Dr Julie Robidart

Ocean Technology and Engineering
+44 (0)23 8059 6225

Microorganisms involved in the nitrogen and carbon cycles feed the base of the food web and directly affect global climate. Both of these cycles are heavily impacted by human activities but for most regions of the ocean, the resolution of biological and chemical datasets is too low to accurately forecast the resulting effects on microbial processes. High-resolution data collection in natural oceanic gradients delivers a quantitative understanding of the distributions and activities of organisms involved in key chemical transformations, relative to environmental parameters.

In order to obtain high-resolution biological datasets from marine systems, our group develops deployable biosensing technologies to detect key functional genes and transcripts from microbes involved in biogeochemical cycling. My latest research involves the sequencing and analysis of environmental metagenomic and metatranscriptomic datasets to inform probe design, the development and optimization of molecular biological assays for autonomous instrumentation, and the design, development and implementation of genetic sensing and sampling technologies in the ocean.



Polyviou, Despo; Baylay, Alison J.; Hitchcock, Andrew; Robidart, Julie; Moore, C.M.; Bibby, Thomas S.. 2018 Desert dust as a source of iron to the globally important diazotroph Trichodesmium. Frontiers in Microbiology, 8. 2683.https://doi.org/10.3389/fmicb.2017.02683
McQuillan, Jonathan S.; Robidart, Julie C.. 2017 Molecular-biological sensing in aquatic environments: recent developments and emerging capabilities. Current Opinion in Biotechnology, 45. 43-50.10.1016/j.copbio.2016.11.022
Shilova, I. N.; Mills, M. M.; Robidart, J.C.; Turk-Kubo, K. A.; Björkman, K. M.; Kolber, Z.; Rapp, I.; van Dijken, G. L.; Church, M. J.; Arrigo, K. R.; Achterberg, E. P.; Zehr, J. P.. 2017 Differential effects of nitrate, ammonium, and urea as N sources for microbial communities in the North Pacific Ocean. Limnology and Oceanography, 62 (6). 2550-2574.https://doi.org/10.1002/lno.10590
Shilova, Irina N.; Robidart, Julie C.; DeLong, Edward F.; Zehr, Jonathan P.. 2016 Genetic diversity affects the daily transcriptional oscillations of marine microbial populations. PLOS ONE, 11 (1). e0146706.10.1371/journal.pone.0146706
Bench, Shellie R.; Frank, Ildiko; Robidart, Julie; Zehr, Jonathan P.. 2016 Two subpopulations of Crocosphaera watsonii have distinct distributions in the North and South Pacific. Environmental Microbiology, 18 (2). 514-524.10.1111/1462-2920.13180
Varaljay, V.; Robidart, J.; Preston, C.; Gifford, S.; Durham, B.; Burns, A.; Ryan, J.; Marin, R.; Kiene, R.; Zehr, J.; Scholin, C.; Moran , M.. 2015 Single-taxon field measurements of bacterial gene regulation controlling DMSP fate. The ISME Journal, 9. 1677-1686.10.1038/ismej.2015.23
Varaljay, Vanessa A.; Robidart, Julie; Preston, Christina M.; Gifford, Scott M.; Durham, Bryndan P.; Burns, Andrew S.; Ryan, John P.; Marin, Roman; Kiene, Ronald P.; Zehr, Jonathan P.; Scholin, Christopher A.; Ann Moran, Mary. 2015 Corrigendum: Single-taxon field measurements of bacterial gene regulation controlling DMSP fate. Correction to: The ISME Journal (2015) 1677–1686. The ISME Journal, 9 (7). 1692.10.1038/ismej.2015.94
Bombar, Deniz; Taylor, Craig D.; Wilson, Samuel T.; Robidart, Julie C.; Rabines, Ariel; Turk-Kubo, Kendra A.; Kemp, John N.; Karl, David M.; Zehr, Jonathan P.. 2015 Measurements of nitrogen fixation in the oligotrophic North Pacific Subtropical Gyre using a free-drifting submersible incubation device. Journal of Plankton Research, 37 (4). 727-739.10.1093/plankt/fbv049
Shilova, Irina N.; Robidart, Julie C.; James Tripp, H.; Turk-Kubo, Kendra; Wawrik, Boris; Post, Anton F.; Thompson, Anne W.; Ward, Bess; Hollibaugh, James T.; Millard, Andy; Ostrowski, Martin; J Scanlan, David; Paerl, Ryan W.; Stuart, Rhona; Zehr, Jonathan P.. 2014 A microarray for assessing transcription from pelagic marine microbial taxa. The ISME Journal, 8 (7). 1476-1491.10.1038/ismej.2014.1
Robidart, Julie C.; Church, Matthew J.; Ryan, John P.; Ascani, François; Wilson, Samuel T.; Bombar, Deniz; Marin, Roman; Richards, Kelvin J.; Karl, David M.; Scholin, Christopher A.; Zehr, Jonathan P.. 2014 Ecogenomic sensor reveals controls on N2-fixing microorganisms in the North Pacific Ocean. The ISME Journal, 8 (6). 1175-1185.10.1038/ismej.2013.244
Wilson, Samuel T.; del Valle, Daniela A.; Robidart, Julie C.; Zehr, Jonathan P.; Karl, David M.. 2014 Erratum: Dissolved hydrogen and nitrogen fixation in the oligotrophic North Pacific Subtropical Gyre. Environmental Microbiology Reports, 6 (1). p122.10.1111/1758-2229.12127
Robidart, Julie; Callister, Stephen J.; Song, Pengfei; Nicora, Carrie D.; Wheat, Charles G.; Girguis, Peter R.. 2013 Characterizing microbial community and geochemical dynamics at hydrothermal vents using osmotically-driven continuous fluid samplers. Environmental Science & Technology, 47 (9). 4399-4407.10.1021/es3037302
Bruno, B.; Rii, Y.; Robidart, J.; Viviani, D.. 2013 The young scientist and the sea (of microbes). Current: The Journal of Marine Education, 28. 3-8.
Wilson, Samuel T.; del Valle, Daniela A.; Robidart, Julie C.; Zehr, Jonathan P.; Karl, David M.. 2013 Dissolved hydrogen and nitrogen fixation in the oligotrophic North Pacific Subtropical Gyre. Environmental Microbiology Reports, 5 (5). 697-704.10.1111/1758-2229.12069
Bombar, Deniz; Turk-Kubo, Kendra A.; Robidart, Julie; Carter, Brandon J.; Zehr, Jonathan P.. 2013 Non-cyanobacterial nifH phylotypes in the North Pacific Subtropical Gyre detected by flow-cytometry cell sorting. Environmental Microbiology Reports, 5 (5). 705-715.10.1111/1758-2229.12070
Robidart, Julie C.; Preston, Christina M.; Paerl, Ryan W.; Turk, Kendra A.; Mosier, Annika C.; Francis, Christopher A.; Scholin, Christopher A.; Zehr, Jonathan P.. 2012 Seasonal Synechococcus and Thaumarchaeal population dynamics examined with high resolution with remote in situ instrumentation. The ISME Journal, 6 (3). 513-523.10.1038/ismej.2011.127
Zehr, Jonathan P.; Robidart, Julie; Scholin, Chris. 2011 Marine microorganisms, biogeochemical cycles, and global climate change. Microbe Magazine, 6. 169-175.
Robidart, Julie C.; Bench, Shellie R.; Feldman, Robert A.; Novoradovsky, Alexey; Podell, Sheila B.; Gaasterland, Terry; Allen, Eric E.; Felbeck, Horst. 2008 Metabolic versatility of the Riftia pachyptila endosymbiont revealed through metagenomics. Environmental Microbiology, 10 (3). 727-737.10.1111/j.1462-2920.2007.01496.x
Markert, S.; Arndt, C.; Felbeck, H.; Becher, D.; Sievert, S.M.; Hugler, M.; Albrecht, D.; Robidart, J.; Bench, S.; Feldman, R.A.; Hecker, M.; Schweder, T.. 2007 Physiological Proteomics of the Uncultured Endosymbiont of Riftia pachyptila. Science, 315 (5809). 247-250.10.1126/science.1132913
Duplessis, M.R.; Ziebis, W.; Gros, O.; Caro, A.; Robidart, J.; Felbeck, H.. 2004 Respiration strategies utilized by the gill endosymbiont from the host lucinid Codakia orbicularis (Bivalvia: Lucinidae). Applied and Environmental Microbiology, 70 (7). 4144-4150.10.1128/AEM.70.7.4144-4150.2004

Book section

Robidart, Julie C.; Shilova, Irina N.; Zehr, Jonathan P.. 2012 “Omics”-Enabled Microbial Sensors on Ocean Platforms. In: Tiquia-Arashio, Sonia M., (ed.)Molecular Biological Technologies for Ocean Sensing. New York, Humana Press/Springer, 1-32, 295pp. (Springer Protocols Handbooks).