A bacterial ice-binding protein from the Vostok ice core

Raymond, James A.; Christner, Brent C.; Schuster, Stephan C.

doi:10.1007/s00792-008-0178-2

Cited by 102 publications

(100 citation statements)

References 24 publications

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“…Greenland, Antarctica, glaciers) is formed largely from precipitation, and this may be triggered by PBAP in some situations (Sands et al, 1982;Christner et al, 2008b;Po¨schl et al, 2010). Bacteria have been discovered in ice cores from Antarctica at depths up to 3519 m (Raymond et al, 2008), giving possible evidence to the idea that these organisms have been introduced through precipitation. Thus, surface snow under windblown conditions could be a powerful source for PBAP via resuspension (Pomeroy and Jones, 1996).…”

Section: Definition and Sources Of Primary Biological Aerosol Particlesmentioning

confidence: 99%

Primary biological aerosol particles in the atmosphere: a review

Després¹,

Huffman

Burrows³

et al. 2012

Tellus B: Chemical and Physical Meteorology

1,173

1,114

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A B S T R A C T Atmospheric aerosol particles of biological origin are a very diverse group of biological materials and structures, including microorganisms, dispersal units, fragments and excretions of biological organisms. In recent years, the impact of biological aerosol particles on atmospheric processes has been studied with increasing intensity, and a wealth of new information and insights has been gained. This review outlines the current knowledge on major categories of primary biological aerosol particles (PBAP): bacteria and archaea, fungal spores and fragments, pollen, viruses, algae and cyanobacteria, biological crusts and lichens and others like plant or animal fragments and detritus. We give an overview of sampling methods and physical, chemical and biological techniques for PBAP analysis (cultivation, microscopy, DNA/RNA analysis, chemical tracers, optical and mass spectrometry, etc.). Moreover, we address and summarise the current understanding and open questions concerning the influence of PBAP on the atmosphere and climate, i.e. their optical properties and their ability to act as ice nuclei (IN) or cloud condensation nuclei (CCN). We suggest that the following research activities should be pursued in future studies of atmospheric biological aerosol particles: (1) develop efficient and reliable analytical techniques for the identification and quantification of PBAP; (2) apply advanced and standardised techniques to determine the abundance and diversity of PBAP and their seasonal variation at regional and global scales (atmospheric biogeography); (3) determine the emission rates, optical properties, IN and CCN activity of PBAP in field measurements and laboratory experiments; (4) use field and laboratory data to constrain numerical models of atmospheric transport, transformation and climate effects of PBAP.

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Section: Definition and Sources Of Primary Biological Aerosol Particlesmentioning

confidence: 99%

Primary biological aerosol particles in the atmosphere: a review

Després¹,

Huffman

Burrows³

et al. 2012

Tellus B: Chemical and Physical Meteorology

1,173

1,114

View full text Add to dashboard Cite

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“…Although their work came up short after a long and exhaustive search, Scholander et al did show that the fish prevented freezing by using antifreeze that must be highly unusual. Therefore, the studies described in this publication set the stage for the insightful and innovative work of DeVries that in turn, lead us to today (Duman and Olsen, 1993;Zongchao and Davies, 2002;Griffith and Yaish, 2004;DeVries, 2005;Raymond et al, 2008;Duman et al, 2010) where the many varied antifreeze proteins that have been identified in numerous species of animals, plants, fungi, bacteria, etc., continue to be studied by multiple laboratories around the world.…”

Section: Classicsmentioning

confidence: 98%

An early classic study of freeze avoidance in marine fish

Duman

2014

Journal of Experimental Biology

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“…For example, a question of great interest is origin and fate of the Lake Vostok, stayed buried under thick ice shield in Antarctic for more than 500 000 years [1;2]. In recent years, psychrophilic microflora from Vostok and other sub-glacial lakes in Antarctica have been the focus of increasing attention from both basic science and biotechnology perspectives, but the main obstacle for such lake's exploration is the danger of their contamination during sampling process [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of an In-Situ Microbial Decontamination of an Ice-Melting Probe

Leimena

Artmann²,

Dachwald³

et al. 2010

Eur Chem Tech J

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Autonomous robotic systems for penetrating thick ice shells with simultaneous collecting of scientific data are very promising devices in both terrestrial (glacier, climate research) and extra-terrestrial applications. Technical challenges in development of such systems are numerous and include 3D-navigation, an appropriate energy source, motion control, etc. Not less important is the problem of forward contamination of the pristine glacial environments with microorganisms and biomolecules from the surface of the probe.This study was devoted to establishing a laboratory model for microbial contamination of a newlyconstructed ice-melting probe called IceMole and to analyse the viability and amount of the contaminating microorganisms as a function of distance. The used bacterial strains were Bacillus subtilis (ATCC 6051) and Escherichia coli (ATCC 11775). The main objective was development of an efficient and reliable in-situ decontamination method of the melting probe. Therefore, several chemical substances were tested in respect of their efficacy to eliminate bacteria on the surface of the melting probe at low temperature (0 -5°C) and at continuous dilution by melted water.Our study has shown that at least 99.9% decontamination of the IceMole can be successfully achieved by the injection of 30% (v/v) hydrogen peroxide and 3% (v/v) sodium hypochlorite into the drilling site. We were able to reproduce this result in both time-dependent and depth-dependent experiments. The sufficient amount of 30% (v/v) H 2 O 2 or 3% (v/v) NaClO has been found to be approximately 18 ȝL per cm² of the probe's surface.

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A bacterial ice-binding protein from the Vostok ice core

Cited by 102 publications

References 24 publications

Primary biological aerosol particles in the atmosphere: a review

Primary biological aerosol particles in the atmosphere: a review

An early classic study of freeze avoidance in marine fish

Feasibility of an In-Situ Microbial Decontamination of an Ice-Melting Probe

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