<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jill A. Mikucki</style></author><author><style face="normal" font="default" size="100%">Pearson, A</style></author><author><style face="normal" font="default" size="100%">Johnston, D</style></author><author><style face="normal" font="default" size="100%">Turchyn, A</style></author><author><style face="normal" font="default" size="100%">Farquhar, J</style></author><author><style face="normal" font="default" size="100%">Schrag, D</style></author><author><style face="normal" font="default" size="100%">Anbar, A</style></author><author><style face="normal" font="default" size="100%">John C. Priscu</style></author><author><style face="normal" font="default" size="100%">Lee, P</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A Contemporary Microbially Maintained Subglacial Ferrous &quot;Ocean&quot;</style></title><secondary-title><style face="normal" font="default" size="100%">Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biggie</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">04/2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencemag.org/content/324/5925/397.short</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">324</style></volume><pages><style face="normal" font="default" size="100%">397-400</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;span style=&quot;color: rgb(51, 51, 51); font-family: 'Lucida Grande', arial, helvetica, sans-serif; font-size: 12px; font-weight: bold; line-height: 18px; background-color: rgb(238, 238, 238);&quot;&gt;An active microbial assemblage cycles sulfur in a sulfate-rich, ancient marine brine beneath Taylor Glacier, an outlet glacier of the East Antarctic Ice Sheet, with Fe(III) serving as the terminal electron acceptor. Isotopic measurements of sulfate, water, carbonate, and ferrous iron and functional gene analyses of adenosine 5&amp;prime;-phosphosulfate reductase imply that a microbial consortium facilitates a catalytic sulfur cycle. These metabolic pathways result from a limited organic carbon supply because of the absence of contemporary photosynthesis, yielding a subglacial ferrous brine that is anoxic but not sulfidic. Coupled biogeochemical processes below the glacier enable subglacial microbes to grow in extended isolation, demonstrating how analogous organic-starved systems, such as Neoproterozoic oceans, accumulated Fe(II) despite the presence of an active sulfur cycle.&lt;/span&gt;&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">5925</style></issue><work-type><style face="normal" font="default" size="100%">Journal</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lee, P</style></author><author><style face="normal" font="default" size="100%">John C. Priscu</style></author><author><style face="normal" font="default" size="100%">G R DiTullio</style></author><author><style face="normal" font="default" size="100%">Riseman, S</style></author><author><style face="normal" font="default" size="100%">Tursich, N</style></author><author><style face="normal" font="default" size="100%">DeMora, S</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Elevated levels of dimethylated-sulfur compounds in Lake Bonney, a poorly ventilated Antarctic lake</style></title><secondary-title><style face="normal" font="default" size="100%">Limnology and Oceanography</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2004</style></year></dates><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">1044-1055</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER63372</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lee, P</style></author><author><style face="normal" font="default" size="100%">Jill A. Mikucki</style></author><author><style face="normal" font="default" size="100%">Christine M. Foreman</style></author><author><style face="normal" font="default" size="100%">John C. Priscu</style></author><author><style face="normal" font="default" size="100%">G R DiTullio</style></author><author><style face="normal" font="default" size="100%">Riseman, S</style></author><author><style face="normal" font="default" size="100%">DeMora, S</style></author><author><style face="normal" font="default" size="100%">Craig F.  Wolf</style></author><author><style face="normal" font="default" size="100%">Kester, L</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Thermodynamic constraints on microbially mediated processes in lakes of the McMurdo Dry Valleys, Antarctica</style></title><secondary-title><style face="normal" font="default" size="100%">Geomicrobiology Journal</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2004</style></year></dates><volume><style face="normal" font="default" size="100%">21</style></volume><pages><style face="normal" font="default" size="100%">1-17</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record></records></xml>