The adsorption of fungal ice-nucleating proteins on mineral dusts: a  terrestrial reservoir of atmospheric ice-nucleating particles

O'Sullivan, Daniel; Murray, Benjamin J.; Ross, James F.; Webb, Michael E.

doi:10.5194/acp-16-7879-2016

Articles | Volume 16, issue 12

https://doi.org/10.5194/acp-16-7879-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-7879-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 12

Research article

|

29 Jun 2016

Research article |

| 29 Jun 2016

The adsorption of fungal ice-nucleating proteins on mineral dusts: a terrestrial reservoir of atmospheric ice-nucleating particles

Daniel O'Sullivan, Benjamin J. Murray, James F. Ross, and Michael E. Webb

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Short summary

In the absence of particles which can trigger freezing, cloud droplets can exist in a supercooled liquid state well below the melting point. However, the sources of efficient ice-nucleating particles in the atmosphere are uncertain. Here we show that ice-nucleating proteins produced by soil fungi can bind to clay particles in soils. Hence, the subsequent dispersion of soil particles into the atmosphere acts as a route through which biological ice nucleators can influence clouds.