10 results on '"Kertesz, M A"'
Number of results to display per page
Search Results
2. Accurate, multi-kb reads resolve complex populations and detect rare microorganisms
- Author
-
Sharon, I, Kertesz, M, Hug, LA, Pushkarev, D, Blauwkamp, TA, Castelle, CJ, Amirebrahimi, M, Thomas, BC, Burstein, D, Tringe, SG, Williams, KH, and Banfield, JF
- Subjects
Deltaproteobacteria ,Geologic Sediments ,Genome ,Base Sequence ,Hydrolases ,Bioinformatics ,Microbial Consortia ,Human Genome ,Bacterial ,Chloroflexi ,DNA ,Biodiversity ,Biological Sciences ,Medical and Health Sciences ,Glucose ,Bacterial Proteins ,Genetics ,Metagenomics ,Sequence Analysis - Abstract
© 2015 Sharon et al. Accurate evaluation of microbial communities is essential for understanding global biogeochemical processes and can guide bioremediation and medical treatments. Metagenomics is most commonly used to analyze microbial diversity and metabolic potential, but assemblies of the short reads generated by current sequencing platforms may fail to recover heterogeneous strain populations and rare organisms. Here we used short (150-bp) and long (multi-kb) synthetic reads to evaluate strain heterogeneity and study microorganisms at low abundance in complex microbial communities from terrestrial sediments. The long-read data revealed multiple (probably dozens of) closely related species and strains from previously undescribed Deltaproteobacteria and Aminicenantes (candidate phylum OP8). Notably, these are the most abundant organisms in the communities, yet short-read assemblies achieved only partial genome coverage, mostly in the form of short scaffolds (N50 = ∼2200 bp). Genome architecture and metabolic potential for these lineages were reconstructed using a new synteny-based method. Analysis of long-read data also revealed thousands of species whose abundances were
- Published
- 2015
- Full Text
- View/download PDF
3. Sulfonate desulfurization in Rhodococcus from wheat rhizosphere communities
- Author
-
Schmalenberger, A., Hodge, S., Hawkesford, M. J., and Kertesz, M. A.
- Subjects
bacteria ,Microbiology - Abstract
Organically bound sulfur makes up about 90% of the total sulfur in soils, with sulfonates often the dominant fraction. Actinobacteria affiliated to the genus Rhodococcus were able to desulfonate arylsulfonates in wheat rhizospheres from the Broadbalk long-term field wheat experiment, which includes plots treated with inorganic fertilizer with and without sulfate, with farmyard manure, and unfertilized plots. Direct isolation of desulfonating rhizobacteria yielded Rhodococcus strains which grew well with a range of sulfonates, and contained the asfAB genes, known to be involved in sulfonate desulfurization by bacteria. Expression of asfA in vitro increased > 100-fold during growth of the Rhodococcus isolates with toluenesulfonate as sulfur source, compared with growth with sulfate. By contrast, the closely related Rhodococcus erythropolis and Rhodococcus opacus type strains had no desulfonating activity and did not contain asfA homologues. The overall actinobacterial community structure in wheat rhizospheres was influenced by the sulfur fertilization regime, as shown by specific denaturing gradient gel electrophoresis of PCR amplified 16S rRNA gene fragments, and asfAB clone library analysis identified nine different asfAB genotypes closely affiliated to the Rhodococcus isolates. However, asfAB-based multiplex restriction fragment length polymorphism (RFLP)/terminal-RFLP analysis of wheat rhizosphere communities revealed only slight differences between the fertilization regimes, suggesting that the desulfonating Rhodococcus community does not specifically respond to changes in sulfate supply.
- Published
- 2009
4. SERONTO: A Socio-Ecological Research and Observation Ontology: the core ontology: A Long-Term Biodiversity, Ecosystem and Awareness Research Network
- Author
-
van der Werf, D.C., Adamescu, M., Ayromlou, M., Bertrand, N., Borovec, J., Boussard, H., Cazacu, C., Van Daele, T., Datcu, S., Frenzel, M., Hammen, V., Karasti, H., Kertesz, M., Kuitunen, P., Lane, M., Lieskovsky, J., Magagna, B., Peterseil, J., Rennie, S., Schentz, H., Schleidt, K., and Tuominen, L.
- Subjects
Centre for Ecosystem Studies ,biodiversiteit ,ecosystems ,ecosystemen ,Centrum Ecosystemen ,biodiversity - Published
- 2009
5. Cross-site comparison of grassland diversity
- Author
-
Bartha, S, Kertesz, M, KOVAKS LANG, E, COFFIN PETERS, D. P., Gosz, J. M., Glenn, S, Collins, S. L., Tamas, R, Hochstrasser, T, KROEL DULAY, G, Hahan, I, Odor, P, Harris, W, Campetella, Giandiego, Kun, A, Ittzes, P, and Bokros, S.
- Published
- 1999
6. Carbon nanotubes artificial muscles
- Author
-
Baughman, R. H., Changxing, C., Zakhidov, A. A., Iqbal, Z., Barisci, J. N., Spinks, G. N., Wallace, G. G., Mazzoldi, Alberto, DE ROSSI, DANILO EMILIO, Rinzler, A. G., Jashinski, O., Roth, S., and Kertesz, M.
- Published
- 1999
7. Multivariate geostatistical inventory of sodicity hazard in the Hungarian puszta
- Author
-
Van Meirvenne, M., Groote, P. de, Kertesz, M., Toth, T., Hofman, G., Escadafal, Richard (ed.), Mulders, M.A. (ed.), and Thiombiano, L. (ed.)
- Subjects
ANALYSE D'IMAGE ,SOL ,GEOSTATISTIQUE ,ECOSYSTEME ,DONNEES SATELLITE ,SATELLITE SPOT ,ANALYSE FACTORIELLE ,ANALYSE EN COMPOSANTES PRINCIPALES ,RELATION SOL PLANTE ,SALINISATION ,PUSZTA - Abstract
Le Parc National de Hortobagy est situé à l'est de la Hongrie. Il contient les derniers vestiges de l'écosystème typique de "Puszta" de la Grande Plaine Hongroise. Cet écosystème est caractérisé par une végétation semi-naturelle sur des sols sodiques. Afin d'essayer de protéger cette végétation originelle, les autorités du Parc désiraient avoir des informations plus complètes sur la salinisation du périmètre ainsi que sur la relation avec la végétation. L'échantillonnage du sol et de la végétation était basé sur une image panchromatique SPOT. Cette image était subdivisée en un algorithme quadtree, résultant dans 256 feuilles de quadtree. Les centres de ces feuilles ont été observés sur le terrain. L'échantillonnage comprend la caractérisation de la composition botanique et des échantillons du sol à 3 profondeurs (0-10, 10-20 et 20-30 cm). Les échantillons du sol ont été analysés pour la saturation en eau, pH, conductivité électrique et la teneur en sodium, tous déterminés sur des pâtes de sol saturé. Des techniques univariable, multivariable (analyse en composantes principales) et multivariable régionalisée (Analyse Factorielle Krigeante, AKF) ont été utilisées pour analyser la relation entre les variables du sol, ou les "scores" sur le premier axe, avec le type de végétation. L'AKF donnait les meilleurs résultats et a été utilisée finalement pour élaborer une carte d'un "index de sodicité". (Résumé d'auteur)
- Published
- 1996
8. The role of Variovorax and other Comamonadaceae in sulfur transformations by microbial wheat rhizosphere communities exposed to different sulfur fertilization regimes
- Author
-
Schmalenberger, A., Hodge, S., Bryant, A., Hawkesford, M. J., Singh, B. K., and Kertesz, M. A.
- Subjects
Microbiology - Abstract
Sulfonates are a key component of the sulfur present in agricultural soils. Their mobilization as part of the soil sulfur cycle is mediated by rhizobacteria, and involves the oxidoreductase AsfA. In this study, the effect of fertilization regime on rhizosphere bacterial asfA distribution was examined at the Broadbalk long-term wheat experiment, Rothamsted, UK, which was established in 1843, and has included a sulfur-free treatment since 2001. Direct isolation of desulfonating rhizobacteria from the wheat rhizospheres led to the identification of several Variovorax and Polaromonas strains, all of which contained the asfA gene. Rhizosphere DNA was isolated from wheat rhizospheres in plots fertilized with inorganic fertilizer with and without sulfur, with farmyard manure or from unfertilized plots. Genetic profiling of 16S rRNA gene fragments [denaturing gradient gel electrophoresis (DGGE)] from the wheat rhizospheres revealed that the level of inorganic sulfate in the inorganic fertilizer was correlated with changes in the general bacterial community structure and the betaproteobacterial community structure in particular. Community analysis at the functional gene level (asfA) showed that 40% of clones in asfAB clone libraries were affiliated to the genus Variovorax. Analysis of asfAB-based terminal restriction fragment length polymorphism (T-RFLP) fingerprints showed considerable differences between sulfate-free treatments and those where sulfate was applied. The results suggest the occurrence of desulfonating bacterial communities that are specific to the fertilization regime chosen and that arylsulfonates play an important role in rhizobacterial sulfur nutrition.
- Full Text
- View/download PDF
9. Sulfonates in Terrestrial Environments (SUITE)
- Author
-
Cook, A. M., Marcomini, A., Mason, J. R., Kertesz, M. A., Dürre, P., Jørgen Eriksen, and Lars Elsgaard
10. LOTVS: A global collection of permanent vegetation plots
- Author
-
Marta Gaia Sperandii, Francesco de Bello, Enrique Valencia, Lars Götzenberger, Manuele Bazzichetto, Thomas Galland, Anna E‐Vojtkó, Luisa Conti, Peter B. Adler, Hannah Buckley, Jiří Danihelka, Nicola J. Day, Jürgen Dengler, David J. Eldridge, Marc Estiarte, Ricardo García‐González, Eric Garnier, Daniel Gómez‐García, Lauren Hallett, Susan Harrison, Tomas Herben, Ricardo Ibáñez, Anke Jentsch, Norbert Juergens, Miklós Kertész, Duncan M. Kimuyu, Katja Klumpp, Mike Le Duc, Frédérique Louault, Rob H. Marrs, Gábor Ónodi, Robin J. Pakeman, Meelis Pärtel, Begoña Peco, Josep Peñuelas, Marta Rueda, Wolfgang Schmidt, Ute Schmiedel, Martin Schuetz, Hana Skalova, Petr Šmilauer, Marie Šmilauerová, Christian Smit, Ming‐Hua Song, Martin Stock, James Val, Vigdis Vandvik, Karsten Wesche, Susan K. Wiser, Ben A. Woodcock, Truman P. Young, Fei‐Hai Yu, Amelia A. Wolf, Martin Zobel, Jan Lepš, Centro de Investigaciones sobre Desertificacion (CIDE), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Universidad Rey Juan Carlos [Madrid] (URJC), Institute of Botany of the Czech Academy of Sciences (IB / CAS), Czech Academy of Sciences [Prague] (CAS), UNIVERSITY OF SOUTH BOHEMIA CESKE BUDEJOVICE CZE, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Czech University of Life Sciences Prague (CZU), Utah State University (USU), Auckland University of Technology (AUT), Masaryk University [Brno] (MUNI), Victoria University of Wellington, Zürich University of Applied Sciences (ZHAW), University of New South Wales [Kensington], CREAF - Centre for Ecological Research and Applied Forestries, Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] (IPE - CSIC), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), University of Oregon, Eugene, OR 97403, United States, University of California (UC), Department of Zoology, Charles University in Prague, Faculty of Science, Viniicna 7, 128 43 Praha 2, Universidad Pública de Navarra [Espagne] = Public University of Navarra (UPNA), University of Hamburg, Hungarian Academy of Sciences (MTA), University of Liverpool, Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), The James Hutton Institute, University of Tartu, Autonomous University of Madrid, Faculty of Sciences, Department of Ecology, 28049 Madrid, Spain, Universidad de Sevilla / University of Sevilla, Centre for Biodiversity and Sustainable Land-use [University of Göttingen] (CBL), Georg-August-University = Georg-August-Universität Göttingen, Hamburg University of Applied Sciences [Hamburg], Swiss Federal Institute for Forest, Snow and Landscape Research WSL, University of South Bohemia, Groningen Institute for Evolutionary Life Sciences [Groningen] (GELIFES), University of Groningen [Groningen], Chinese Academy of Agricultural Sciences (CAAS), Wadden Sea National Park of Schleswig-Holstein, University of Bergen (UiB), Senckenberg Museum of Natural History Görlitz, Senckenberg – Leibniz Institution for Biodiversity and Earth System Research - Senckenberg Gesellschaft für Naturforschung, Leibniz Association-Leibniz Association, Manaaki Whenua – Landcare Research [Lincoln], Center for Ecology and Hydrology, Taizhou University, University of Texas-Pan, Smit group, Royal Society of New Zealand, Czech Science Foundation, Academy of Sciences of the Czech Republic, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Institut National de la Recherche Agronomique (France), Federal Ministry of Education and Research (Germany), Oberfranken Stiftung, Agence Nationale de la Recherche (France), Scottish Government's Rural and Environment Science and Analytical Services, Estonian Research Council, European Commission, Fundación Ramón Areces, Generalitat de Catalunya, European Research Council, Dresden University of Technology, Ministry of Business, Innovation, and Employment (New Zealand), Natural Environment Research Council (UK), Biotechnology and Biological Sciences Research Council (UK), Comunidad de Madrid, Universidad Rey Juan Carlos, National Science Foundation (US), South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses [University of South Bohemia] (CENAKVA), Faculty of Fisheries and Protection of Waters [University of South Bohemia], University of South Bohemia -University of South Bohemia, Desertification Research Centre (CIDE), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Universitat de València (UV), University of Bayreuth, German Centre for Integrative Biodiversity Research (iDiv), University of New South Wales [Sydney] (UNSW), Centre for Ecological Research and Forestry Applications (CREAF), Unit CREAF-CSIC-UABB, Global Ecology Unit (CREAF-CSIC-UAB), Université de Montpellier (UM), Institut de Recherche pour le Développement (IRD), Department of Mathematics, University of Oregon [Eugene], University of Oregon [Eugene], Department of Computer Science [Univ California Davis] (CS - UC Davis), University of California [Davis] (UC Davis), University of California (UC)-University of California (UC), Charles University [Prague] (CU), Distributed Events Analysis Research Group (MTA SZTAKI Hungarian Academy of Sciences), Mpala Research Centre, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), Université Clermont Auvergne (UCA), Institute of Computer Science [University of Tartu, Estonie], Centre de Recerca Ecològica i Aplicacions Forestals - Centre for Ecological Research and Forestry Applications, Partenaires INRAE, University of Chinese Academy of Sciences [Beijing] (UCAS), Lake Ecosystems Group [Lancaster, U.K.] (Centre for Ecology & Hydrology), Lancaster Environment Centre [Lancaster, U.K.], Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, China, Department of Electrical and Computer Engineering - University of Texas (ECE), University of Texas at Austin [Austin], ANR-11-INBS-0001,ANAEE-FR,ANAEE-Services(2011), Sperandii, M. G., de Bello, F., Valencia, E., Gotzenberger, L., Bazzichetto, M., Galland, T., E-Vojtko, A., Conti, L., Adler, P. B., Buckley, H., Danihelka, J., Day, N. J., Dengler, J., Eldridge, D. J., Estiarte, M., Garcia-Gonzalez, R., Garnier, E., Gomez-Garcia, D., Hallett, L., Harrison, S., Herben, T., Ibanez, R., Jentsch, A., Juergens, N., Kertesz, M., Kimuyu, D. M., Klumpp, K., Le Duc, M., Louault, F., Marrs, R. H., Onodi, G., Pakeman, R. J., Partel, M., Peco, B., Penuelas, J., Rueda, M., Schmidt, W., Schmiedel, U., Schuetz, M., Skalova, H., Smilauer, P., Smilauerova, M., Smit, C., Song, M. -H., Stock, M., Val, J., Vandvik, V., Wesche, K., Wiser, S. K., Woodcock, B. A., Young, T. P., Yu, F. -H., Wolf, A. A., Zobel, M., and Leps, J.
- Subjects
Plant communities ,temporal analysis ,Plant community ,Plant Science ,ecological succession ,Permanent plot ,ecoinformatic ,plant communitie ,Ecology and Environment ,ecoinformatics ,vegetation ,Ecological succession ,Ecoinformatics ,Global scale ,577: Ökologie ,time-serie ,Vegetation ,ecosystem stability ,Ecology ,time-series ,Temporal analysis ,permanent plot ,plant diversity ,plant communities ,temporal analysi ,580: Pflanzen (Botanik) ,Plant diversity ,global scale ,Ecosystem stability ,Permanent plots ,Time-series ,permanent plots ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology - Abstract
Analysing temporal patterns in plant communities is extremely important to quantify the extent and the consequences of ecological changes, especially considering the current biodiversity crisis. Long-term data collected through the regular sampling of permanent plots represent the most accurate resource to study ecological succession, analyse the stability of a community over time and understand the mechanisms driving vegetation change. We hereby present the LOng-Term Vegetation Sampling (LOTVS) initiative, a global collection of vegetation time-series derived from the regular monitoring of plant species in permanent plots. With 79 data sets from five continents and 7,789 vegetation time-series monitored for at least 6 years and mostly on an annual basis, LOTVS possibly represents the largest collection of temporally fine-grained vegetation time-series derived from permanent plots and made accessible to the research community. As such, it has an outstanding potential to support innovative research in the fields of vegetation science, plant ecology and temporal ecology., The authors acknowledge institutional support as follows. Nicola J. Day: Te Apārangi Royal Society of New Zealand (Rutherford Postdoctoral Fellowship). Jiří Danihelka: Czech Science Foundation (project no. 19-28491X) and Czech Academy of Sciences (project no. RVO 67985939). Francesco de Bello: Spanish Plan Nacional de I+D+i (project PGC2018-099027-B-I00). Eric Garnier: La Fage INRA experimental station. Tomáš Herben: GAČR grant 20-02901S. Anke Jentsch: German Federal Ministry of Education and Research (grant 031B0516C - SUSALPS) and Oberfrankenstiftung (grant OFS FP00237). Norbert Juergens: German Federal Ministry of Education and Research (grant 01LG1201N - SASSCAL ABC). Frédérique Louault and Katja Klumpp: AnaEE-France (ANR-11-INBS-0001). Robin J. Pakeman: Strategic Research Programme of the Scottish Government's Rural and Environment Science and Analytical Services Division. Meelis Pärtel: Estonian Research Council (PRG609) and European Regional Development Fund (Centre of Excellence EcolChange). Josep Peñuelas: Spanish Government (grant PID2019-110521GB-I00), Fundación Ramon Areces (grant ELEMENTAL-CLIMATE), Catalan Government (grant SGR 2017-1005), and European Research Council (Synergy grant ERC-SyG-2013-610028, IMBALANCE-P). Ute Schmiedel: German Federal Ministry of Education and Research (Promotion numbers 01LC0024, 01LC0024A, 01LC0624A2, 01LG1201A, 01LG1201N). Hana Skálová: GAČR grant 20-02901S. Karsten Wesche: International Institute Zittau, Technische Universität Dresden. Susan K. Wiser: New Zealand Ministry for Business, Innovation and Employment’s Strategic Science Investment Fund. Ben A. Woodcock: NERC and BBSRC (NE/N018125/1 LTS-M ASSIST - Achieving Sustainable Agricultural Systems). Enrique Valencia: Program for attracting and retaining talent of Comunidad de Madrid (no. 2017-T2/AMB-5406) and Community of Madrid and Rey Juan Carlos University (Young Researchers R&D Project. Ref. M2165 – INTRANESTI). Truman P. Young: National Science Foundation (LTREB DEB 19-31224).
- Published
- 2022
- Full Text
- View/download PDF
Catalog
Books, media, physical & digital resources
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.