<div class="csl-bib-body">
<div class="csl-entry">Pummer, B. G., Atanasova, L., Bauer, H., Bernardi, J., Druzhinina, I., & Grothe, H. (2012). <i>Search for biogenic ice nucleation activity (INA) - a study on Snomax, pollen, moulds and mushrooms</i> [Poster Presentation]. 16th International Conference on Clouds and Precipitation, Leipzig, Germany. http://hdl.handle.net/20.500.12708/47828</div>
</div>
-
dc.identifier.uri
http://hdl.handle.net/20.500.12708/47828
-
dc.description.abstract
The ice nucleation of atmospheric biological particles and the contribution to ice cloud formation is a topic of growing interest, but only partly understood. In our studies we present the results of ice nucleation measurements in the oil immersion mode [1] of a representative spectrum of different species.
Different pollen species show impressive differences in their INA, ranging from quite active (e.g. birch) to nearly inactive (e.g. ragweed). Furthermore, the INA is caused by rather robust macromolecules in the range of 100-300 kDa [2]. Also the dependence of INA on environmental stresses has been investigated.
In the past a few species of Fusarii and lichen [3,4] have shown INA nearly as high as the bacterial ice nucleation proteins, which are the most active ice nuclei known. Other investigated species, however, showed no INA [5]. We searched for INA among abundant moulds and edible mushrooms, most of which have not been investigated before. However, all species except for the INA-positive Fusarium avenaceum showed no or only a slight increase in nuleation temperature in comparison to pure water. Consequently it seems that the ability to express highly-efficient ice nuclei is limited to a small number of fungal species.
en
dc.language.iso
en
-
dc.subject
Climate
-
dc.subject
Bioaerosols
-
dc.subject
Ice
-
dc.title
Search for biogenic ice nucleation activity (INA) - a study on Snomax, pollen, moulds and mushrooms
en
dc.type
Vortrag
de
dc.type
Presentation
en
dc.type.category
Poster Presentation
-
tuw.peerreviewed
false
-
tuw.publication.orgunit
E057-02 - Fachbereich Universitäre Serviceeinrichtung für Transmissions- Elektronenmikroskopie
-
tuw.publication.orgunit
E165-01 - Forschungsbereich Physikalische Chemie
-
tuw.publication.orgunit
E166-05-2 - Forschungsgruppe Mikrobiologie und Angewandte Genomik
-
tuw.publication.orgunit
E164-02-2 - Forschungsgruppe Umweltanalytik
-
tuw.publication.orgunit
E165-01-5 - Forschungsgruppe Physikalische Chemie von Aerosolpartikeln
-
tuw.event.name
16th International Conference on Clouds and Precipitation
-
tuw.event.startdate
30-07-2012
-
tuw.event.enddate
03-08-2012
-
tuw.event.online
On Site
-
tuw.event.type
Event for scientific audience
-
tuw.event.place
Leipzig
-
tuw.event.country
DE
-
tuw.event.presenter
Pummer, Bernhard G.
-
wb.sciencebranch
Chemie
-
wb.sciencebranch
Meteorologie, Klimatologie
-
wb.sciencebranch.oefos
13
-
wb.sciencebranch.oefos
16
-
wb.facultyfocus
Sustainability, Energy, Environment
de
wb.facultyfocus
Sustainability, Energy, Environment
en
wb.facultyfocus.faculty
E150
-
wb.presentation.type
science to science/art to art
-
item.languageiso639-1
en
-
item.openairetype
conference poster not in proceedings
-
item.grantfulltext
none
-
item.fulltext
no Fulltext
-
item.cerifentitytype
Publications
-
item.openairecristype
http://purl.org/coar/resource_type/c_18co
-
crisitem.author.dept
E165 - Institut für Materialchemie
-
crisitem.author.dept
E134 - Institut für Angewandte Physik
-
crisitem.author.dept
E164 - Institut für Chemische Technologien und Analytik
-
crisitem.author.dept
E057-02 - Fachbereich Universitäre Serviceeinrichtung für Transmissions- Elektronenmikroskopie
-
crisitem.author.dept
E166 - Institut für Verfahrenstechnik, Umwelttechnik und technische Biowissenschaften
-
crisitem.author.dept
E165-01-5 - Forschungsgruppe Physikalische Chemie von Aerosolpartikeln
