Heterogeneous ice nucleation activity of bacteria: new laboratory experiments at simulated cloud conditions
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چکیده
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Heterogeneous ice nucleation activity of bacteria: new laboratory experiments at simulated cloud conditions
The ice nucleation activities of five different Pseudomonas syringae, Pseudomonas viridiflava and Erwinia herbicola bacterial species and of SnomaxTM were investigated in the temperature range between −5 and −15C. Water suspensions of these bacteria were directly sprayed into the cloud chamber of the AIDA facility of Forschungszentrum Karlsruhe at a temperature of −5.7C. At this temperature, ab...
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Ice-nucleation negative fluorescent pseudomonads isolated from Hebridean cloud and rain water produce biosurfactants H. E. Ahern, K. A. Walsh, T. C. J. Hill, and B. F. Moffett University of East London, Romford Road, Stratford, London, UK Environment Agency, Wallingford, UK Received: 1 September 2006 – Accepted: 15 September 2006 – Published: 4 October 2006 Correspondence to: T. C. J. Hill (t.c...
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In the atmosphere the importance of biological ice nuclei is still not well understood. Therefore we investigated the ice nucleation behavior of Snomax, used as a model for bacterial ice nucleation, and birch pollen washing water, used as a model for pollen induced ice nucleation. Thereby we quantified the ice nucleation behavior of the INA protein complexes controlling the ice nucleation abili...
متن کاملIce nucleation by sea-ice bacteria
High-resolution ice nucleation spectra of sea-ice bacteria: implications for cloud formation and life in frozen environments K. Junge and B. D. Swanson University of Washington, Applied Physics Laboratory – Polar Science Center, Mail-box: 355640, Henderson Hall 1013 NE 40th St, Seattle, WA 98195, USA University of Washington, Earth and Space Sciences, Box 351310, Seattle, WA 98195, USA Received...
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ژورنال
عنوان ژورنال: Biogeosciences
سال: 2008
ISSN: 1726-4189
DOI: 10.5194/bg-5-1425-2008