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Wang X, Sultana CM, Trueblood J, et al. Microbial Control of Sea Spray Aerosol Composition: A Tale of Two Blooms. ACS Cent Sci. 2015;1(3):124-31doi: 10.1021/acscentsci.5b00148.
Wang, X., Sultana, C. M., Trueblood, J., Hill, T. C., Malfatti, F., Lee, C., Laskina, O., Moore, K. A., Beall, C. M., McCluskey, C. S., Cornwell, G. C., Zhou, Y., Cox, J. L., Pendergraft, M. A., Santander, M. V., Bertram, T. H., Cappa, C. D., Azam, F., DeMott, P. J., Grassian, V. H., & Prather, K. A. (2015). Microbial Control of Sea Spray Aerosol Composition: A Tale of Two Blooms. ACS central science, 1(3), 124-31. https://doi.org/10.1021/acscentsci.5b00148
Wang, Xiaofei, et al. "Microbial Control of Sea Spray Aerosol Composition: A Tale of Two Blooms." ACS central science vol. 1,3 (2015): 124-31. doi: https://doi.org/10.1021/acscentsci.5b00148
Wang X, Sultana CM, Trueblood J, Hill TC, Malfatti F, Lee C, Laskina O, Moore KA, Beall CM, McCluskey CS, Cornwell GC, Zhou Y, Cox JL, Pendergraft MA, Santander MV, Bertram TH, Cappa CD, Azam F, DeMott PJ, Grassian VH, Prather KA. Microbial Control of Sea Spray Aerosol Composition: A Tale of Two Blooms. ACS Cent Sci. 2015 Jun 24;1(3):124-31. doi: 10.1021/acscentsci.5b00148. Epub 2015 May 18. PMID: 27162962; PMCID: PMC4827658.
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ACS Cent Sci. 2015 Jun 24;1(3):124-31. doi: 10.1021/acscentsci.5b00148. Epub 2015 May 18.

Microbial Control of Sea Spray Aerosol Composition: A Tale of Two Blooms.

ACS central science

Xiaofei Wang, Camille M Sultana, Jonathan Trueblood, Thomas C J Hill, Francesca Malfatti, Christopher Lee, Olga Laskina, Kathryn A Moore, Charlotte M Beall, Christina S McCluskey, Gavin C Cornwell, Yanyan Zhou, Joshua L Cox, Matthew A Pendergraft, Mitchell V Santander, Timothy H Bertram, Christopher D Cappa, Farooq Azam, Paul J DeMott, Vicki H Grassian, Kimberly A Prather

Affiliations

  1. Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States.
  2. Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United States.
  3. Department of Atmospheric Science, Colorado State University , Fort Collins, Colorado 80523, United States.
  4. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States; National Institute of Oceanography and Experimental Geophysics, Trieste 34100, Italy.
  5. Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92093, United States.
  6. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States; State Key Laboratory of Marine Environmental Science and Key Laboratory of the MOE for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361005, P. R. China.
  7. Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States.
  8. Department of Civil and Environmental Engineering, University of California, Davis , Davis, California 95616, United States.
  9. Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States.

PMID: 27162962 PMCID: PMC4827658 DOI: 10.1021/acscentsci.5b00148

Abstract

With the oceans covering 71% of the Earth, sea spray aerosol (SSA) particles profoundly impact climate through their ability to scatter solar radiation and serve as seeds for cloud formation. The climate properties can change when sea salt particles become mixed with insoluble organic material formed in ocean regions with phytoplankton blooms. Currently, the extent to which SSA chemical composition and climate properties are altered by biological processes in the ocean is uncertain. To better understand the factors controlling SSA composition, we carried out a mesocosm study in an isolated ocean-atmosphere facility containing 3,400 gallons of natural seawater. Over the course of the study, two successive phytoplankton blooms resulted in SSA with vastly different composition and properties. During the first bloom, aliphatic-rich organics were enhanced in submicron SSA and tracked the abundance of phytoplankton as indicated by chlorophyll-a concentrations. In contrast, the second bloom showed no enhancement of organic species in submicron particles. A concurrent increase in ice nucleating SSA particles was also observed only during the first bloom. Analysis of the temporal variability in the concentration of aliphatic-rich organic species, using a kinetic model, suggests that the observed enhancement in SSA organic content is set by a delicate balance between the rate of phytoplankton primary production of labile lipids and enzymatic induced degradation. This study establishes a mechanistic framework indicating that biological processes in the ocean and SSA chemical composition are coupled not simply by ocean chlorophyll-a concentrations, but are modulated by microbial degradation processes. This work provides unique insight into the biological, chemical, and physical processes that control SSA chemical composition, that when properly accounted for may explain the observed differences in SSA composition between field studies.

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