Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-16063-2018 |
Birch leaves and branches as a source of ice-nucleating macromolecules | |
Felgitsch, Laura1; Baloh, Philipp1; Burkart, Julia1; Mayr, Maximilian1; Momken, Mohammad E.1; Seifried, Teresa M.1; Winkler, Philipp1; Schmale, David G., III2; Grothe, Hinrich1 | |
2018-11-08 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:21页码:16063-16079 |
文章类型 | Article |
语种 | 英语 |
国家 | Austria; USA |
英文摘要 | Birch pollen are known to release ice-nucleating macromolecules (INM), but little is known about the production and release of INM from other parts of the tree. We examined the ice nucleation activity of samples from 10 different birch trees (Betula spp.). Samples were taken from nine birch trees in Tyrol, Austria, and from one tree in a small urban park in Vienna, Austria. Filtered aqueous extracts of 30 samples of leaves, primary wood (new branch wood, green in colour, photosynthetically active), and secondary wood (older branch wood, brown in colour, with no photosynthetic activity) were analysed in terms of ice nucleation activity using VODCA (Vienna Optical Droplet Crystallization Analyser), a cryo microscope for emulsion samples. All samples contained ice-nucleating particles in the submicron size range. Concentrations of ice nuclei ranged from 6.7 x 10(4) to 6.1 x 10(9) mg(-1) sample. Mean freezing temperatures varied between -15.6 and -31.3 degrees C; the range of temperatures where washes of birch pollen and dilutions thereof typically freeze. The freezing behaviour of three concentrations of birch pollen washing water (initial wash, 1 : 100, and 1 : 10 000) were significantly associated with more than a quarter of our samples, including some of the samples with highest and lowest activity. This indicates a relationship between the INM of wood, leaves, and pollen. Extracts derived from secondary wood showed the highest concentrations of INM and the highest freezing temperatures. Extracts from the leaves exhibited the highest variation in INM and freezing temperatures. Infrared spectra of the extracts and tested birch samples show qualitative similarity, suggesting the chemical components may be broadly similar. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000449556900004 |
WOS关键词 | TRANSFORM INFRARED-SPECTROSCOPY ; BIOLOGICAL AEROSOL-PARTICLES ; BETULA-PENDULA ; PSEUDOMONAS-SYRINGAE ; IR SPECTROSCOPY ; AIR-POLLUTANTS ; SOOT AEROSOLS ; FT-IR ; POLLEN ; LEAF |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23882 |
专题 | 地球科学 |
作者单位 | 1.TU Wien, Inst Mat Chem, A-1060 Vienna, Austria; 2.Virginia Tech, Sch Plant & Environm Sci, Blacksburg, VA 24061 USA |
推荐引用方式 GB/T 7714 | Felgitsch, Laura,Baloh, Philipp,Burkart, Julia,et al. Birch leaves and branches as a source of ice-nucleating macromolecules[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(21):16063-16079. |
APA | Felgitsch, Laura.,Baloh, Philipp.,Burkart, Julia.,Mayr, Maximilian.,Momken, Mohammad E..,...&Grothe, Hinrich.(2018).Birch leaves and branches as a source of ice-nucleating macromolecules.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(21),16063-16079. |
MLA | Felgitsch, Laura,et al."Birch leaves and branches as a source of ice-nucleating macromolecules".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.21(2018):16063-16079. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论