENVIRONMENT, vol. 752.
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Laiolo, L, Matear, R, Soja-Woźniak, M, Suggett, DJ, Hughes, DJ, Baird, ME & Doblin, MA 2021, 'Modelling the impact of phytoplankton cell size and abundance on inherent optical properties (IOPs) and a remotely sensed chlorophyll-a product', Journal of Marine Systems, vol. 213.
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Leal, E, de Beyer, L, O'Connor, W, Dove, M, Ralph, PJ & Pernice, M 2021, 'Production optimisation of Tisochrysis lutea as a live feed for juvenile Sydney rock oysters, Saccostrea glomerata, using large-scale photobioreactors', Aquaculture, vol. 533.
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Maire, J, Girvan, SK, Barkla, SE, Perez-Gonzalez, A, Suggett, DJ, Blackall, LL & van Oppen, MJH 2021, 'Intracellular bacteria are common and taxonomically diverse in cultured and in hospite algal endosymbionts of coral reefs', ISME Journal.
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Polerecky, L, Masuda, T, Eichner, M, Rabouille, S, Vancová, M, Kienhuis, MVM, Bernát, G, Bonomi-Barufi, J, Campbell, DA, Claquin, P, Červený, J, Giordano, M, Kotabová, E, Kromkamp, J, Lombardi, AT, Lukeš, M, Prášil, O, Stephan, S, Suggett, D, Zavřel, T & Halsey, KH 2021, 'Temporal Patterns and Intra- and Inter-Cellular Variability in Carbon and Nitrogen Assimilation by the Unicellular Cyanobacterium Cyanothece sp. ATCC 51142', Frontiers in Microbiology, vol. 12.
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Ros, M, Suggett, DJ, Edmondson, J, Haydon, T, Hughes, DJ, Kim, M, Guagliardo, P, Bougoure, J, Pernice, M, Raina, JB & Camp, EF 2021, 'Symbiont shuffling across environmental gradients aligns with changes in carbon uptake and translocation in the reef-building coral Pocillopora acuta', Coral Reefs.
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Rouze, H, Galand, PE, Medina, M, Bongaerts, P, Pichon, M, Perez-Rosales, G, Torda, G, Moya, A, Raina, J-B & Hedouin, L 2021, 'Symbiotic associations of the deepest recorded photosynthetic scleractinian coral (172 m depth)', ISME JOURNAL, vol. 15, no. 5, pp. 1564-1568.
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Sutherland, DL, Burke, J & Ralph, PJ 2021, 'Trade-offs between effluent quality and ammonia volatilisation with CO2 augmented microalgal treatment of anaerobically digested food-waste centrate.', Journal of environmental management, vol. 277, pp. 111398-111398.
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Vu, HP, Nguyen, LN, Vu, MT, Labeeuw, L, Emmerton, B, Commault, AS, Ralph, PJ, Mahlia, TM & Nghiem, LD 2021, 'Harvesting Porphyridium purpureum using polyacrylamide polymers and alkaline bases and their impact on biomass quality', SCIENCE OF THE TOTAL ENVIRONMENT, vol. 755.
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Windhagauer, M, Abbriano, RM, Ashworth, J, Barolo, L, Jaramillo-Madrid, AC, Pernice, M & Doblin, MA 2021, 'Characterisation of novel regulatory sequences compatible with modular assembly in the diatom Phaeodactylum tricornutum', ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS, vol. 53.
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