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

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

doi:https://doi.org/10.5194/bg-18-5751-2021

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

Supplement

https://doi.org/10.5194/bg-18-5751-2021-supplement

Video supplement

Birch pollen rupture Julia Burkart and Jürgen Gratzl https://doi.org/10.5281/zenodo.5550102

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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.