TY - JOUR A1 - van Kleunen, Mark A1 - Essl, Franz A1 - Pergl, Jan A1 - Brundu, Giuseppe A1 - Carboni, Marta A1 - Dullinger, Stefan A1 - Early, Regan A1 - Gonzalez-Moreno, Pablo A1 - Groom, Quentin J. M. A1 - Hulme, Philip E. A1 - Kueffer, Christoph A1 - Kühn, Ingolf A1 - Maguas, Cristina A1 - Maurel, Noelie A1 - Novoa, Ana A1 - Parepa, Madalin A1 - Pysek, Petr A1 - Seebens, Hanno A1 - Tanner, Rob A1 - Touza, Julia A1 - Verbrugge, Laura A1 - Weber, Ewald A1 - Dawson, Wayne A1 - Kreft, Holger A1 - Weigelt, Patrick A1 - Winter, Marten A1 - Klonner, Guenther A1 - Talluto, Matthew V. A1 - Dehnen-Schmutz, Katharina T1 - The changing role of ornamental horticulture in alien plant invasions JF - Biological reviews N2 - The number of alien plants escaping from cultivation into native ecosystems is increasing steadily. We provide an overview of the historical, contemporary and potential future roles of ornamental horticulture in plant invasions. We show that currently at least 75% and 93% of the global naturalised alien flora is grown in domestic and botanical gardens, respectively. Species grown in gardens also have a larger naturalised range than those that are not. After the Middle Ages, particularly in the 18th and 19th centuries, a global trade network in plants emerged. Since then, cultivated alien species also started to appear in the wild more frequently than non-cultivated aliens globally, particularly during the 19th century. Horticulture still plays a prominent role in current plant introduction, and the monetary value of live-plant imports in different parts of the world is steadily increasing. Historically, botanical gardens - an important component of horticulture - played a major role in displaying, cultivating and distributing new plant discoveries. While the role of botanical gardens in the horticultural supply chain has declined, they are still a significant link, with one-third of institutions involved in retail-plant sales and horticultural research. However, botanical gardens have also become more dependent on commercial nurseries as plant sources, particularly in North America. Plants selected for ornamental purposes are not a random selection of the global flora, and some of the plant characteristics promoted through horticulture, such as fast growth, also promote invasion. Efforts to breed non-invasive plant cultivars are still rare. Socio-economical, technological, and environmental changes will lead to novel patterns of plant introductions and invasion opportunities for the species that are already cultivated. We describe the role that horticulture could play in mediating these changes. We identify current research challenges, and call for more research efforts on the past and current role of horticulture in plant invasions. This is required to develop science-based regulatory frameworks to prevent further plant invasions. KW - botanical gardens KW - climate change KW - horticulture KW - naturalised plants KW - ornamental plants KW - pathways KW - plant invasions KW - plant nurseries KW - trade KW - weeds Y1 - 2018 U6 - https://doi.org/10.1111/brv.12402 SN - 1464-7931 SN - 1469-185X VL - 93 IS - 3 SP - 1421 EP - 1437 PB - Wiley CY - Hoboken ER - TY - JOUR A1 - Essl, Franz A1 - Dawson, Wayne A1 - Kreft, Holger A1 - Pergl, Jan A1 - Pysek, Petr A1 - van Kleunen, Mark A1 - Weigelt, Patrick A1 - Mang, Thomas A1 - Dullinger, Stefan A1 - Lenzner, Bernd A1 - Moser, Dietmar A1 - Maurel, Noelie A1 - Seebens, Hanno A1 - Stein, Anke A1 - Weber, Ewald A1 - Chatelain, Cyrille A1 - Inderjit, A1 - Genovesi, Piero A1 - Kartesz, John A1 - Morozova, Olga A1 - Nishino, Misako A1 - Nowak, Pauline M. A1 - Pagad, Shyama A1 - Shu, Wen-sheng A1 - Winter, Marten T1 - Drivers of the relative richness of naturalized and invasive plant species on Earth JF - AoB PLANTS N2 - Biological invasions are a defining feature of the Anthropocene, but the factors that determine the spatially uneven distribution of alien plant species are still poorly understood. Here, we present the first global analysis of the effects of biogeographic factors, the physical environment and socio-economy on the richness of naturalized and invasive alien plants. We used generalized linear mixed-effects models and variation partitioning to disentangle the relative importance of individual factors, and, more broadly, of biogeography, physical environment and socio-economy. As measures of the magnitude of permanent anthropogenic additions to the regional species pool and of species with negative environmental impacts, we calculated the relative richness of naturalized (= RRN) and invasive (= RRI) alien plant species numbers adjusted for the number of native species in 838 terrestrial regions. Socio-economic factors (per-capita gross domestic product (GDP), population density, proportion of agricultural land) were more important in explaining RRI (similar to 50 % of the explained variation) than RRN (similar to 40 %). Warm-temperate and (sub)tropical regions have higher RRN than tropical or cooler regions. We found that socio-economic pressures are more relevant for invasive than for naturalized species richness. The expectation that the southern hemisphere is more invaded than the northern hemisphere was confirmed only for RRN on islands, but not for mainland regions nor for RRI. On average, islands have similar to 6-fold RRN, and >3-fold RRI compared to mainland regions. Eighty-two islands (=26 % of all islands) harbour more naturalized alien than native plants. Our findings challenge the widely held expectation that socio-economic pressures are more relevant for plant naturalization than for invasive plants. To meet international biodiversity targets and halt the detrimental consequences of plant invasions, it is essential to disrupt the connection between socio-economic development and plant invasions by improving pathway management, early detection and rapid response. KW - Alien species richness KW - biogeography KW - invasion stages KW - islands KW - pressures KW - vascular plants Y1 - 2019 U6 - https://doi.org/10.1093/aobpla/plz051 SN - 2041-2851 VL - 11 IS - 5 PB - Oxford Univ. Press CY - Oxford ER - TY - JOUR A1 - Figer, Donald F. A1 - Najarro, F. A1 - Moris, Mark A1 - Mclean, Ian S. A1 - Geballe, T. R. A1 - Ghez, A. M. A1 - Langer, Norbert T1 - The Pistol star Y1 - 1998 ER - TY - JOUR A1 - Garcia-Segura, Guillermo A1 - Langer, Norbert A1 - Rozyczka, M. A1 - MacLow, Mordecai-Mark T1 - The effects of rotation and stellar magnetic fields on the nebular shapes : LBV nebulae and PNe Y1 - 1998 ER - TY - JOUR A1 - Deplazes, Gaudenz A1 - Lueckge, Andreas A1 - Peterson, Larry C. A1 - Timmermann, Axel A1 - Hamann, Yvonne A1 - Hughen, Konrad A. A1 - Roehl, Ursula A1 - Laj, Carlo A1 - Cane, Mark A. A1 - Sigman, Daniel M. A1 - Haug, Gerald H. T1 - Links between tropical rainfall and North Atlantic climate during the last glacial period JF - Nature geoscience N2 - During the last glacial period, the North Atlantic region experienced pronounced, millennial-scale alternations between cold, stadial conditions and milder interstadial conditions-commonly referred to as Dansgaard-Oeschger oscillations-as well as periods of massive iceberg discharge known as Heinrich events(1). Changes in Northern Hemisphere temperature, as recorded in Greenland(2-4), are thought to have affected the location of the Atlantic intertropical convergence zone(5,6) and the strength of the Indian summer monsoon(7,8). Here we use high-resolution records of sediment colour-a measure of terrigenous versus biogenic content-from the Cariaco Basin off the coast of Venezuela and the Arabian Sea to assess teleconnections with the North Atlantic climate system during the last glacial period. The Cariaco record indicates that the intertropical convergence zone migrated seasonally over the site during mild stadial conditions, but was permanently displaced south of the basin during peak stadials and Heinrich events. In the Arabian Sea, we find evidence of a weak Indian summer monsoon during the stadial events. The tropical records show a more variable response to North Atlantic cooling than the Greenland temperature records. We therefore suggest that Greenland climate is especially sensitive to variations in the North Atlantic system-in particular sea-ice extent-whereas the intertropical convergence zone and Indian monsoon system respond primarily to variations in mean Northern Hemisphere temperature. Y1 - 2013 U6 - https://doi.org/10.1038/ngeo1712 SN - 1752-0894 VL - 6 IS - 3 SP - 213 EP - 217 PB - Nature Publ. Group CY - New York ER - TY - JOUR A1 - Cuzzi, Jeff N. A1 - Burns, Joseph A. A1 - Charnoz, Sébastien A1 - Clark, Roger N. A1 - Colwell, Josh E. A1 - Dones, Luke A1 - Esposito, Larry W. A1 - Filacchione, Gianrico A1 - French, Richard G. A1 - Hedman, Matthew M. A1 - Kempf, Sascha A1 - Marouf, Essam A. A1 - Murray, Carl D. A1 - Nicholson, Phillip D. A1 - Porco, Carolyn C. A1 - Schmidt, Jürgen A1 - Showalter, Mark R. A1 - Spilker, Linda J. A1 - Spitale, Joseph N. A1 - Srama, Ralf A1 - Sremcević, Miodrag A1 - Tiscareno, Matthew Steven A1 - Weiss, John T1 - An evolving view of Saturn's dynamic rings N2 - We review our understanding of Saturn's rings after nearly 6 years of observations by the Cassini spacecraft. Saturn's rings are composed mostly of water ice but also contain an undetermined reddish contaminant. The rings exhibit a range of structure across many spatial scales; some of this involves the interplay of the fluid nature and the self-gravity of innumerable orbiting centimeter- to meter-sized particles, and the effects of several peripheral and embedded moonlets, but much remains unexplained. A few aspects of ring structure change on time scales as short as days. It remains unclear whether the vigorous evolutionary processes to which the rings are subject imply a much younger age than that of the solar system. Processes on view at Saturn have parallels in circumstellar disks. Y1 - 2010 UR - http://www.sciencemag.org/ U6 - https://doi.org/10.1126/science.1179118 SN - 0036-8075 ER - TY - JOUR A1 - Scharf, Anke A1 - Handy, Mark R. A1 - Ziemann, Martin Andreas A1 - Schmid, Stefan M. T1 - Peak-temperature patterns of polyphase metamorphism resulting from accretion, subduction and collision (eastern Tauern Window, European Alps) - a study with Raman microspectroscopy on carbonaceous material (RSCM) JF - Journal of metamorphic geology N2 - Raman microspectroscopy on carbonaceous material (RSCM) from the eastern Tauern Window indicates contrasting peak-temperature patterns in three different fabric domains, each of which underwent a poly-metamorphic orogenic evolution: Domain 1 in the northeastern Tauern Window preserves oceanic units (Glockner Nappe System, Matrei Zone) that attained peak temperatures (T-p) of 350-480 degrees C following Late Cretaceous to Palaeogene nappe stacking in an accretionary wedge. Domain 2 in the central Tauern Window experienced T-p of 500-535 degrees C that was attained either within an exhumed Palaeogene subduction channel or during Oligocene Barrovian-type thermal overprinting within the Alpine collisional orogen. Domain 3 in the Eastern Tauern Subdome has a peak-temperature pattern that resulted from Eo-Oligocene nappe stacking of continental units derived from the distal European margin. This pattern acquired its presently concentric pattern in Miocene time due to post-nappe doming and extensional shearing along the Katschberg Shear Zone System (KSZS). T-p values in the largest (Hochalm) dome range from 612 degrees C in its core to 440 degrees C at its rim. The maximum peak-temperature gradient (70 degrees Ckm(-1)) occurs along the eastern margin of this dome where mylonitic shearing of the Katschberg Normal Fault (KNF) significantly thinned the Subpenninic- and Penninic nappe pile, including the pre-existing peak-temperature gradient. KW - doming KW - Eastern Alps KW - high-pressure and Barrovian-type metamorphism KW - orogen-parallel extension KW - peak-temperature pattern KW - Raman microspectroscopy Y1 - 2013 U6 - https://doi.org/10.1111/jmg.12048 SN - 0263-4929 VL - 31 IS - 8 SP - 863 EP - 880 PB - Wiley-Blackwell CY - Hoboken ER - TY - JOUR A1 - Handy, Mark R. A1 - Schmid, Stefan M. A1 - Bousquet, Romain A1 - Kissling, Eduard A1 - Bernoulli, Daniel T1 - Reconciling plate-tectonic reconstructions of Alpine Tethys with the geological-geophysical record of spreading and subduction in the Alps N2 - A new reconstruction of Alpine Tethys combines plate-kinematic modelling with a wealth of geological data and seismic tomography to shed light on its evolution, from sea-floor spreading through subduction to collision in the Alps. Unlike previous models, which relate the fate of Alpine Tethys solely to relative motions of Africa, Iberia and Europe during opening of the Atlantic, our reconstruction additionally invokes independent microplates whose motions are constrained primarily by the geological record. The motions of these microplates (Adria, Iberia, Alcapia, Alkapecia, and Tiszia) relative to both Africa and Europe during Late Cretaceous to Cenozoic time involved the subduction of remnant Tethyan basins during the following three stages that are characterized by contrasting plate motions and driving forces: (1) 131-84 Ma intra-oceanic subduction of the Ligurian part of Alpine Tethys attached to Iberia coincided with Eo-alpine orogenesis in the Alcapia microplate, north of Africa. These events were triggered primarily by foundering of the older (170-131 Ma) Neotethyan subduction slab along the NE margin of the composite African-Adriatic plate; subduction was linked by a sinistral transform system to E-W opening of the Valais part of Alpine Tethys; (2) 84-35 Ma subduction of primarily the Piemont and Valais parts of Alpine Tethys which were then attached to the European plate beneath the overriding African and later Adriatic plates. NW translation of Adria with respect to Africa was accommodated primarily by slow widening of the Ionian Sea; (3) 35 Ma-Recent rollback subduction of the Ligurian part of Alpine Tethys coincided with Western Alpine orogenesis and involved the formation of the Gibraltar and Calabrian arcs. Rapid subduction and arc formation were driven primarily by the pull of the gravitationally unstable, retreating Adriatic and African slabs during slow convergence of Africa and Europe. The upper European-Iberian plate stretched to accommodate this slab retreat in a very mobile fashion, while the continental core of the Adriatic microplate acted as a rigid indenter within the Alpine collisional zone. The subducted lithosphere in this reconstruction can be correlated with slab material imaged by seismic tomography beneath the Alps and Apennines, as well as beneath parts of the Pannonian Basin, the Adriatic Sea, the Ligurian Sea, and the Western Mediterranean. The predicted amount of subducted lithosphere exceeds the estimated volume of slab material residing at depth by some 10-30%, indicating that parts of slabs may be superposed within the mantle transition zone and/or that some of this subducted lithosphere became seismically transparent. Y1 - 2010 UR - http://www.sciencedirect.com/science/journal/00128252 U6 - https://doi.org/10.1016/j.earscirev.2010.06.002 SN - 0012-8252 ER - TY - JOUR A1 - Szurlies, Michael A1 - Geluk, Mark C. A1 - Krijgsman, Wout A1 - Kurschner, Wolfram M. T1 - The continental Permian-Triassic boundary in the Netherlands implications for the geomagnetic polarity time scale JF - Earth & planetary science letters N2 - In Central and NW Europe, the transition from the Permian to the Triassic (i.e., the Zechstein-Buntsandstein boundary interval) is developed mainly in red bed facies. This continental sedimentary succession is marked by relatively high sedimentation rates providing a high temporal resolution favorable for magnetic polarity stratigraphy. Here, we present a Zechstein to Lower Buntsandstein magnetostratigraphy obtained from the c. 100 m thick Everdingen-1 core from the Netherlands. Seven magnetozones (EV1n to EV4n) and five submagnetozones (EV1n.1r to EV3r.1n) have been delineated. The Everdingen-1 magnetostratigraphy has been integrated into the well-established high-resolution Zechstein-Buntsandstein stratigraphic framework, and verifies the geomagnetic polarity record from Central Germany. This confirms the hypothesis of nearly synchronous base-level cycles within the interior of the Central European Basin. These cycles are related to solar-induced similar to 100 ka eccentricity cycles. The most distinctive feature of the Everdingen-1 magnetostratigraphy is a transition from a thin reverse to a thick dominantly normal magnetic polarity interval. This reversal predates both the terrestrial mass extinction, which is indicated by a palynofloral turnover and a major sediment provenance change at the base of the Buntsandstein, and the marine Permian-Triassic Boundary (PTB). The PTB is located within the lowermost Buntsandstein and is approximated by the last occurrence of the conchostracan Falsisca postera and a negative excursion in the carbon isotope record. According to the Buntsandstein cyclostratigraphy, the R/N reversal predates the marine end-Permian extinction event by about 0.1 Ma and the marine biostratigraphic PTB by about 0.2 Ma. The thick normal magnetozone is estimated to have lasted c. 700 ka, and roughly coincides with the main phase of Siberian Trap volcanism. KW - magnetostratigraphy KW - cyclic stratigraphy KW - wireline logs KW - Permian-Triassic boundary KW - Zechstein-Buntsandstein interval KW - The Netherlands Y1 - 2012 U6 - https://doi.org/10.1016/j.epsl.2011.11.043 SN - 0012-821X VL - 317 SP - 165 EP - 176 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - King, Turi E. A1 - Gonzalez-Fortes, Gloria M. A1 - Balaresque, Patricia A1 - Thomas, Mark G. A1 - Balding, David A1 - Delser, Pierpaolo Maisano A1 - Neumann, Rita A1 - Parson, Walther A1 - Knapp, Michael A1 - Walsh, Susan A1 - Tonasso, Laure A1 - Holt, John A1 - Kayser, Manfred A1 - Appleby, Jo A1 - Forster, Peter A1 - Ekserdjian, David A1 - Hofreiter, Michael A1 - Schuerer, Kevin T1 - Identification of the remains of King Richard III JF - Nature Communications Y1 - 2014 U6 - https://doi.org/10.1038/ncomms6631 SN - 2041-1723 VL - 5 PB - Nature Publ. Group CY - London ER - TY - CHAP A1 - Pfab, T. A1 - Sharkovska, Yukiya A1 - Alter, Markus L. A1 - von Websky, Karoline A1 - Mark, M. A1 - Klein, T. A1 - Hocher, Berthold T1 - Effect of linagliptin on infarction size and cardiac function in rats after myocardial ischaemia reperfusion T2 - Diabetologia : journal of the European Association for the Study of Diabetes (EASD) Y1 - 2011 SN - 0012-186X VL - 54 SP - S329 EP - S329 PB - Springer CY - New York ER - TY - JOUR A1 - Wolff, Christian Michael A1 - Haug, Gerald H. A1 - Timmermann, Axel A1 - Damste, Jaap S. Sinninghe A1 - Brauer, Achim A1 - Sigman, Daniel M. A1 - Cane, Mark A. A1 - Verschuren, Dirk T1 - Reduced interannual rainfall variability in East Africa during the last Ice Age JF - Science N2 - Interannual rainfall variations in equatorial East Africa are tightly linked to the El Nino Southern Oscillation (ENSO), with more rain and flooding during El Nino and droughts in La Nina years, both having severe impacts on human habitation and food security. Here we report evidence from an annually laminated lake sediment record from southeastern Kenya for interannual to centennial-scale changes in ENSO-related rainfall variability during the last three millennia and for reductions in both the mean rate and the variability of rainfall in East Africa during the Last Glacial period. Climate model simulations support forward extrapolation from these lake sediment data that future warming will intensify the interannual variability of East Africa's rainfall. Y1 - 2011 U6 - https://doi.org/10.1126/science.1203724 SN - 0036-8075 VL - 333 IS - 6043 SP - 743 EP - 747 PB - American Assoc. for the Advancement of Science CY - Washington ER - TY - JOUR A1 - Birkhofer, Klaus A1 - Schöning, Ingo A1 - Alt, Fabian A1 - Herold, Nadine A1 - Klarner, Bernhard A1 - Maraun, Mark A1 - Marhan, Sven A1 - Oelmann, Yvonne A1 - Wubet, Tesfaye A1 - Yurkov, Andrey A1 - Begerow, Dominik A1 - Berner, Doreen A1 - Buscot, Francois A1 - Daniel, Rolf A1 - Diekötter, Tim A1 - Ehnes, Roswitha B. A1 - Erdmann, Georgia A1 - Fischer, Christiane A1 - Fösel, Baerbel A1 - Groh, Janine A1 - Gutknecht, Jessica A1 - Kandeler, Ellen A1 - Lang, Christa A1 - Lohaus, Gertrud A1 - Meyer, Annabel A1 - Nacke, Heiko A1 - Näther, Astrid A1 - Overmann, Jörg A1 - Polle, Andrea A1 - Pollierer, Melanie M. A1 - Scheu, Stefan A1 - Schloter, Michael A1 - Schulze, Ernst-Detlef A1 - Schulze, Waltraud X. A1 - Weinert, Jan A1 - Weisser, Wolfgang W. A1 - Wolters, Volkmar A1 - Schrumpf, Marion T1 - General relationships between abiotic soil properties and soil biota across spatial scales and different land-use types JF - PLoS one N2 - Very few principles have been unraveled that explain the relationship between soil properties and soil biota across large spatial scales and different land-use types. Here, we seek these general relationships using data from 52 differently managed grassland and forest soils in three study regions spanning a latitudinal gradient in Germany. We hypothesize that, after extraction of variation that is explained by location and land-use type, soil properties still explain significant proportions of variation in the abundance and diversity of soil biota. If the relationships between predictors and soil organisms were analyzed individually for each predictor group, soil properties explained the highest amount of variation in soil biota abundance and diversity, followed by land-use type and sampling location. After extraction of variation that originated from location or land-use, abiotic soil properties explained significant amounts of variation in fungal, meso-and macrofauna, but not in yeast or bacterial biomass or diversity. Nitrate or nitrogen concentration and fungal biomass were positively related, but nitrate concentration was negatively related to the abundances of Collembola and mites and to the myriapod species richness across a range of forest and grassland soils. The species richness of earthworms was positively correlated with clay content of soils independent of sample location and land-use type. Our study indicates that after accounting for heterogeneity resulting from large scale differences among sampling locations and land-use types, soil properties still explain significant proportions of variation in fungal and soil fauna abundance or diversity. However, soil biota was also related to processes that act at larger spatial scales and bacteria or soil yeasts only showed weak relationships to soil properties. We therefore argue that more general relationships between soil properties and soil biota can only be derived from future studies that consider larger spatial scales and different land-use types. Y1 - 2012 U6 - https://doi.org/10.1371/journal.pone.0043292 SN - 1932-6203 VL - 7 IS - 8 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Garcia-Segura, Guillermo A1 - Langer, Norbert A1 - Rozyczka, M. A1 - Franco, J. A1 - MacLow, Mordecai-Mark T1 - Hydrodynamics of ring nebulae : magnetic vs. non-magnetic hydro-models Y1 - 1999 ER - TY - JOUR A1 - Banks, Jo Ann A1 - Nishiyama, Tomoaki A1 - Hasebe, Mitsuyasu A1 - Bowman, John L. A1 - Gribskov, Michael A1 - dePamphilis, Claude A1 - Albert, Victor A. A1 - Aono, Naoki A1 - Aoyama, Tsuyoshi A1 - Ambrose, Barbara A. A1 - Ashton, Neil W. A1 - Axtell, Michael J. A1 - Barker, Elizabeth A1 - Barker, Michael S. A1 - Bennetzen, Jeffrey L. A1 - Bonawitz, Nicholas D. A1 - Chapple, Clint A1 - Cheng, Chaoyang A1 - Correa, Luiz Gustavo Guedes A1 - Dacre, Michael A1 - DeBarry, Jeremy A1 - Dreyer, Ingo A1 - Elias, Marek A1 - Engstrom, Eric M. A1 - Estelle, Mark A1 - Feng, Liang A1 - Finet, Cedric A1 - Floyd, Sandra K. A1 - Frommer, Wolf B. A1 - Fujita, Tomomichi A1 - Gramzow, Lydia A1 - Gutensohn, Michael A1 - Harholt, Jesper A1 - Hattori, Mitsuru A1 - Heyl, Alexander A1 - Hirai, Tadayoshi A1 - Hiwatashi, Yuji A1 - Ishikawa, Masaki A1 - Iwata, Mineko A1 - Karol, Kenneth G. A1 - Koehler, Barbara A1 - Kolukisaoglu, Uener A1 - Kubo, Minoru A1 - Kurata, Tetsuya A1 - Lalonde, Sylvie A1 - Li, Kejie A1 - Li, Ying A1 - Litt, Amy A1 - Lyons, Eric A1 - Manning, Gerard A1 - Maruyama, Takeshi A1 - Michael, Todd P. A1 - Mikami, Koji A1 - Miyazaki, Saori A1 - Morinaga, Shin-ichi A1 - Murata, Takashi A1 - Müller-Röber, Bernd A1 - Nelson, David R. A1 - Obara, Mari A1 - Oguri, Yasuko A1 - Olmstead, Richard G. A1 - Onodera, Naoko A1 - Petersen, Bent Larsen A1 - Pils, Birgit A1 - Prigge, Michael A1 - Rensing, Stefan A. A1 - Mauricio Riano-Pachon, Diego A1 - Roberts, Alison W. A1 - Sato, Yoshikatsu A1 - Scheller, Henrik Vibe A1 - Schulz, Burkhard A1 - Schulz, Christian A1 - Shakirov, Eugene V. A1 - Shibagaki, Nakako A1 - Shinohara, Naoki A1 - Shippen, Dorothy E. A1 - Sorensen, Iben A1 - Sotooka, Ryo A1 - Sugimoto, Nagisa A1 - Sugita, Mamoru A1 - Sumikawa, Naomi A1 - Tanurdzic, Milos A1 - Theissen, Guenter A1 - Ulvskov, Peter A1 - Wakazuki, Sachiko A1 - Weng, Jing-Ke A1 - Willats, William W. G. T. A1 - Wipf, Daniel A1 - Wolf, Paul G. A1 - Yang, Lixing A1 - Zimmer, Andreas D. A1 - Zhu, Qihui A1 - Mitros, Therese A1 - Hellsten, Uffe A1 - Loque, Dominique A1 - Otillar, Robert A1 - Salamov, Asaf A1 - Schmutz, Jeremy A1 - Shapiro, Harris A1 - Lindquist, Erika A1 - Lucas, Susan A1 - Rokhsar, Daniel A1 - Grigoriev, Igor V. T1 - The selaginella genome identifies genetic changes associated with the evolution of vascular plants JF - Science N2 - Vascular plants appeared similar to 410 million years ago, then diverged into several lineages of which only two survive: the euphyllophytes (ferns and seed plants) and the lycophytes. We report here the genome sequence of the lycophyte Selaginella moellendorffii (Selaginella), the first nonseed vascular plant genome reported. By comparing gene content in evolutionarily diverse taxa, we found that the transition from a gametophyte- to a sporophyte-dominated life cycle required far fewer new genes than the transition from a nonseed vascular to a flowering plant, whereas secondary metabolic genes expanded extensively and in parallel in the lycophyte and angiosperm lineages. Selaginella differs in posttranscriptional gene regulation, including small RNA regulation of repetitive elements, an absence of the trans-acting small interfering RNA pathway, and extensive RNA editing of organellar genes. Y1 - 2011 U6 - https://doi.org/10.1126/science.1203810 SN - 0036-8075 VL - 332 IS - 6032 SP - 960 EP - 963 PB - American Assoc. for the Advancement of Science CY - Washington ER - TY - GEN A1 - Vink, Jorick Sandor A1 - Heger, Alexander A1 - Krumholz, Mark R. A1 - Puls, Joachim A1 - Banerjee, Shiladitya A1 - Castro, Norberto A1 - Chen, K.-J. A1 - Chenè, A.-N. A1 - Crowther, P. A. A1 - Daminelli, A. A1 - Gräfener, G. A1 - Groh, J. H. A1 - Hamann, Wolf-Rainer A1 - Heap, S. A1 - Herrero, A. A1 - Kaper, L. A1 - Najarro, F. A1 - Oskinova, Lida A1 - Roman-Lopes, A. A1 - Rosen, A. A1 - Sander, A. A1 - Shirazi, M. A1 - Sugawara, Y. A1 - Tramper, F. A1 - Vanbeveren, D. A1 - Voss, R. A1 - Wofford, A. A1 - Zhang, Y. T1 - Very massive stars in the local universe T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - Recent studies have claimed the existence of very massive stars (VMS) up to 300 M⊙ in the local Universe. As this finding may represent a paradigm shift for the canonical stellar upper-mass limit of 150 M⊙, it is timely to discuss the status of the data, as well as the far-reaching implications of such objects. We held a Joint Discussion at the General Assembly in Beijing to discuss (i) the determination of the current masses of the most massive stars, (ii) the formation of VMS, (iii) their mass loss, and (iv) their evolution and final fate. The prime aim was to reach broad consensus between observers and theorists on how to identify and quantify the dominant physical processes. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 601 KW - stars: massive stars KW - stars: mass-loss KW - stars: stellar evolution Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-415220 SN - 1866-8372 IS - 601 ER - TY - JOUR A1 - Scharf, Andreas A1 - Handy, Mark R. A1 - Schmid, Stefan M. A1 - Favaro, Silvia A1 - Sudo, Masafumi A1 - Schuster, Ralf A1 - Hammerschmidt, Konrad T1 - Grain-size effects on the closure temperature of white mica in a crustal-scale extensional shear - zone - Implications of in-situ Ar-40/Ar-39 laser-ablation of white mica for dating shearing and cooling (Tauern Window, Eastern Alps) JF - Tectonophysics : international journal of geotectonics and the geology and physics of the interior of the earth N2 - In-situ Ar-40/Ar-39 laser ablation dating of white-mica grains was performed on samples from the footwall of a crustal-scale extensional fault (Katschberg Normal Fault; KNF) that accommodated eastward orogen-parallel displacement of Alpine orogenic crust in the eastern part of the Tauern Window. This dating yields predominantly cooling ages ranging from 31 to 13 Myr, with most ages clustering between 21 and 17 Myr. Folded white micas that predate the main Katschberg foliation yield, within error, the same ages as white-mica grains that overgrow this foliation. However, the absolute ages of both generations are older at the base (20 Myr) where their grain size is larger (300-500 mu m), than at the top and adjacent to the hangingwall (17 Myr) of this shear zone where grain size is smaller (<100-300 mu m). This fining-upward trend of white-mica grain size within the KNF is associated with a reduction of the closure temperature from the base (similar to 445 degrees C) to the top (<400 degrees C) and explains the counter-intuitive trend of downward-increasing age of cooling in the footwall. The new data show that rapid cooling within the KNF of the eastern Tauern Window started sometime before 21 Myr according to the Ar-40/Ar-39 white-mica cooling ages and between 25-21 Myr according to the new Rb/Sr white-mica ages, i.e., shortly after the attainment of the thermal peak in the Tauern Window at similar to 25 Myr ago. These new data, combined with literature data, support earlier cooling in the eastern part of then Tauem Window than in the western part by some 3-5 Myr. (C) 2016 Elsevier B.V. All rights reserved. KW - Eastern Alps KW - Ar-40/Ar-39 laser ablation KW - Closure temperature KW - Orogen-parallel lateral extrusion KW - Rapid exhumation/cooling Y1 - 2016 U6 - https://doi.org/10.1016/j.tecto.2016.02.014 SN - 0040-1951 SN - 1879-3266 VL - 674 SP - 210 EP - 226 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - McVey, Mark J. A1 - Kim, Michael A1 - Tabuchi, Arata A1 - Srbely, Victoria A1 - Japtok, Lukasz A1 - Arenz, Christoph A1 - Rotstein, Ori A1 - Kleuser, Burkhard A1 - Semple, John W. A1 - Kuebler, Wolfgang M. T1 - Acid sphingomyelinase mediates murine acute lung injury following transfusion of aged platelets JF - American journal of physiology : Lung cellular and molecular physiology N2 - Pulmonary complications from stored blood products are the leading cause of mortality related to transfusion. Transfusion-related acute lung injury is mediated by antibodies or bioactive mediators, yet underlying mechanisms are incompletely understood. Sphingolipids such as ceramide regulate lung injury, and their composition changes as a function of time in stored blood. Here, we tested the hypothesis that aged platelets may induce lung injury via a sphingolipid-mediated mechanism. To assess this hypothesis, a two-hit mouse model was devised. Recipient mice were treated with 2 mg/kg intraperitoneal lipopolysaccharide (priming) 2 h before transfusion of 10 ml/kg stored (1-5 days) platelets treated with or without addition of acid sphingomyelinase inhibitor ARC39 or platelets from acid sphingomyelinase-deficient mice, which both reduce ceramide formation. Transfused mice were examined for signs of pulmonary neutrophil accumulation, endothelial barrier dysfunction, and histological evidence of lung injury. Sphingolipid profiles in stored platelets were analyzed by mass spectrophotometry. Transfusion of aged platelets into primed mice induced characteristic features of lung injury, which increased in severity as a function of storage time. Ceramide accumulated in platelets during storage, but this was attenuated by ARC39 or in acid sphingomyelinase-deficient platelets. Compared with wild-type platelets, transfusion of ARC39-treated or acid sphingomyelinase-deficient aged platelets alleviated lung injury. Aged platelets elicit lung injury in primed recipient mice, which can be alleviated by pharmacological inhibition or genetic deletion of acid sphingomyelinase. Interventions targeting sphingolipid formation represent a promising strategy to increase the safety and longevity of stored blood products. KW - transfusion-related acute lung injury KW - ceramide KW - acid sphingomyelinase KW - platelets KW - storage Y1 - 2017 U6 - https://doi.org/10.1152/ajplung.00317.2016 SN - 1040-0605 SN - 1522-1504 VL - 312 IS - 5 SP - 625 EP - 637 PB - American Physiological Society CY - Bethesda ER - TY - JOUR A1 - Peres, Tanara V. A1 - Eyng, Helena A1 - Lopes, Samantha C. A1 - Colle, Dirleise A1 - Goncalves, Filipe M. A1 - Venske, Debora K. R. A1 - Lopes, Mark W. A1 - Ben, Juliana A1 - Bornhorst, Julia A1 - Schwerdtle, Tanja A1 - Aschner, Michael A. A1 - Farina, Marcelo A1 - Prediger, Rui D. A1 - Leal, Rodrigo B. T1 - Developmental exposure to manganese induces lasting motor and cognitive impairment in rats JF - Neurotoxicology : the interdisciplinary journal of effects to toxic substances on the nervous system N2 - Exposure to high manganese (Mn) levels may damage the basal ganglia, leading to a syndrome analogous to Parkinson's disease, with motor and cognitive impairments. The molecular mechanisms underlying Mn neurotoxicity, particularly during development, still deserve further investigation. Herein, we addressed whether early-life Mn exposure affects motor coordination and cognitive function in adulthood and potential underlying mechanisms. Male Wistar rats were exposed intraperitoneally to saline (control) or MnCl2 (5, 10 or 20 mg/kg/day) from post-natal day (PND) 8-12. Behavioral tests were performed on PND 60-65 and biochemical analysis in the striatum and hippocampus were performed on PND14 or PND70. Rats exposed to Mn (10 and 20 mg/kg) performed significantly worse on the rotarod test than controls indicating motor coordination and balance impairments. The object and social recognition tasks were used to evaluate short-term memory. Rats exposed to the highest Mn dose failed to recognize a familiar object when replaced by a novel object as well as to recognize a familiar juvenile rat after a short period of time. However, Mn did not alter olfactory discrimination ability. In addition, Mn-treated rats displayed decreased levels of non-protein thiols (e.g. glutathione) and increased levels of glial fibrillary acidic protein (GFAP) in the striatum. Moreover, Mn significantly increased hippocampal glutathione peroxidase (GPx) activity. These findings demonstrate that acute low-level exposure to Mn during a critical neurodevelopmental period causes cognitive and motor dysfunctions that last into adulthood, that are accompanied by alterations in antioxidant defense system in both the hippocampus and striatum. (C) 2015 Elsevier Inc. All rights reserved. KW - Manganese KW - Neurotoxicity KW - Development KW - Motor coordination KW - Cognition Y1 - 2015 U6 - https://doi.org/10.1016/j.neuro.2015.07.005 SN - 0161-813X SN - 1872-9711 VL - 50 SP - 28 EP - 37 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - West, Charles A1 - Rosolem, Rafael A1 - MacDonald, Alan M. A1 - Cuthbert, Mark O. A1 - Wagener, Thorsten T1 - Understanding process controls on groundwater recharge variability across Africa through recharge landscapes JF - Journal of hydrology N2 - Groundwater is critical in supporting current and future reliable water supply throughout Africa. Although continental maps of groundwater storage and recharge have been developed, we currently lack a clear understanding on how the controls on groundwater recharge vary across the entire continent. Reviewing the existing literature, we synthesize information on reported groundwater recharge controls in Africa. We find that 15 out of 22 of these controls can be characterised using global datasets. We develop 11 descriptors of climatic, topographic, vegetation, soil and geologic properties using global datasets, to characterise groundwater recharge controls in Africa. These descriptors cluster Africa into 15 Recharge Landscape Units for which we expect recharge controls to be similar. Over 80% of the continents land area is organized by just nine of these units. We also find that aggregating the Units by similarity into four broader Recharge Landscapes (Desert, Dryland, Wet tropical and Wet tropical forest) provides a suitable level of landscape organisation to explain differences in ground-based long-term mean annual recharge and recharge ratio (annual recharge / annual precipitation) estimates. Furthermore, wetter Recharge Landscapes are more efficient in converting rainfall to recharge than drier Recharge Landscapes as well as having higher annual recharge rates. In Dryland Recharge Landscapes, we found that annual recharge rates largely varied according to mean annual precipitation, whereas recharge ratio estimates increase with increasing monthly variability in P-PET. However, we were unable to explain why ground based estimates of recharge signatures vary across other Recharge Landscapes, in which there are fewer ground based recharge estimates, using global datasets alone. Even in dryland regions, there is still considerable unexplained variability in the estimates of annual recharge and recharge ratio, stressing the limitations of global datasets for investigating ground-based information. KW - Groundwater recharge KW - Africa KW - Recharge controls KW - Ground-based estimates KW - Landscapes KW - Comparative hydrology Y1 - 2022 U6 - https://doi.org/10.1016/j.jhydrol.2022.127967 SN - 0022-1694 SN - 1879-2707 VL - 612 PB - Elsevier CY - Amsterdam ER -