Biogeosciences
Biogeosciences
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Articles | Volume 18, issue 20
Articles | Volume 18, issue 20
https://doi.org/10.5194/bg-18-5751-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-5751-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 20
Research article
 | 
25 Oct 2021
Research article |  | 25 Oct 2021

Isolation of subpollen particles (SPPs) of birch: SPPs are potential carriers of ice nucleating macromolecules

Julia Burkart, Jürgen Gratzl, Teresa M. Seifried, Paul Bieber, and Hinrich Grothe

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Short summary
Extracts of birch pollen grains are known to be ice nucleation active and thus impact cloud formation and climate. In this study we develop an extraction method to separate subpollen particles from ice nucleating macromolecules. Our results thereby illustrate that ice nucleating macromolecules can be washed off the subpollen particles and that the ice activity is linked to the presence of proteins.
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