Institution
Ghent University
Education•Ghent, Belgium•
About: Ghent University is a education organization based out in Ghent, Belgium. It is known for research contribution in the topics: Population & Context (language use). The organization has 36170 authors who have published 111042 publications receiving 3774501 citations. The organization is also known as: UGent & University of Ghent.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: It is concluded that KRP2 exerts a plant growth inhibitory activity by reducing cell proliferation in leaves, but, in contrast to its mammalian counterparts, it may not control the timing of cell cycle exit and differentiation.
Abstract: Cyclin-dependent kinase inhibitors, such as the mammalian p27Kip1 protein, regulate correct cell cycle progression and the integration of developmental signals with the core cell cycle machinery. These inhibitors have been described in plants, but their function remains unresolved. We have isolated seven genes from Arabidopsis that encode proteins with distant sequence homology with p27Kip1, designated Kip-related proteins (KRPs). The KRPs were characterized by their domain organization and transcript profiles. With the exception of KRP5, all presented the same cyclin-dependent kinase binding specificity. When overproduced, KRP2 dramatically inhibited cell cycle progression in leaf primordia cells without affecting the temporal pattern of cell division and differentiation. Mature transgenic leaves were serrated and consisted of enlarged cells. Although the ploidy levels in young leaves were unaffected, endoreduplication was suppressed in older leaves. We conclude that KRP2 exerts a plant growth inhibitory activity by reducing cell proliferation in leaves, but, in contrast to its mammalian counterparts, it may not control the timing of cell cycle exit and differentiation.
652 citations
••
University of Amsterdam1, University of Bordeaux2, Semmelweis University3, French Institute of Health and Medical Research4, Karolinska Institutet5, University of Oxford6, University of Bristol7, Imperial College London8, Medical University of Warsaw9, Ghent University10, La Trobe University11, University of North Carolina at Chapel Hill12, University of Tartu13, Icahn School of Medicine at Mount Sinai14, University of Helsinki15
TL;DR: This review provides an expert-based update of recent advances in the methods to study EVs and summarizes currently accepted considerations and recommendations from sample collection to isolation, detection, and characterization of EVs.
Abstract: Owing to the relationship between extracellular vesicles (EVs) and physiological and pathological conditions, the interest in EVs is exponentially growing. EVs hold high hopes for novel diagnostic and translational discoveries. This review provides an expert-based update of recent advances in the methods to study EVs and summarizes currently accepted considerations and recommendations from sample collection to isolation, detection, and characterization of EVs. Common misconceptions and methodological pitfalls are highlighted. Although EVs are found in all body fluids, in this review, we will focus on EVs from human blood, not only our most complex but also the most interesting body fluid for cardiovascular research.
651 citations
••
TL;DR: A central role for microphytobenthos in moderating carbon flow in coastal sediments is indicated, and C-13 assimilation increased until day 3, and carbon isotope analysis of polar lipid derived fatty acids specific for bacteria showed rapid, significant transfer from benthic algae to bacteria.
Abstract: At two intertidal sites (one sandy and one silty, in the Scheldt estuary, The Netherlands), the fate of microphytobenthos was studied through an in situ C-13 pulse- chase experiment. Label was added at the beginning of low tide, and uptake of C-13 by algae was linear during the whole period of tidal exposure (about 27 mg m(-2) h(-1) in the top millimeter at both sites). The C-13 fixed by microphytobenthos was rapidly displaced toward deeper sediment layers (down to 6 cm), in particular at the dynamic, sandy site. The residence times of microphytobenthos with respect to external losses (resuspension and respiration) were about 2.4 and 5.6 d at the sandy and silly stations, respectively. The transfer of carbon from microphytobenthos to benthic consumers was estimated from the appearance of C-13 in bacterial biomarkers, handpicked nematodes, and macrofauna. The incorporation of C-13 into bacterial biomass was quantified by carbon isotope analysis of polar lipid derived fatty acids specific for bacteria. The bacterial polar lipid-derived fatty acids (i14:0, i15:0, a15:0, i16:0, and 18:1 omega 7c) showed rapid, significant transfer from benthic algae to bacteria with maximum labeling after 1 d. Nematodes became enriched after 1 h, and C-13 assimilation increased until day 3. Microphytobenthos carbon entered all heterotrophic components in proportion to heterotrophic biomass distribution (bacteria > macrofauna > meiofauna). Our results indicate a central role for microphytobenthos in moderating carbon flow in coastal sediments. [KEYWORDS: Water marine habitats; microbenthic communities; westerschelde estuary; microbial biomass; epipelic diatoms; ecological role; organic-matter; grazing rates; chlorophyll-a; secret garden]
651 citations
••
Auburn University1, Commonwealth Scientific and Industrial Research Organisation2, Norwegian Institute for Air Research3, International Institute for Applied Systems Analysis4, University of Zielona Góra5, University of East Anglia6, University of Maryland Center for Environmental Science7, Centre national de la recherche scientifique8, Stanford University9, Ghent University10, University of California, Irvine11, Université libre de Bruxelles12, Food and Agriculture Organization13, Max Planck Society14, Peking University15, Karlsruhe Institute of Technology16, University of Bern17, University of Toulouse18, École Normale Supérieure19, Netherlands Environmental Assessment Agency20, Utrecht University21, Ocean University of China22, Zhejiang University23, University of Leeds24, Woods Hole Research Center25, National Oceanic and Atmospheric Administration26, Southern Cross University27, Beijing Normal University28, Chinese Academy of Sciences29, National Institute for Environmental Studies30, Leibniz Institute of Marine Sciences31, Université Paris-Saclay32, Tsinghua University33, Oeschger Centre for Climate Change Research34, Yale University35, Scotland's Rural College36, University of Minnesota37, Lund University38, Japan Agency for Marine-Earth Science and Technology39, Chiba University40, Massachusetts Institute of Technology41, VU University Amsterdam42, University of California, San Diego43, Mississippi State University44
TL;DR: A global N2O inventory is presented that incorporates both natural and anthropogenic sources and accounts for the interaction between nitrogen additions and the biochemical processes that control N 2O emissions, using bottom-up, top-down and process-based model approaches.
Abstract: Nitrous oxide (N2O), like carbon dioxide, is a long-lived greenhouse gas that accumulates in the atmosphere. Over the past 150 years, increasing atmospheric N2O concentrations have contributed to stratospheric ozone depletion1 and climate change2, with the current rate of increase estimated at 2 per cent per decade. Existing national inventories do not provide a full picture of N2O emissions, owing to their omission of natural sources and limitations in methodology for attributing anthropogenic sources. Here we present a global N2O inventory that incorporates both natural and anthropogenic sources and accounts for the interaction between nitrogen additions and the biochemical processes that control N2O emissions. We use bottom-up (inventory, statistical extrapolation of flux measurements, process-based land and ocean modelling) and top-down (atmospheric inversion) approaches to provide a comprehensive quantification of global N2O sources and sinks resulting from 21 natural and human sectors between 1980 and 2016. Global N2O emissions were 17.0 (minimum-maximum estimates: 12.2-23.5) teragrams of nitrogen per year (bottom-up) and 16.9 (15.9-17.7) teragrams of nitrogen per year (top-down) between 2007 and 2016. Global human-induced emissions, which are dominated by nitrogen additions to croplands, increased by 30% over the past four decades to 7.3 (4.2-11.4) teragrams of nitrogen per year. This increase was mainly responsible for the growth in the atmospheric burden. Our findings point to growing N2O emissions in emerging economies-particularly Brazil, China and India. Analysis of process-based model estimates reveals an emerging N2O-climate feedback resulting from interactions between nitrogen additions and climate change. The recent growth in N2O emissions exceeds some of the highest projected emission scenarios3,4, underscoring the urgency to mitigate N2O emissions.
650 citations
••
TL;DR: Luyckx et al. as discussed by the authors extended the four-dimensional identity formation model with a fifth dimension, labeled ruminative (or maladaptive) exploration, which was added as a complement to two forms of reflective (or adaptive) exploration already included in the model.
649 citations
Authors
Showing all 36585 results
Name | H-index | Papers | Citations |
---|---|---|---|
Stephen V. Faraone | 188 | 1427 | 140298 |
Peter Carmeliet | 164 | 844 | 122918 |
Monique M.B. Breteler | 159 | 546 | 93762 |
Dirk Inzé | 149 | 647 | 74468 |
Rajesh Kumar | 149 | 4439 | 140830 |
Vishva M. Dixit | 145 | 355 | 96471 |
Ruth J. F. Loos | 142 | 647 | 92485 |
Martin Grunewald | 140 | 1575 | 126911 |
Willy Verstraete | 139 | 920 | 76659 |
Barbara Clerbaux | 138 | 1394 | 96447 |
Peter Vandenabeele | 135 | 729 | 81692 |
Michael Tytgat | 134 | 1449 | 94133 |
Pascal Vanlaer | 133 | 1270 | 91850 |
Filip Moortgat | 132 | 1118 | 97714 |
Emelia J. Benjamin | 131 | 640 | 99972 |