Articles | Volume 18, issue 23
Atmos. Chem. Phys., 18, 17497–17513, 2018
https://doi.org/10.5194/acp-18-17497-2018

Special issue: Fifth International Workshop on Ice Nucleation (FIN) (ACP/AMT...

Atmos. Chem. Phys., 18, 17497–17513, 2018
https://doi.org/10.5194/acp-18-17497-2018

Research article 11 Dec 2018

Research article | 11 Dec 2018

Activation of intact bacteria and bacterial fragments mixed with agar as cloud droplets and ice crystals in cloud chamber experiments

Kaitlyn J. Suski et al.

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Kaitlyn Suski on behalf of the Authors (15 Oct 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (20 Oct 2018) by Allan Bertram
RR by Anonymous Referee #2 (02 Nov 2018)
RR by Anonymous Referee #1 (07 Nov 2018)
ED: Publish subject to minor revisions (review by editor) (09 Nov 2018) by Allan Bertram
AR by Kaitlyn Suski on behalf of the Authors (19 Nov 2018)  Author's response    Manuscript
ED: Publish as is (21 Nov 2018) by Allan Bertram
AR by Kaitlyn Suski on behalf of the Authors (21 Nov 2018)  Author's response    Manuscript
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Short summary
This work investigates the cloud condensation nuclei and ice nucleation activity of bacteria using cloud chamber data and a single particle mass spectrometer. The size and chemical composition of the cloud residuals show that bacterial fragments mixed with agar growth media activate preferentially over intact bacteria cells as cloud condensation nuclei. Intact bacteria cells do not make it into cloud droplets; they thus cannot serve as immersion-mode ice nucleating particles.
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