干旱区生态环境知识资源中心(Arid): Survival and ice nucleation activity of Pseudomonas syringae strains exposed to simulated high-altitude atmospheric conditions

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DOI	10.1038/s41598-019-44283-3
	Survival and ice nucleation activity of Pseudomonas syringae strains exposed to simulated high-altitude atmospheric conditions
	de Araujo, Gabriel Guarany 1; Rodrigues, Fabio 2; Teixeira Goncalves, Fabio Luiz 3; Galante, Douglas 4
通讯作者	Galante, Douglas
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2019
卷号	9
英文摘要	Pseudomonas syringae produces highly efficient biological ice nuclei (IN) that were proposed to influence precipitation by freezing water in clouds. This bacterium may be capable of dispersing through the atmosphere, having been reported in rain, snow, and cloud water samples. This study assesses its survival and maintenance of IN activity under stressing conditions present at high altitudes, such as UV radiation within clouds. Strains of the pathovars syringae and garcae were compared to Escherichia coli. While UV-C effectively inactivated these cells, the Pseudomonas were much more tolerant to UV-B. The P. syringae strains were also more resistant to radiation from a solar simulator, composed of UV-A and UV-B, while only one of them suffered a decline in IN activity at -5 degrees C after long exposures. Desiccation at different relative humidity values also affected the IN, but some activity at -5 degrees C was always maintained. The pathovar garcae tended to be more resistant than the pathovar syringae, particularly to desiccation, though its IN were found to be generally more sensitive. Compared to E. coli, the P. syringae strains appear to be better adapted to survival under conditions present at high altitudes and in clouds.
类型	Article
语种	英语
国家	Brazil
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000468770600033
WOS关键词	AIRBORNE BACTERIA ; AERIAL DISPERSAL ; ATACAMA DESERT ; FUNGAL SPORES ; CLOUD ; NUCLEI ; RADIATION ; MICROORGANISMS ; WATER ; RAIN
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218786
作者单位	1.Univ Sao Paulo, Interun Grad Program Biotechnol, Ave Prof Lineu Prestes 2415, BR-05508900 Sao Paulo, SP, Brazil; 2.Univ Sao Paulo, Dept Fundamental Chem, Inst Chem, Ave Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP, Brazil; 3.Univ Sao Paulo, Dept Atmospher Sci, Inst Astron Geophys & Atmospher Sci, Rua Matao 1226, BR-05508090 Sao Paulo, SP, Brazil; 4.Brazilian Ctr Res Energy & Mat, Brazilian Synchrotron Light Lab, Ave Giuseppe Maximo Scolfaro 10000, BR-13083100 Campinas, SP, Brazil
推荐引用方式 GB/T 7714	de Araujo, Gabriel Guarany,Rodrigues, Fabio,Teixeira Goncalves, Fabio Luiz,et al. Survival and ice nucleation activity of Pseudomonas syringae strains exposed to simulated high-altitude atmospheric conditions[J],2019,9.
APA	de Araujo, Gabriel Guarany,Rodrigues, Fabio,Teixeira Goncalves, Fabio Luiz,&Galante, Douglas.(2019).Survival and ice nucleation activity of Pseudomonas syringae strains exposed to simulated high-altitude atmospheric conditions.SCIENTIFIC REPORTS,9.
MLA	de Araujo, Gabriel Guarany,et al."Survival and ice nucleation activity of Pseudomonas syringae strains exposed to simulated high-altitude atmospheric conditions".SCIENTIFIC REPORTS 9(2019).