Articles | Volume 16, issue 18
https://doi.org/10.5194/acp-16-12347-2016
https://doi.org/10.5194/acp-16-12347-2016
Research article
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29 Sep 2016
Research article | Highlight paper |  | 29 Sep 2016

Screening of cloud microorganisms isolated at the Puy de Dôme (France) station for the production of biosurfactants

Pascal Renard, Isabelle Canet, Martine Sancelme, Nolwenn Wirgot, Laurent Deguillaume, and Anne-Marie Delort

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Cited articles

Abdul-Razzak, H. and Ghan, S. J.: Parameterization of the influence of organic surfactants on aerosol activation, J. Geophys. Res.-Atmos., 109, D03205, https://doi.org/10.1029/2003JD004043, 2004.
Ahern, H. E., Walsh, K. A., Hill, T. C. J., and Moffett, B. F.: Fluorescent pseudomonads isolated from Hebridean cloud and rain water produce biosurfactants but do not cause ice nucleation, Biogeosciences, 4, 115–124, https://doi.org/10.5194/bg-4-115-2007, 2007.
Aller, J. Y., Kuznetsova, M. R., Jahns, C. J., and Kemp, P. F.: The sea surface microlayer as a source of viral and bacterial enrichment in marine aerosols, J. Aerosol Sci., 36, 801–812, https://doi.org/10.1016/j.jaerosci.2004.10.012, 2005.
Amato, P., Ménager, M., Sancelme, M., Laj, P., Mailhot, G., and Delort, A.-M.: Microbial population in cloud water at the Puy de Dôme: Implications for the chemistry of clouds, Atmos. Environ., 39, 4143–4153, https://doi.org/10.1016/j.atmosenv.2005.04.002, 2005.
Amato, P., Parazols, M., Sancelme, M., Mailhot, G., Laj, P., and Delort, A.-M.: An important oceanic source of micro-organisms for cloud water at the Puy de Dôme (France), Atmos. Environ., 41, 8253–8263, https://doi.org/10.1016/j.atmosenv.2007.06.022, 2007a.
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A total of 480 microorganisms collected from 39 clouds sampled in France were isolated and identified. This unique collection was screened for biosurfactant production by measuring the surface tension. 41 % of the tested strains were active producers. Pseudomonas, the most frequently detected genus in clouds, was the dominant group for the production of biosurfactants. Further, the potential impact of the production of biosurfactants by cloud microorganisms on atmospheric processes is discussed.
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