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Bowman, JS, Deming JW.  2016.  Wind-driven distribution of bacteria in coastal Antarctica: Evidence from the Ross Sea region. Polar Biology. 40(1):25-35.: Springer Berlin Heidelberg   10.1007/s00300-016-1921-2   AbstractWebsite


Bowman, JS, Amaral-Zettler L, Rich J, Luria C, Ducklow H.  2016.  Bacterial community segmentation facilitates the prediction of ecosystem function along the western Antarctic Peninsula. Isme J. :1–12.: Nature Publishing Group   10.1038/ismej.2016.204   Website
Bowman, JS, Vick-Majors TJ, Morgan-Kiss RM, Takacs-Vesbach C, Ducklow HW, PRISCU JC.  2016.  Microbial Community Dynamics in Two Polar Extremes: The Lakes of the McMurdo Dry Valleys and the West Antarctic Peninsula Marine Ecosystem. BioScience. 66:830–847. Abstract


Bowman, JS, Berthiaume CT, Armbrust EV, Deming JW.  2014.  The genetic potential for key biogeochemical processes in Arctic frost flowers and young sea ice revealed by metagenomic analysis. FEMS microbiology ecology. 89:376–387.   10.1111/1574-6941.12331   AbstractWebsite

Newly formed sea ice is a vast and biogeochemically active environment. Recently we reported an unusual microbial community dominated by members of the Rhizobiales in frost flowers at the surface of Arctic young sea ice based on the presence of 16S gene sequences related to these strains. Here we use metagenomic analysis of two samples, from a field of frost flowers and the underlying young sea ice, to explore the metabolic potential of this surface ice community. The analysis links genes for key biogeochemical processes to the Rhizobiales, including dimethylsulfide uptake, betaine glycine turnover, and halocarbon production. Nodulation and nitrogen fixation genes characteristic of terrestrial root-nodulating Rhizobiales were generally lacking from these metagenomes. Non-Rhizobiales clades at the ice surface had genes that would enable additional biogeochemical processes, including mercury reduction and dimethylsulfoniopropionate catabolism. Although the ultimate source of the observed microbial community is not known, considerations of the possible role of aeolian deposition or transport with particles entrained during ice formation favor a suspended particle source for this microbial community. This article is protected by copyright. All rights reserved.

Barber, DG, Ehn JK, Pucko M, Rysgaard S, Deming JW, Bowman JS, Papakyriakou T, Galley RJ, Søggard DH.  2014.  Frost flowers on young Arctic sea ice: The climatic, chemical, and microbial significance of an emerging ice type. Journal of Geophysical Research: Atmospheres. 119:11593–11612.   10.1002/2014JD021736.Received   Abstract


Stüeken, EE, Anderson RE, Bowman JS, Brazelton WJ, Colangelo-Lillis J, a Goldman D, Som SM, Baross JA.  2013.  Did life originate from a global chemical reactor? Geobiology. 11:101–26.   10.1111/gbi.12025   AbstractWebsite

Many decades of experimental and theoretical research on the origin of life have yielded important discoveries regarding the chemical and physical conditions under which organic compounds can be synthesized and polymerized. However, such conditions often seem mutually exclusive, because they are rarely encountered in a single environmental setting. As such, no convincing models explain how living cells formed from abiotic constituents. Here, we propose a new approach that considers the origin of life within the global context of the Hadean Earth. We review previous ideas and synthesize them in four central hypotheses: (i) Multiple microenvironments contributed to the building blocks of life, and these niches were not necessarily inhabitable by the first organisms; (ii) Mineral catalysts were the backbone of prebiotic reaction networks that led to modern metabolism; (iii) Multiple local and global transport processes were essential for linking reactions occurring in separate locations; (iv) Global diversity and local selection of reactants and products provided mechanisms for the generation of most of the diverse building blocks necessary for life. We conclude that no single environmental setting can offer enough chemical and physical diversity for life to originate. Instead, any plausible model for the origin of life must acknowledge the geological complexity and diversity of the Hadean Earth. Future research may therefore benefit from identifying further linkages between organic precursors, minerals, and fluids in various environmental contexts.

Bowman, JS, Rasmussen S, Blom N, Deming JW, Rysgaard S, Sicheritz-Ponten T.  2012.  Microbial community structure of Arctic multiyear sea ice and surface seawater by 454 sequencing of the 16S RNA gene. ISME J. 6:11–20.   10.1038/ismej.2011.76   Abstract


Bowman, JS, Sachs JP.  2008.  Chemical and physical properties of some saline lakes in Alberta and Saskatchewan. Saline systems. 4:3.   10.1186/1746-1448-4-3   AbstractWebsite

The Northern Great Plains of Canada are home to numerous permanent and ephemeral athalassohaline lakes. These lakes display a wide range of ion compositions, salinities, stratification patterns, and ecosystems. Many of these lakes are ecologically and economically significant to the Great Plains Region. A survey of the physical characteristics and chemistry of 19 lakes was carried out to assess their suitability for testing new tools for determining past salinity from the sediment record.