DOI: 10.1007/s12665-020-8853-4
论文题名: Potentially pathogenic bacteria isolated from diverse habitats in Spitsbergen, Svalbard
作者: Mogrovejo-Arias D.C. ; Brill F.H.H. ; Wagner D.
刊名: Environmental Earth Sciences
ISSN: 18666280
出版年: 2020
卷: 79, 期: 5 语种: 英语
英文关键词: Arctic
; Climate change
; Hemolysins
; Pathogens
; Svalbard
; Virulence
Scopus关键词: Blood
; Climate change
; Competition
; Ecosystems
; Global warming
; Mammals
; Nutrients
; Pathogens
; Reservoirs (water)
; Arctic
; Competitive advantage
; Continuous exploration
; Environmental species
; Hemolysins
; Microbial communities
; Svalbard
; Virulence
; Bacteria
; archipelago
; arctic environment
; bacterium
; cell
; climate change
; exploration
; genetic analysis
; isolated population
; microbial community
; pathogen
; phenotype
; virulence
; Arctic
; Spitsbergen
; Svalbard
; Svalbard and Jan Mayen
; Bacteria (microorganisms)
; Mammalia
; Ovis aries
英文摘要: The Arctic ecosystem, a reservoir of genetic microbial diversity, represents a virtually unlimited source of microorganisms that could interact with human beings. Despite continuous exploration of Arctic habitats and description of their microbial communities, bacterial phenotypes commonly associated with pathogenicity, such as hemolytic activity, have rarely been reported. In this study, samples of snow, fresh and marine water, soil, and sediment from several habitats in the Arctic archipelago of Svalbard were collected during Summer, 2017. Bacterial isolates were obtained after incubation on oligotrophic media at different temperatures and their hemolytic potential was assessed on sheep blood agar plates. Partial (α) or true (β) hemolysis was observed in 32 out of 78 bacterial species. Genes expressing cytolytic compounds, such as hemolysins, likely increase the general fitness of the producing microorganisms and confer a competitive advantage over the availability of nutrients in natural habitats. In environmental species, the nutrient-acquisition function of these compounds presumably precedes their function as toxins for mammalian erythrocytes. However, in the light of global warming, the presence of hemolytic bacteria in Arctic environments highlights the possible risks associated with these microorganisms in the event of habitat melting/destruction, ecosystem transition, and re-colonization. © 2020, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158940
Appears in Collections: 气候变化与战略
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作者单位: Dr. Brill + Partner GmbH Institut für Hygiene und Mikrobiologie, Stiegstück 34, Hamburg, 22339, Germany; Section Geomicrobiology, GFZ German Research Center for Geosciences, Telegrafenberg C-425, Potsdam, 14473, Germany; Institute of Geosciences, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam, 14476, Germany
Recommended Citation:
Mogrovejo-Arias D.C.,Brill F.H.H.,Wagner D.. Potentially pathogenic bacteria isolated from diverse habitats in Spitsbergen, Svalbard[J]. Environmental Earth Sciences,2020-01-01,79(5)