<?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%">Zoumplis, Angela</style></author><author><style face="normal" font="default" size="100%">Kolody, Bethany C.</style></author><author><style face="normal" font="default" size="100%">Kaul, Drishti</style></author><author><style face="normal" font="default" size="100%">Zheng, Hong</style></author><author><style face="normal" font="default" size="100%">Venepally, Pratap</style></author><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author><author><style face="normal" font="default" size="100%">Cristina D. Takacs-Vesbach</style></author><author><style face="normal" font="default" size="100%">DeVries, Arthur L.</style></author><author><style face="normal" font="default" size="100%">Allen, Andrew E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Impact of meltwater flow intensity on the spatiotemporal heterogeneity of microbial mats in the McMurdo Dry Valleys, Antarctica</style></title><secondary-title><style face="normal" font="default" size="100%">ISME Communications</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2023</style></year><pub-dates><date><style  face="normal" font="default" size="100%">01/2023</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.nature.com/articles/s43705-022-00202-8</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">3</style></volume><pages><style face="normal" font="default" size="100%">3</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The meltwater streams of the McMurdo Dry Valleys are hot spots of biological diversity in the climate-sensitive polar desert landscape. Microbial mats, largely comprised of cyanobacteria, dominate the streams which flow for a brief window of time (~10 weeks) over the austral summer. These communities, critical to nutrient and carbon cycling, display previously uncharacterized patterns of rapid destabilization and recovery upon exposure to variable and physiologically detrimental conditions. Here, we characterize changes in biodiversity, transcriptional responses and activity of microbial mats in response to hydrological disturbance over spatiotemporal gradients. While diverse metabolic strategies persist between marginal mats and main channel mats, data collected from 4 time points during the austral summer revealed a homogenization of the mat communities during the mid-season peak meltwater flow, directly influencing the biogeochemical roles of this stream ecosystem. Gene expression pattern analyses identified strong functional sensitivities of nitrogen-fixing marginal mats to changes in hydrological activities. Stress response markers detailed the environmental challenges of each microhabitat and the molecular mechanisms underpinning survival in a polar desert ecosystem at the forefront of climate change. At mid and end points in the flow cycle, mobile genetic elements were upregulated across all mat types indicating high degrees of genome evolvability and transcriptional synchronies. Additionally, we identified novel antifreeze activity in the stream microbial mats indicating the presence of ice-binding proteins (IBPs). Cumulatively, these data provide a new view of active intra-stream diversity, biotic interactions and alterations in ecosystem function over a high-flow hydrological regime.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></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%">Bishop, Jordan</style></author><author><style face="normal" font="default" size="100%">Kopalová, Kateřina</style></author><author><style face="normal" font="default" size="100%">Darling, Joshua P.</style></author><author><style face="normal" font="default" size="100%">Schulte, Nicholas O.</style></author><author><style face="normal" font="default" size="100%">Tyler J. Kohler</style></author><author><style face="normal" font="default" size="100%">McMinn, Andrew</style></author><author><style face="normal" font="default" size="100%">Sarah A. Spaulding</style></author><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author><author><style face="normal" font="default" size="100%">Bart Van de Vijver</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">&lt;i&gt;Sabbea gen. nov.&lt;/i&gt;, a new diatom genus (Bacillariophyta) from continental Antarctica</style></title><secondary-title><style face="normal" font="default" size="100%">Phytotaxa</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Bacillariophyta</style></keyword><keyword><style  face="normal" font="default" size="100%">Cape Royds</style></keyword><keyword><style  face="normal" font="default" size="100%">East Antarctica</style></keyword><keyword><style  face="normal" font="default" size="100%">McMurdo Dry Valleys</style></keyword><keyword><style  face="normal" font="default" size="100%">new genus</style></keyword><keyword><style  face="normal" font="default" size="100%">Vestfold Hills</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">09/2019</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.mapress.com/j/pt/article/view/phytotaxa.418.1.2</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">418</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The non-marine diatom flora of the Antarctic Continent includes several endemic taxa recorded over the past 100 years. One of these taxa, &lt;em&gt;Navicula adminensis&lt;/em&gt; D.Roberts &amp;amp; McMinn, was described from the Vestfold Hills, East Antarctica. Detailed light and scanning electron microscopy observations have shown that based on its morphological features, the species does not belong to the genus &lt;em&gt;Navicula sensu stricto&lt;/em&gt;. To determine the most closely related genera to &lt;em&gt;N. adminensis&lt;/em&gt;, the morpho- logical features of &lt;em&gt;Adlafia&lt;/em&gt;, &lt;em&gt;Kobayasiella&lt;/em&gt;, &lt;em&gt;Envekadea&lt;/em&gt;, &lt;em&gt;Stenoneis&lt;/em&gt;, &lt;em&gt;Berkeleya&lt;/em&gt;, &lt;em&gt;Climaconeis&lt;/em&gt;, and &lt;em&gt;Parlibellus&lt;/em&gt; were compared with those of &lt;em&gt;N. adminensis&lt;/em&gt;. Although each of these genera shows one or more similar features, none of them accommodates the salient morphological characteristics of N. adminensis. Therefore, a new genus, &lt;em&gt;Sabbea gen. nov.&lt;/em&gt;, is herein described, and &lt;em&gt;Navicula adminensis&lt;/em&gt; is formally transferred to the new genus as &lt;em&gt;Sabbea adminensis comb. nov.&lt;/em&gt; The genus &lt;em&gt;Sabbea&lt;/em&gt; is characterized by uniseriate striae composed of small, rounded areolae occluded externally by individual hymenes, a rather simple raphe structure with straight, short proximal ends and short terminal raphe fissures, open girdle bands with double perforation and a very shallow mantle.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></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%">Cozzetto, K</style></author><author><style face="normal" font="default" size="100%">Kenneth E. Bencala</style></author><author><style face="normal" font="default" size="100%">Michael N. Gooseff</style></author><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The influence of stream thermal regimes and preferential flow paths on hyporheic exchange in a glacial meltwater stream</style></title><secondary-title><style face="normal" font="default" size="100%">Water Resources Research</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">09/2013</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://onlinelibrary.wiley.com/doi/10.1002/wrcr.20410/pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">5552 - 5569</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">9</style></issue></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%">Rhea M.M. Esposito</style></author><author><style face="normal" font="default" size="100%">Sarah A. Spaulding</style></author><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author><author><style face="normal" font="default" size="100%">De Vijver, B</style></author><author><style face="normal" font="default" size="100%">Kopalova, K</style></author><author><style face="normal" font="default" size="100%">Lubinski, D</style></author><author><style face="normal" font="default" size="100%">Brenda L. Hall</style></author><author><style face="normal" font="default" size="100%">Whittaker, T</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica</style></title><secondary-title><style face="normal" font="default" size="100%">Botany-Botanique</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">1378-1392</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></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%">Diane M. McKnight</style></author><author><style face="normal" font="default" size="100%">Robert L. Runkel</style></author><author><style face="normal" font="default" size="100%">John H. Duff</style></author><author><style face="normal" font="default" size="100%">Cathy M. Tate</style></author><author><style face="normal" font="default" size="100%">Daryl L. Moorhead</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Inorganic nitrogen and phosphorus dynamics of Antarctic glacial meltwater streams as controlled by hyporheic exchange and benthic autotrophic communities</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the North American Benthological Society</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%">23</style></volume><pages><style face="normal" font="default" size="100%">171-188</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER63374</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Van Matre, E</style></author></authors><tertiary-authors><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author></tertiary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Interannual variation in phytoplankton dynamics in Lake Fryxell</style></title></titles><dates><year><style  face="normal" font="default" size="100%">2002</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Colorado</style></publisher><volume><style face="normal" font="default" size="100%">M.S.</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">masters</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Brown, A</style></author></authors><tertiary-authors><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author></tertiary-authors></contributors><titles><title><style face="normal" font="default" size="100%">The influence of mixotroph growth on DOM chemistry in Pony Lake, a eutrophic coastal pond in Antarctica</style></title></titles><dates><year><style  face="normal" font="default" size="100%">2001</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Colorado</style></publisher><volume><style face="normal" font="default" size="100%">M.S.</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">masters</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%">Harold R. House</style></author><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author><author><style face="normal" font="default" size="100%">Paul Von Guerard</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The influence of stream channel characteristics on streamflow and annual water budgets for lakes in Taylor Valley</style></title><secondary-title><style face="normal" font="default" size="100%">Antarctic Journal of the U.S.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1995</style></year></dates><volume><style face="normal" font="default" size="100%">30</style></volume><pages><style face="normal" font="default" size="100%">284-287</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">5</style></issue><accession-num><style face="normal" font="default" size="100%">LTER12856</style></accession-num></record></records></xml>