Articles | Volume 18, issue 21
Atmos. Chem. Phys., 18, 16063–16079, 2018
https://doi.org/10.5194/acp-18-16063-2018
Atmos. Chem. Phys., 18, 16063–16079, 2018
https://doi.org/10.5194/acp-18-16063-2018

Research article 08 Nov 2018

Research article | 08 Nov 2018

Birch leaves and branches as a source of ice-nucleating macromolecules

Laura Felgitsch et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Hinrich Grothe on behalf of the Authors (04 May 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (19 May 2018) by Ryan Sullivan
RR by Anonymous Referee #2 (29 Jun 2018)
ED: Reconsider after major revisions (02 Jul 2018) by Ryan Sullivan
AR by Hinrich Grothe on behalf of the Authors (07 Sep 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (18 Sep 2018) by Ryan Sullivan
RR by Anonymous Referee #2 (29 Sep 2018)
ED: Publish subject to technical corrections (01 Oct 2018) by Ryan Sullivan
AR by Hinrich Grothe on behalf of the Authors (02 Oct 2018)  Author's response    Manuscript
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Short summary
Birch trees are possible sources of ice-nucleating macromolecules (INM). Pollen of birch trees are known to be ice nucleation active and were recently shown to release INM. For our work we examined 30 samples of birch branches, consisting of leaves, secondary wood (brown with no photosynthetic activity), and primary wood (green, photosynthetically active). The samples were milled and extracted aqueously. All samples contained INM. Most samples froze at temperatures comparable to birch pollen.
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