Abstract:
The Hutchins lab works on how phytoplankton communities and the marine biogeochemistry of carbon, nutrients and trace metals may be affected by future environmental change. One current project is using experimental evolution techniques to examine the effects of long-term selection by high CO2on the physiology, gene expression and protein expression of a key player in the ocean nitrogen cycle, the N2-fixing cyanobacterium Trichodesmium. This cyanobacterium adapts to high CO2in a manner that is completely unprecedented in the microbial evolution literature, and does so based on a set of surprising and unexpected mechanisms. These results will be discussed in light of their implications for marine microbial evolution and the biogeochemical cycles of a rapidly changing ocean.
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Ten sample publications (out of 137 total). Current ISI h-index: 43
Hutchins, D. A., Walworth, N., Webb, E.A., Saito, M. A., Moran, D., McIlvin, M. R., Gale,J., Johnson, C., and Fu, F.-X. (Accepted). Unique evolutionary response irreversibly elevates N2fixation in high CO2-selectedTrichodesmium.Nature Communications.
Bertrand, E.M., McCrow, J.P., Zheng, H., Moustafa, A., McQuaid, J., Delmont, T., Post, A., Sipler, R., Spackeen, J., Xu, K., Bronk, D., Hutchins, D.A., and Allen, A.E. (In press). Phytoplankton- bacterial interactions mediate micronutrient colimitation in the Southern Ocean.Proceedings of the National Academy of Sciences USA.
Garcia, N.S., Fu, F.-X., Sedwick, P.N., andHutchins, D.A. (2015).Iron deficiency increases growth and nitrogen fixation rates of phosphorus-deficient marine cyanobacteria. ISME Journal9: 238-245. doi:10.1038/ismej.2014.104.
Xu,K., Fu, F.-X. andHutchins, D.A. (2014).Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability. Limnology and Oceanography59: 919- 931.
Hutchins, D.A., Fu, F.-X., Webb, E.A., Walworth N., and Tagliabue, A. (2013).Taxon-specific response of marine nitrogen fixers to elevated carbon dioxide concentrations. Nature Geoscience6(9):790-795. doi:10.1038/ngeo1858
Capone D.G. andHutchins D.A.(2013). The microbial biogeochemistry of coastal upwelling regimes in a changing ocean.Nature Geoscience6(9): 711-715. doi:10.1038/ngeo1916
King, A.L., Sañudo-Wilhelmy, S.A., Leblanc, K.,Hutchins, D.A.,and Fu, F.-X. (2011).CO2and vitamin B12interactions determine bioactive trace metal requirements of a subarctic Pacific diatom. ISME Journal5(8):1388-1396.DOI:10.1038/ismej.2010.211.
Hutchins, D.A. (2011).Forecasting the rain ratio. Nature476: 41-42.
Beman, J.M., C.-E. Chow,A.L. King, Y. Feng,J.A. Fuhrman, A. Andersson, N.R. Bates, B. N. Popp, andD.A. Hutchins. (2011).Global declines in oceanic nitrification rates as a consequence of ocean acidification. Proceedings of the National Academy of Sciences, USA.108: 208-213.
Hutchins, D.A., Mulholland, M.R. and Fu, F.-X. (2009).Nutrient cycles and marine microbes in a CO2-enriched ocean. Oceanography22: 128-145.
Professional activities
-Associate Editor for Marine Climate Change and Ocean Acidification, Proceedings B of the Royal Society of the United Kingdom.October 2014- present.
-Chairman, 1stOcean Global Change Biology Gordon Research Conference. (July, 2014).
-Lead PI and organizer,Evolution and Climate Change in the Ocean (ECCO) workshop, sponsored by NSF Biological Oceanography 2011.
-Invited member,Ocean Acidification Task Force, Ocean Research and Resources Advisory Panel, Consortium for Ocean Leadership, 2010- 2012.
-Advisor for five Master’s and nine Ph.D. past graduates, including three Hispanic students as well as eleven undergraduates and two high school interns.
-Frequent reviewerfor Nature, Nature Climate Change, Nature Geoscience, Science, Limnology and Oceanography, Deep Sea Research, Journal of Phycology, NSF Chemical and Biological Oceanography, NSF Office of Polar Programs.
