Johanna Laybourn-ParrySummaryAffiliation: Keele University Country: UK Publications
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Publications
The biodiversity and ecology of Antarctic lakes: models for evolutionJohanna Laybourn-Parry
Institute for the Environment, Physical Sciences and Applied Mathematics, Faculty of Natural Sciences, University of Keele, Keele, Staffordshire, UK
Philos Trans R Soc Lond B Biol Sci 362:2273-89. 2007..Recent work on viruses in polar lakes demonstrates high abundance and high rates of infection, implying that they may play an important role in genetic exchange in these extreme environments...- Survival mechanisms in Antarctic lakesJohanna Laybourn-Parry
School of Life and Environmental Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
Philos Trans R Soc Lond B Biol Sci 357:863-9. 2002.... 
Influence of environmental conditions, bacterial activity and viability on the viral component in 10 Antarctic lakesChristin Säwström
Department of Ecology and Environmental Science, Climate Impacts Research Centre CIRC, Umea University, Abisko, Sweden
FEMS Microbiol Ecol 63:12-22. 2008..Thus, it was suggested that viral abundance in the Antarctic lakes was determined by the trophic status of the lake and the resultant abundance of intact bacterial hosts...- High viral infection rates in Antarctic and Arctic bacterioplanktonChristin Säwström
Climate Impacts Research Centre CIRC, Department of Ecology and Environmental Science, Umea University, SE 901 87 Umea, Sweden
Environ Microbiol 9:250-5. 2007..Our results suggest that a constant virioplankton population can be maintained in these extreme environments even though host density is low and often slow growing... - Seasonal viral loop dynamics in two large ultraoligotrophic Antarctic freshwater lakesChristin Säwström
Climate Impacts Research Centre CIRC, Department of Ecology and Environmental Science, Umea University, SE 901 87, Umea, Sweden
Microb Ecol 53:1-11. 2007..Our study shows that viral process in ultraoligotrophic Antarctic lakes may be of quantitative significance with respect to carbon flow especially during the dark winter period... - Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakesArnaud Taton
Laboratoire d'Algologie, , Institut de Botanique B22, , , Belgium
FEMS Microbiol Ecol 57:272-89. 2006..Comparison with database sequences illustrated the ubiquity of several cyanobacterial operational taxonomic units and their remarkable range of tolerance to harsh environmental conditions... - Influence of humic substances on bacterial and viral dynamics in freshwatersAlexandre M Anesio
School of Biosciences, The University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
Appl Environ Microbiol 70:4848-54. 2004..Results from this study suggest that the way viruses control bacterial assemblages in humic lakes is different from the mechanism in clear water systems... - Demonstration of antifreeze protein activity in Antarctic lake bacteriaJack A Gilbert
Division of Food Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD, UK
Microbiology 150:171-80. 2004..It will be of interest, therefore, to elucidate the evolutionary forces that have led to the acquisition of functional AFP activity in microbes of the Vestfold Hills lakes and to discover the role the antifreezes play in these organisms... - Ultrasonic imaging of biofilms utilizing echoes from the biofilm/air interfaceAndrew K Holmes
School of Electrical and Electronic Engineering, University of Nottingham, Nottingham NG7 2RD, UK
IEEE Trans Ultrason Ferroelectr Freq Control 53:185-92. 2006..Using these techniques, the surface topography of biofilms with thickness less than the acoustic wavelength can be imaged... - A hyperactive, Ca2+-dependent antifreeze protein in an Antarctic bacteriumJack A Gilbert
Department of Biochemistry and the Protein Engineering Network of Centres of Excellence, Queen's University, Kingston, Ont, Canada K7L 3N6
FEMS Microbiol Lett 245:67-72. 2005..This AFP might be capable of imparting freezing avoidance to M. primoryensis in ice-covered Antarctic lakes. A hyperactive bacterial AFP has not previously been reported... - Factors influencing bacterial dynamics along a transect from supraglacial runoff to proglacial lakes of a high Arctic glacier [corrected]Birgit Mindl
Institute of Ecology, University of Innsbruck, Innsbruck, Austria
FEMS Microbiol Ecol 59:307-17. 2007..Thus, as in maritime temperate and Antarctic settings, bacterial communities developing in the recently deglaciated terrain of Svalbard receive important inputs of nutrients via faunal transfers from adjacent ecosystems... 
Bacteriophage in polar inland watersChristin Säwström
Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umea University, 981 07 Abisko, Sweden
Extremophiles 12:167-75. 2008..We assess the relevance of bacteriophages in the microbial loop in the extreme environments of Antarctic and Arctic inland waters with an emphasis on carbon cycling...