Dataset: Iron concentrations of phage from experiments of iron-labelled E. coli infected with T4 and T5 bacteriophage, 2018 and 2019.

ValidatedRelease Date:2020-01-27Final no updates expectedDOI: 10.1575/1912/bco-dmo.757485.1Version 1 (2019-02-27)Dataset Type:experimental

Principal Investigator: Mya Breitbart (University of South Florida)

Principal Investigator: Kristen Nicolle Buck (University of South Florida)

Co-Principal Investigator: Chelsea Bonnain (University of South Florida)

Co-Principal Investigator: Salvatore Caprara (University of South Florida)

BCO-DMO Data Manager: Nancy Copley (Woods Hole Oceanographic Institution)


Project: EAGER: Iron-Virus Interactions in the Ocean (Fe-Virus)


Abstract

This data was collected as part of a study investigating the source of iron to bacteriophage (phage for short, or viruses that infect and kill bacteria) progeny. Evidence from a phage that infects E. coli shows iron incorporated into the tail fiber structure. This study aims at identifying whether the source of the iron is environmental or bacterially derived. E. coli bacterial cultures were grown in minimal media spiked with 10 µM 57FeSO4 then infected with phage T4 or T5. The phages were purif...

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This data was collected as part of a study investigating the source of iron to bacteriophage (phage for short, or viruses that infect and kill bacteria) progeny. Evidence from a phage that infects E. coli shows iron incorporated into the tail fiber structure. This study aims at identifying whether the source of the iron is environmental or bacterially derived. E. coli bacterial cultures were grown in minimal media spiked with 10 µM 57FeSO4 then infected with phage T4 or T5. The phages were purified by methods of centrifugation, filtration, density-dependent ultracentrifugation, and dialyzing. The resulting phage fractions were quantified by SYBR epifluorescence microscopy and metal concentrations were measured on an ELEMENT XR ICP-MS.


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Methods

Gledhill, M. (2012). The organic complexation of iron in the marine environment: a review. Frontiers in Microbiology, 3. doi:10.3389/fmicb.2012.00069
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Hurwitz, B. L., Deng, L., Poulos, B. T., & Sullivan, M. B. (2012). Evaluation of methods to concentrate and purify ocean virus communities through comparative, replicated metagenomics. Environmental Microbiology, 15(5), 1428–1440. doi:10.1111/j.1462-2920.2012.02836.x
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Kutter, E., & Sulakvelidze, A. (2004). Bacteriophages: biology and applications. CRC Press.
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Mellett, T., Brown, M.T., Chappell, P.D., Duckham, C., Fitzsimmons, J.N., Till, C.P., Sherrell, R.M., Maldonado, M.T., and Buck, K.N. (2017). The biogeochemical cycling of iron, copper, nickel, cadmium, manganese, cobalt, lead, and scandium in a California Current experimental study. Limnology and Oceanography, 63(S1), S425–S447. doi:10.1002/lno.10751
Methods

Noble, R., & Fuhrman, J. (1998). Use of SYBR Green I for rapid epifluorescence counts of marine viruses and bacteria. Aquatic Microbial Ecology, 14, 113–118. doi:10.3354/ame014113