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  • Bench, S. R., Ilikchyan, I. N., Tripp, H. J. & Zehr, J. P. 2011. Two strains of Crocosphaera watsonii with highly conserved genomes are distinguished by strain-specific features. Front. Aquat. Microbiol. 2:61. doi:10.3389/fmicb.2011.00261.
  • Bergman, B. & Carpenter, E. J. 1991. Nitrogenase confined to randomly distributed trichomes in the marine cyanobacterium Trichodesmium thiebautii. J. Phycol. 27:15865.
  • Bergman, B., Gallon, J. R., Rai, A. N. & Stal, L. J. 1997. N2 Fixation by non-heterocystous cyanobacteria. FEMS Microbiol. Rev. 19:13985.
  • Berman-Frank, I., Lundgren, P., Chen, Y. B., Kupper, H., Kolber, Z., Bergman, B. & Falkowski, P. 2001. Segregation of nitrogen fixation and oxygenic photosynthesis in the marine cyanobacterium Trichodesmium. Science 294:15347.
  • Biegala, I. C. & Raimbault, P. 2008. High abundance of diazotrophic picocyanobacteria (<3 μm) in a Southwest Pacific coral lagoon. Aquat. Microb. Ecol. 51:4553.
  • Bonnet, S., Biegala, I. C., Dutrieux, P., Slemons, L. O. & Capone, D. G. 2009. Nitrogen fixation in the western equatorial Pacific: Rates, diazotrophic cyanobacterial size class distribution, and biogeochemical significance. Global Biogeochem. Cycles 23:GB3012.
  • Burris, R. H. 1991. Nitrogenases. J. Biol. Chem. 266:933942.
  • Campbell, L., Carpenter, E. J., Montoya, J. P., Kustka, A. B. & Capone, D. G. 2005. Picoplankton community structure within and outside a Trichodesmium bloom in the southwestern Pacific Ocean. Vie Milieu 55:18595.
  • Capone, D. G. 1993. Determination of nitrogenase activity in aquatic samples using the acetylene reduction procedure. In Kemp, P. F., Sherr, B. F., Sherr, E. B. & Cole, J. J. [Eds.] Handbook of Methods in Aquatic Microbial Ecology. Lewis Publication, Boca Raton, Florida, pp. 621631.
  • Capone, D. G., Zehr, J. P., Paerl, H. W., Bergman, B. & Carpenter, E. J. 1997. Trichodesmium, a globally significant marine cyanobacterium. Science 276:12219.
  • Capone, D.G., Burns, J., Montoya, J., Subramaniam, A., Mahaffey, C., Gunderson, T., Michaels, T. and Carpenter, E.J. 2005. Nitrogen fixation by Trichodesmium spp.: An important new nitrogen to the tropical and subtropical North Atlantic Ocean. Global Biogeochem. Cycles 19. doi: 10.1029/2004GB00231.
  • Chabot, J. R., Pedraza, J. M., Luitel, P. & van Oudenaarden, A. 2007. Stochastic gene expression out-of-steady-state in the cyanobacterial circadian clock. Nature 450:124952.
  • Church, M. J., Björkman, K. M., Karl, D. M., Saito, M. A. & Zehr, J. P. 2008. Regional distributions of nitrogen-fixing bacteria in the Pacific Ocean. Limnol. Oceangr. 53:6377.
  • Church, M. J., Jenkins, B. D., Karl, D. M. & Zehr, J. P. 2005b. Vertical distributions of nitrogen-fixing phylotypes at Station ALOHA in the oligotrophic North Pacific Ocean. Aquat. Microb. Ecol. 38:314.
  • Church, M. J., Short, C. M., Jenkins, B. D., Karl, D. M. & Zehr, J. P. 2005a. Temporal patterns of nitrogenase gene (nifH) expression in the oligotrophic North Pacific Ocean. Appl. Environ. Microb. 71:536270.
  • Codispoti, L. 1995. Is the ocean losing fixed nitrogen? Nature 376:724.
  • Compaoré, J. & Stal, L. J. 2010. Oxygen and the light-dark cycle of nitrogenase activity in two unicellular cyanobacteria. Environ. Microbiol. 12:5462.
  • Corzo, A., Morillo, J. A. & Rodriguez, S. 2000. Production of transparent exopolymer particles (TEP) in cultures of Chaetoceros calcitrans under nitrogen limitation. Aquat. Microb. Ecol. 23:6372.
  • De Philippis, R., Margheri, M. C., Materassi, R. & Vincenzini, M. 1998. Potential of unicellular cyanobacteria from saline environments as exopolysaccharide producers. Appl. Environ. Microb. 64:11302.
  • De Philippis, R., Margheri, M. C., Pelosi, E. & Ventura, S. 1993. Exopolysaccharide production by a unicellular cuanobacterium isolated from a hypersaline habitat. J. Appl. Phycol. 5:38794.
  • De Philippis, R. & Vincenzini, M. 1998. Exocellular polysaccharides from cyanobacteria and their possible applications. FEMS Microbiol. Rev. 22:15175.
  • Dore, J. E., Brum, J. R., Tupas, L. M. & Karl, D. M. 2002. Seasonal and interannual variability in sources of nitrogen supporting export in oligotrophic subtropical North Pacific Ocean. Limnol. Oceangr. 47:1595607.
  • El- Shehawy, R., Lugomela, C., Ernst, A. & Bergman, B. 2003. Diurnal expression of hetR and diazocyte development in the filamentous non-heterocystous cyanobacterium Trichodesmium erythraeum. Microbiology 149:113946.
  • Falcon, L. I., Carpenter, E. J., Cipriano, F., Bergman, B. & Capone, D. G. 2004. N2 fixation by unicellular bacterioplankton from the Atlantic and Pacific oceans: Phylogeny and in-situ rates. Appl. Environ. Microb. 70:76570.
  • Falcon, L. I., Pluvinage, S. & Carpenter, E. J. 2005. Growth kinetics of marine unicellular N2-fixing cyanobacterial isolates in continuous culture in relation to phosphorus and temperature. Mar. Ecol. Prog. Ser. 285:39.
  • Fay, P. 1992. Oxygen relations of nitrogen fixation in cyanobacteria. Microbiol. Rev. 56:34073.
  • Finzi-Hart, J. A., Pett-Ridge, J., Weber, P. K., Popa, R., Fallon, S. J., Gunderson, T., Hutcheon, I. D., Nealson, K. H. & Capone, D. G. 2009. Fixation and fate of C and N in the cyanobacterium Trichodesmium using nanometer-scale secondary ion mass spectrometry. Proc. Natl Acad. Sci. USA 106:634550.
  • Fong, A. A., Karl, D. M., Lukas, R., Letelier, R. M., Zehr, J. P. & Church, M. J. 2008. Nitrogen fixation in an anticyclonic eddy in the oligotrophic North Pacific Ocean. ISME J. 2:6637.
  • Foster, R. A., Subramaniam, A., Mahaffey, C., Carpenter, E. J., Capone, D. G. & Zehr, J. P. 2007. Influence of the Amazon River Plume on distributions of free-living and symbiotic cyanobacteria in the Western Tropical North Atlantic Ocean. Limnol. Oceanogr. 52:51732.
  • Gallon, J. R. & Chaplin, A. E. 1988. Nitrogen fixation. In Rogers, L. J. & Gallon, J. R. [Eds.] The Biochemistry of Algae and Cyanobacteria. Oxford University Press, Oxford, UK. pp. 14773.
  • Goebel, N. L., Edwards, C. A., Carter, B. J., Achilles, K. M. & Zehr, J. P. 2008. Growth and carbon content of three different-sized diazotrophic czanobacteria observed in the subtropical North Pacific. J. Phycol. 44:121220.
  • Goebel, N. L., Edwards, C. E., Church, M. J. & Zehr, J. P. 2007. Modeled contributions of three types of diazotrophs to nitrogen fixation at Station ALOHA. ISME J. 1:60619.
  • Grabowski, M. N. W., Church, M. J. & Karl, D. M. 2008. Nitrogen fixation rates and controls at Stn ALOHA. Aquat. Micro. Ecol. 52:17583.
  • Griffiths, M. S. H., Gallon, J. R. & Chaplin, A. E. 1987. The diurnal pattern of dinitrogen fixation by cyanobacteria in situ. New Phytol. 107:64957.
  • Großkopf, T., Mohr, W., Baustian, T., Schunck, H., Gill, D., Kuypers, M. M. M., Lavik, G., Schmitz, R. A., Wallace, D. W. & LaRoche, J. 2012. Doubling of marine dinitrogen-fixation rates based on direct measurements. Nature 488:3614.
  • Gruber, N. 2005. A bigger nitrogen fix. Nature 436:7867.
  • Kaern, M., Elston, T. C., Blake, W. J. & Collins, J. J. 2005. Stochasticity in gene expression: From theories to phenotypes. Nat. Rev. Genet. 6:45164.
  • Karl, D. M., Letelier, R., Tupas, L., Dore, J., Christian, J. & Hebel, D. 1997. The role of nitrogen fixation in biogeochemical cycling in the subtropical North Pacific Ocean. Nature 388:5338.
  • Karl, D. M., Michaels, A., Bergman, B., Capone, D. G., Carpenter, E. J., Letelier, R., Lipshultz, F., Paerl, H., Sigman, D. & Stal, L. 2002. Dinitrogen fixation in the world's oceans. Biogeochemistry 57/58:4798.
  • Kitajima, S., Furuya, K., Hashihama, F., Takeda, S. & Kanda, J. 2009. Latitudinal distribution of diazotrophs and their nitrogen fixation in the tropical and subtropical western North Pacific. Limnol. Oceangr. 54:53747.
  • Lechene, C. P., Luyten, Y., McMahon, G. & Distel, D. L. 2007. Quantitative imaging of nitrogen fixation by individual bacteria within animal cells. Science 317:15636.
  • Le Moal, M. & Biegala, I. 2009. Diazotrophic unicellular cyanobacteria in the northwestern Mediterranean Sea: a seasonal cycle. Limnol. Oceanogr. 54:84555.
  • Leteliar, R. M. & Karl, D. M. 1996. The role of Trichodesmium spp. in the productivity of the subtropical North Pacific Ocean. Mar. Ecol. Prog. Ser. 133:26373.
  • Lundgren, P., Söderbäck, E., Singer, A., Carpenter, E. J. & Bergman, B. 2001. Katagnymene: characterization of a novel marine diazotroph. J. Phycol. 37:105262.
  • Mague, T., Weare, N. & Holm-Hansen, O. 1974. Nitrogen fixation in the North Pacific Ocean. Mar. Biol. 24:10919.
  • Michaels, A., Olson, D., Sarmiento, J., Ammerman, J., Fanning, K., Jahnke, R., Knap, A. H., Lipschultz, F. & Prospero, J. M. 1996. Inputs, losses and transformations of nitrogen and phosphorus in the pelagic North Atlantic Ocean. Biogeochemistry 35:181226.
  • Mohr, W., Großkopf, T., Wallace, D. R. W. & LaRoche, J. 2010b. Methodological underestimation of oceanic nitrogen fixation rates. PLoS ONE 9:17.
  • Mohr, W., Intermaggio, M. P. & LaRoche, J. 2010a. Diel rhythm of nitrogen and carbon metabolism in the unicellular, diazotrophic cyanobacterium Crocosphaera watsonii WH8501. Environ. Microbiol. 12:41221.
  • Moisander, P. H., Beinart, R. A., Hewson, I., White, A. E., Johnson, K. S., Carlson, C. A., Montoya, J. P. & Zehr, J. P. 2010. Unicellular cyanobacterial distributions broaden the oceanic N2 fixation domain. Science 327:15124.
  • Monteiro, F., Follows, M. J. & Dutkiewicz, S. 2010. Distribution of diverse nitrogen fixers in the global ocean. Global Biogeochem. Cy. 24:GB3017. doi: 10.1029/2009GB003731
  • Montoya, J. P., Holl, C. M., Zehr, J. P., Hansen, A., Villareal, T. A. & Capone, D. G. 2004. High rates of N2 fixation by unicellular diazotrophs in the oligotrophic Pacific Ocean. Nature 430:102731.
  • Montoya, J. P., Voss, M., Kahler, P. & Capone, D. G. 1996. A simple, high-precision, high-sensitivity tracer assay for N2 fixation. Appl. Environ. Microb. 62:98693.
  • Mulholland, M., Bronk, D. A. & Capone, D. G. 2004. Dinitrogen fixation and release of ammonium and dissolved organic nitrogen by Trichodesmium IMS 101. Aquat. Microb. Ecol. 37:8594.
  • Musat, M., Foster, R. A., Vagner, T., Adam, B. A. & Kuypers, M. M. M. 2011. Detecting metabolic activities in single cells, with emphasis on nanoSIMS. FEMS Microbiol. Rev. 36:486511.
  • Needoba, J. A., Foster, R. A., Sakamoto, C., Zehr, J. P. & Johnson, K. S. 2007. Nitrogen fixation by unicellular diazotrophic cyanobacteria in the temperate North Pacific Ocean. Limnol. Oceangr. 52:131727.
  • Pennebaker, K., Mackey, K. R. M., Smith, R. M., Williams, S. B. & Zehr, J. P. 2010. Diel cycling of DNA staining and nifH gene regulation in the unicellular cyanobacterium Crocosphaera watsonii strain WH 8501 (Cyanophyta). Environ. Microbiol. 12:100110.
  • Pereira, S., Zille, A., Micheletti, E., Moradas-Ferreira, P., De Philippis, R. & Tamagnini, P. 2009. Complexity of cyanobacterial exopolysaccharides: composition, structures, inducing factors and putative genes involved in their biosynthesis and assembly. FEMS Microbiol. Rev. 33:91741.
  • Polerecky, L., Adam, B., Milucka, J., Musat, N., Vagner, T. & Kuypers, M. M. M. 2012. Look@NanoSIMS – a tool for the analysis of nanoSIMS data in environmental microbiology. Environ. Microbiol. 4:100923.
  • Postgate, J. 1998. Nitrogen Fixation, 3rd ed. Cambridge University Press, Cambridge, United Kingdom, 61 pp.
  • Reddy, K. J., Soper, B. W., Tang, J. & Bradley, R. L. 1996. Phenotypic variation in exopolysaccharide production in the marine, aerobic nitrogen-fixing unicellular cyanobacterium Cyanothece sp. World. J. Microb. Biot. 12:3118.
  • Saito, M. A., Bertrand, E. M., Dutkiewicz, S., Bulygin, V. V., Moran, D. M., Monteiro, F. M., Follows, M. J., Valois, F. W. & Waterbury, J. B. 2011. Iron conservation by reduction of metalloenzyme inventories in the marine diazotroph Crocosphaera watsonii. Proc. Natl Acad. Sci. USA 108:21849.
  • Sandh, G., Xu, L. & Bergman, B. 2012. Diazocyte development in the marine diazotrophic cyanobacterium Trichodesmium. Microbiology 158:34552.
  • Schneegurt, M. A., Sherman, D. M., Nayer, S. & Sherman, L. A. 1994. Oscillating behavior of carbohydrate granule formation and dinitrogen fixation in the cyanobacterium Cyanothece sp. strain ATCC51142. J. Bacteriol. 176:158697.
  • Shi, T., Ilikchyan, I., Rabouille, S. & Zehr, J. P. 2010. Genome-wide analysis of diel gene expression in the unicellular N2-fixing cyanobacterium Crocosphaera watsonii WH 8501. ISME J. 4:62132.
  • Sohm, J.A., Edwards, B.R., Wilson, B.G. & Webb, E.A. 2011b. Constitutive extracellular polysaccharide (EPS) production by specific isolates of Crocosphaera watsonii. Frontiers in Microbiol. 2:19. Doi. 10.3389/fmicb.2011.00229.
  • Sohm, J. A., Subramaniam, A., Gunderson, T. E., Carpenter, E. J. & Capone, D. G. 2011a. Nitrogen fixation by Trichodesmium and unicellular diazotrophs in the North Pacific Subtropical Gyre. Journal Geophys. Res. 116:112.
  • Sun, J. & Liu, D. Y. 2003. Geometric models for calculating cell biovolume and surface area for phytoplankton. J. Plankton Res. 25:133146.
  • Tease, B., Jurgens, U. J., Golecki, J. R., Heinrich, U. R., Rippka, R. & Weckesser, J. 1991. Fine-structural and chemical-analyses on inner and outer sheath of the cyanobacterium Gloeothece sp. PCC-6909. Anton. Leeuw. Int. J. G. 59:2734.
  • Tuit, C., Waterbury, J. & Ravizzaz, G. 2004. Diel variation of molybdenum and iron in marine diazotrophic cyanobacteria. Limnol. Oceanogr. 49:97890.
  • Verity, P. G., Robertson, C. Y., Tronzo, C. R., Andrews, M. G., Nelson, J. R. & Sieracki, M. E. 1992. Relationships between cell volume and the carbon and nitrogen content of marine photosynthetic nanoplankton. Limnol. Oceanogr. 37:143446.
  • Wagner, M. 2009. Single-cell ecophysiology of microbes as revealed by raman microspectroscopy or secondary ion mass spectrometry imaging. Ann. Rev. Microbiol. 63:41129.
  • Waterbury, J. B. & Rippka, R. 1989. The order Chroococcales. In Krieg, N.R. and Holt, J. B. [Ed.] Bergey's Manual of Systematic Bacteriology. Vol. 3. Williams & Wilkens Baltimore, MD, USA, pp. 17281746.
  • Webb, E. A., Ehrenreich, I. M., Brown, S. L., Valois, F. W. & Waterbury, J. B. 2009. Phenotypic and genotypic characterization of multiple strains of the diazotrophic cyanobacterium, Crocosphaera watsonii, isolated from the open ocean. Environ. Microbiol. 11:33848.
  • Wilson, S. T., Böttjer, D., Church, M. J. & Karl, D. M. 2012. Comparative assessment of nitrogen fixation methodologies conducted in the oligotrophic North Pacific Ocean. Appl. Envir. Microbiol. 78:651623.
  • Wilson, S. T., Foster, R. A., Zehr, J. P. & Karl, D. M. 2010. Hydrogen production by Trichodesmium erythraeum, Cyanothece sp. and Crocosphaera watsonii. Aquat. Microb. Ecol. 59:197206.
  • Wolk, C. P., Thomas, J., Shaffer, P. W., Austin, S. M. & Galonsky, A. 1976. Pathway of nitrogen metabolism after fixation of 13N-labeled nitrogen gas by the cyanobacterium Anabaena cylindrical. J. Biol. Chem. 251:502734.
  • Zehr, J. P., Bench, S. R., Mondragon, E. A., McCarren, J. & DeLong, E. F. 2007b. Low genomic diversity in tropical oceanic N2-fixing cyanobacteria. Proc. Natl. Acad. Sci. USA 104:1780712.
  • Zehr, J. P., Mellon, M. T. & Zani, S. 1998. New nitrogen-fixing microorganisms detected in oligotrophic oceans by amplification of nitrogenase (nifH) genes. Appl. Environ. Microbiol. 64:344450.
  • Zehr, J. P., Montoya, J. P., Hewson, I., Mondragon, E., Short, C. M., Hansen, A., Jenkins, B. D., Church, M. J. & Karl, D. M. 2007a. Experiments linking nitrogenase gene expression to nitrogen fixation in the North Pacific subtropical gyre. Limnol. Oceanogr. 52:16983.
  • Zehr, J. P. & Ward, B. B. 2002. Nitrogen cycling in the ocean: New perspectives on processes and paradigms. Appl. Environ. Microbiol. 68:101524.
  • Zehr, J. P., Waterbury, J. B., Turner, P. J., Montoya, J. P., Omoregie, E., Steward, G. F., Hansen, A. & Karl, D. M. 2001. Unicellular cyanobacteria fix N2 in the subtropical North Pacific Ocean. Nature 412:6358.