Survival and ice nucleation activity of bacteria as aerosols in a cloud simulation chamber
نویسندگان
چکیده
منابع مشابه
Cloud bacteria: diversity, ice nucleation and biosurfactants
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...
متن کاملHeterogeneous 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...
متن کاملTechnical Note: A numerical test-bed for detailed ice nucleation studies in the AIDA cloud simulation chamber
The AIDA (Aerosol Interactions and Dynamics in the Atmosphere) aerosol and cloud chamber of Forschungszentrum Karlsruhe can be used to test the ice forming ability of aerosols. The AIDA chamber is extensively instrumented including pressure, temperature and humidity sensors, and optical particle counters. Expansion cooling using mechanical pumps leads to ice supersaturation conditions and possi...
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...
متن کاملEpiphytic Ice Nucleation-Active Bacteria
Wheat straw smoke aerosols and liquid smoke condensates reduced significantly both the viability and the ice-nucleating activity of Pseudomonas syringae pv. syringae and Erwinia herbicola in vitro and on leaf surfaces in vivo. Highly significant reductions in numbers of bacterial ice nuclei on the surface of both corn and almond were observed after exposure to smoke aerosols. At -5°C, frost inj...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2015
ISSN: 1680-7324
DOI: 10.5194/acp-15-6455-2015