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dc.contributor.authorIannone, R.
dc.contributor.authorChernoff, D. I.
dc.contributor.authorPringle, Anne E.
dc.contributor.authorMartin, S. T.
dc.contributor.authorBertram, A. K.
dc.date.accessioned2015-05-18T20:47:01Z
dc.date.issued2011
dc.identifier.citationIannone, R., D. I. Chernoff, A. Pringle, S. T. Martin, and A. K. Bertram. 2011. “The Ice Nucleation Ability of One of the Most Abundant Types of Fungal Spores Found in the Atmosphere.” Atmospheric Chemistry and Physics 11 (3): 1191–1201. doi:10.5194/acp-11-1191-2011.en_US
dc.identifier.issn1680-7324en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:15754069
dc.description.abstractRecent atmospheric measurements show that biological particles are a potentially important class of ice nuclei. Types of biological particles that may be good ice nuclei include bacteria, pollen and fungal spores. We studied the ice nucleation properties of water droplets containing fungal spores from the genus Cladosporium, one of the most abundant types of spores found in the atmosphere. For water droplets containing a Cladosporium spore surface area of ~217 μm2 (equivalent to ~5 spores with average diameters of 3.2 μm ), 1% of the droplets froze by −28.5 °C and 10% froze by –30.1 °C. However, there was a strong dependence on freezing temperature with the spore surface area of Cladosporium within a given droplet. Mean freezing temperatures for droplets containing 1–5 spores are expected to be approximately −35.1 ± 2.3 °C (1σ S. D.). Atmospheric ice nucleation on spores of Cladosporium sp., or other spores with similar surface properties, thus do not appear to explain recent atmospheric measurements showing that biological particles participate as atmospheric ice nuclei. The poor ice nucleation ability of Cladosporium sp. may be attributed to the surface which is coated with hydrophobins (a class of hydrophobic proteins that appear to be widespread in filamentous fungi). Given the ubiquity of hydrophobins on spore surfaces, the current study may be applicable to many fungal species of atmospheric importance.en_US
dc.description.sponsorshipOrganismic and Evolutionary Biologyen_US
dc.language.isoen_USen_US
dc.publisherCopernicus GmbHen_US
dc.relation.isversionofdoi:10.5194/acp-11-1191-2011en_US
dc.relation.hasversionhttp://www.atmos-chem-phys.net/11/1191/2011/acp-11-1191-2011.htmlen_US
dc.relation.hasversionhttps://www.chem.ubc.ca/ice-nucleation-ability-one-most-abundant-types-fungal-spores-found-atmosphereen_US
dash.licenseLAA
dc.titleThe ice nucleation ability of one of the most abundant types of fungal spores found in the atmosphereen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalAtmos. Chem. Phys.en_US
dash.depositing.authorPringle, Anne E.
dc.date.available2015-05-18T20:47:01Z
dc.identifier.doi10.5194/acp-11-1191-2011*
dash.contributor.affiliatedPringle, Anne E.


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