Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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The relationship between the presence of antibodies and direct detection of Toxoplasma gondii in slaughtered calves and cattle in four European countries
Opsteegh, M. ; Spano, F. ; Aubert, D. ; Balea, A. ; Burrells, A. ; Cherchi, S. ; Cornelissen, J.B.W.J. ; Dam-Deisz, C. ; Guitian, J. ; Györke, A. ; Innes, E.A. ; Katzer, F. ; Limon, G. ; Possenti, A. ; Pozio, E. ; Schares, G. ; Villena, I. ; Wisselink, H.J. ; Giessen, J.W.B. van der - \ 2019
International Journal for Parasitology 49 (2019)7. - ISSN 0020-7519 - p. 515 - 522.
Cattle - Detection - Mouse bioassay - PCR - Serology - Toxoplasma gondii

In cattle, antibodies to Toxoplasma gondii infection are frequently detected, but evidence for the presence of T. gondii tissue cysts in cattle is limited. To study the concordance between the presence of anti-T. gondii IgG and viable tissue cysts of T. gondii in cattle, serum, liver and diaphragm samples of 167 veal calves and 235 adult cattle were collected in Italy, the Netherlands, Romania and the United Kingdom. Serum samples were tested for anti-T. gondii IgG by the modified agglutination test and p30 immunoblot. Samples from liver were analyzed by mouse bioassay and PCR after trypsin digestion. In addition, all diaphragms of cattle that had tested T. gondii-positive (either in bioassay, by PCR on trypsin-digested liver or serologically by MAT) and a selection of diaphragms from cattle that had tested negative were analyzed by magnetic capture quantitative PCR (MC-PCR). Overall, 13 animals were considered positive by a direct detection method: seven out of 151 (4.6%) by MC-PCR and six out of 385 (1.6%) by bioassay, indicating the presence of viable parasites. As cattle that tested positive in the bioassay tested negative by MC-PCR and vice-versa, these results demonstrate a lack of concordance between the presence of viable parasites in liver and the detection of T. gondii DNA in diaphragm. In addition, the probability to detect T. gondii parasites or DNA in seropositive and seronegative cattle was comparable, demonstrating that serological testing by MAT or p30 immunoblot does not provide information about the presence of T. gondii parasites or DNA in cattle and therefore is not a reliable indicator of the risk for consumers.

Nutrient uptake and use efficiency in co-occurring plants along a disturbance and nutrient availability gradient in the boreal forests of the southwest Yukon, Canada
Nitschke, Craig R. ; Waeber, Patrick O. ; Klaassen, Jan Willem ; Dordel, Julia ; Innes, John L. ; Aponte, Cristina - \ 2017
Journal of Vegetation Science 28 (2017)1. - ISSN 1100-9233 - p. 69 - 81.
Boreal - Nitrogen - Nutrient - Nutrient response efficiency - Nutrient use efficiency - Phosphorus - Picea glauca - Potassium
Aim: In boreal forest ecosystems plant productivity is typically constrained by mineral nutrient availability. In some boreal regions changes in nutrient availability have led to limited changes in productivity but large changes in plant composition. To determine the impact that a change in nutrient availability has on the plant communities it is important to understand how species use nutrients. Here we explore how plant species and functional types in a cold-dry boreal forest community use available nutrients by quantifying their respective nutrient utilization and response efficiency. Location: Boreal forests in the southwest corner of the Yukon Territory, Canada. Methods: We collected soil samples and total plant biomass from 29 plots from nine locations subjected to fire, harvesting or bark beetle disturbances. Nutrient analysis of all vegetation and soil samples were conducted to determine the concentration of macro- and micronutrients from both plant biomass and soils collected. Nutrient pools between stands with different disturbance histories are compared. Nutrient uptake, use and response efficiencies were then calculated and nutrient response profiles were developed for each species/functional type. Results: We found few differences between nutrient pools in plots with different disturbance histories. A clear separation of species and functional groups in elemental hyperspace suggesting divergent nutrient use in co-occurring species was identified. The use efficiency analysis highlighted that the species with the highest uptake efficiency have lowest use efficiency and vice versa. Species showed either a monotonic or constant relationship between nutrient response efficiency and N, P, K, reflecting a lack of relationship between plant productivity and resource availability or a linear increase in productivity with increasing nutrient availability, respectively. Conclusions: Our findings indicate that species are maximizing nutrient use along different parts of the resource gradient, which has implications for understanding how species respond to changes in nutrient availability. Our findings also show that nutrient use by some species may be governed more by uptake efficiency than use efficiency, allowing them to respond to increases in resource availability by increasing uptake rather than use.
Relationship between seroprevalence in the main livestock species and presence of Toxoplasma gondii in meat
Opsteegh, M. ; Maas, Miriam ; Schares, Gereon ; Giessena, Joke van der; Conraths, F. ; Bangoura, Berit ; Blaga, Radu ; Boireau, Pascal ; Vallee, Isabelle ; Djokic, Vitomir ; Roux, Delphine Le; Perret-Duménil, Catherine ; Ducry, Tamara ; Wisselink, H.J. ; Cornelissen, J.B.W.J. ; Villena, Isabelle ; Aubert, Dominique ; Györke, Adriana ; Cozma, Vasile ; Mircean, Viorica ; Pastiu, Anamaria Ioana ; Balea, Anamaria ; Kalmar, Zsuzsa ; Barburas, Diana ; Pozio, Edoardo ; Spano, Furio ; Limon, Georgina ; Georgiev, Milen ; Blake, Damer ; Guitian, Javier ; Dominguez, Javier ; Katzer, Frank ; Burrells, Alison ; Innes, Lee ; Djurkovic-Djakovic, Olgica ; Klunl, Ivana - \ 2016
Hoe planten zombies worden
Angenent, G.C. - \ 2014
Wageningen :
Wetenschappers aan het John Innes Centre en Wageningen UR (University & Research centre) hebben aangetoond hoe een specifieke bacteriële parasiet, die problemen in de ontwikkeling van gewassen als koolzaad veroorzaakt, in staat is planten zo te manipuleren dat ze meer bladeren produceren in plaats van bloemen. Hierdoor kunnen de bacteriën zich makkelijker naar andere planten verspreiden via de gastheerinsecten, die zich op de bladeren voeden met plantensap. De wetenschappers wisten vast te stellen op welke plant-eiwitten de bacteriën zich richten om de plant aan te zetten tot de productie van bladeren in plaats van bloemen, en zo de plant te veranderen in een zombie zonder toekomst en alleen nog maar dient voor het voortbestaan van het insect en dus de bacteriën, die meeliften op deze gastheer.
Can European forests meet the demands of the bioeconomy in the future? Wood supply alongside environmental services
Nabuurs, G.J. ; Schelhaas, M. ; Hendriks, C.M.A. ; Hengeveld, G.M. - \ 2014
In: Forests and globalizations: Challenges and opportunities for sustainable development / Innes, J., Nikolakis, W., Routledge (The Earthscan Forest Library ) - ISBN 9781138787391 - p. 153 - 165.
Application of social media in a regional design competition: a case study in the Netherlands
Waal, R.M. de; Kempenaar, J. ; Lammeren, R.J.A. van; Stremke, S. - \ 2013
In: Proceedings of the 14th International Conference on Information Technologies in Landscape Architecture, DLA Conference 2013. - Anhalt : Wichmann Verlag - p. 186 - 200.
Many scholars argue for significant stakeholder involvement in landscape planning and design1 (for instance STEINITZ, 2012; BOOHER & INNES, 2002; CRAIG, 1998). Facilitating public engagement can be a challenging task, which involves the sharing of information, enabling citizens to form opinions, the exchange of opinions, and community building to create trust and acceptance (MACINTOSH, 2008). When applying traditional methods for participation – such as participation meetings and workshops – accessibility and inclusiveness of the process can be problematic due to boundaries in time and space. Web-based methods offer participants the opportunity to engage without being physically present, at a time and place that suits them, and anonymously if necessary (BRABHAM, 2009; MACINTOSH, 2008; VAN LAMMEREN ET AL., 2007). Moreover, new technologies allow interactions with the public at relatively low cost and high levels of efficiency (MACINTOSH, 2008; KAPLAN & HAENLEIN, 2009; BRABHAM, 2009, KINGSTON ET AL., 2000). Several publications explore the potential use of web based technologies to enhance public involvement in spatial planning and design, for instance in the form of online visualization tools (VERVOORT ET AL, 2010; SHEN, 2009), serious games (POPLIN, 2012), so-called argumentation maps (RINNER ET AL., 2008) and crowdsourcing (JEANSSON ET AL., 2012, LIGTENBERG & VAN LAMMEREN, 2012; HAMMON & HIPPNER, 2012; BRABHAM, 2009); all advocating further development of such technologies to enable online participation and collaboration in planning and design. The extent to which existing platforms, such as social networking sites of MySpace and Facebook, can support participation and collaboration is rather underestimated in planning and design literature and practice. As we are witnessing increased use of social media in society – and the impact of social media on society – their use as a means to enable citizen participation and collaboration needs to be explored. In this paper, we analyse the role of social media in the Eo Wijers regional design competition in the Netherlands, which provides examples of the use of social media from the perspective of integrated design/ planning teams. We studied A) which social media the teams proposed and applied in the competition entries and B) the level of interaction with the public that the teams aimed for.
Coffee Metabolomics – a real kick!
Vos, R.C.H. de; Borem, F.M. ; Bouwmeester, H.J. ; Hageman, J. ; Lindinger, C. ; Blanc, I. ; Bino, R.J. ; Hall, R.D. - \ 2009
In: Metabomeeting 2009, 5-8 July 2009, Norwich, UK. - Norwich, UK. : Norwich BioScience Institutes, Institute of Food Research/John Innes Centre - p. 69 - 69.
Recently, the importance of post-harvest treatments on coffee bean quality has received growing attention, and several studies describe the impact of wet and dry processing on the physiology and quality of coffee. Nevertheless, the metabolic alterations occurring upon drying are not well understood. In this presentation we introduce metabolomics as a promising approach to study comprehensively the metabolite composition of the coffee bean and how this changes during processing. Using both GC and LC coupled to high resolution mass spectrometry, we were able to detect and compare thousands of mass signals representing hundreds of compounds simultaneously. We have studied the alterations in the metabolite profiles upon open air-drying of fresh ripe fruit of Coffea arabica (50% moisture) towards fullydried green coffee beans (11% moisture) and also have followed metabolic changes during the roasting of a large series of coffee (arabica and robusta) genotypes. Various patterns of alterations in relative metabolite abundance upon drying could be discriminated, suggesting differential and specific effects on metabolites and biosynthetic pathways. The example provided clearly indicates that metabolomics can provide novel insights into coffee composition and will greatly enhance our possibilities to find novel markers for quality traits or genotypes, to monitor and control changes occurring upon pre- and postharvest treatments, and to unravel coffee biology.
Mycosphaerella goes bananas
Kema, Gert - \ 2008
Necessity : economic impact assessment of changes in fishing gear
Frost, H. ; Boom, J.T. ; Buisman, F.C. ; Innes, J. ; Metz, S. ; Rodgers, P. ; Taal, C. - \ 2007
Copenhagen : University of Copenhagen, Institute of Food and Resource Economics (Report / Institute of Food and Resource Economics no. 194) - ISBN 9788792087454
vistuig - vis vangen - visserij - visserijbeheer - economische impact - beoordeling - wildbescherming - fishing gear - fishing - fisheries - fishery management - economic impact - assessment - wildlife conservation
Sustainable recreation in threatened forest landscapes
Visschedijk, P.A.M. - \ 2005
In: Forests in the balance: linking tradition and technology; abstracts. - [S.l.] : CFA - p. 270 - 270.
FORVISITS: modeling visitor flows to forests and other natural areas
Vries, S. de - \ 2005
In: Forests in the balance: linking tradition and technology; abstracts. - [S.l.] : CFA - p. 268 - 268.
The importance of green space for urban liveability: empirical evidence regarding outdoor recreation
Vries, S. de - \ 2005
In: Forests in the balance: linking tradition and technology; abstracts. - [S.l.] : CFA - p. 267 - 267.
Forest reserves as a reference for forest ecosystem management
Wijdeven, S.M.J. - \ 2005
In: Forests in the balance: linking tradition and technology; abstracts. - [S.l.] : CFA - p. 275 - 275.
Back to the 90s: retrospective analyses as a tool to demonstrate past natural regeneration dynamics and predict developments
Wijdeven, S.M.J. ; Koelewijn, H.P. - \ 2005
In: Forests in the balance: linking tradition and technology; abstracts. - [S.l.] : CFA - p. 26 - 26.
Biodiversity evaluation tools for European forests
Larsson, T.B. ; Angelstam, P. ; Balent, G. ; Barbati, A. ; Bijlsma, R.J. ; Boncina, A. ; Bradshaw, R. ; Bücking, W. ; Ciancio, O. ; Corona, P. ; Diaci, J. ; Dias, S. ; Ellenberg, H. ; Fernandes, F.M. ; Fernández-Gonzalez, F. ; Ferris, R. ; Frank, G. ; Moller, P.F. ; Giller, P.S. ; Gustafsson, L. ; Halbritter, K. ; Hall, S. ; Hansson, L. ; Innes, J. ; Jactel, H. ; Dobbertin, M.K. ; Klein, M. ; Marchetti, M. - \ 2001
In: Biodiversity Evaluation Tools for European Forests Oxford : Blackwell Science (Ecological bulletins 50) - ISBN 9788716164346 - p. 237 - 237.
biodiversiteit - bos - ecologie - Europa
Molecular properties of tomato spotted wilt virus.
Goldbach, R.W. - \ 1990
In: Abstract John Innes Inst., Norwich, UK (1990)
Biotechnologie en veredeling in Engeland : verslag van bezoeken aan enkele onderzoekinstellingen
Dons, J.J.M. ; Custers, J.B.M. - \ 1987
Wageningen : IVT (IVT - rapport nr. 242) - 17
groot-brittannië - onderzoek - onkruiden - great britain - research - weeds
Om op de hoogte te blijven van de ontwikkelingen op het gebied van het biotechnologisch onderzoek t.b.v. de plantenveredeling in Engeland werd een bezoek gebracht aan een aantal onderzoeksinstellingen: Institute of Horticultural Research, East Malling, Maidstone; North East London Polytechnic, Romford Road, Londen; Rothamsted Experimental Station, Harpenden; Plant Genetic Manipulation Group, University of Nottingham; en John Innes Institute, Colney Lane, Norwich. Met name wordt verslag gedaan van onderzoek dat aansluit op dat van het IVT
Verslag van 3 korte reizen naar het John Innes Institute, Norwich, Engeland 1985
Demmink, J.F. ; Raamsdonk, L.W.D. van; Sparnaaij, L.D. - \ 1985
Wageningen : IVT (Rapport / Instituut voor de Veredeling van Tuinbouwgewassen 214)
engeland - proefstations - plantenveredeling - onderzoeksinstituten - england - experimental stations - plant breeding - research institutes
Moleculaire genetische manipulatie : verslag van een bezoek aan het Plant Breeding Institute te Cambridge en het John Innes Institute te Norwich, in het kader van een studiereis door Engeland en Schotland van 22 juni t/m 2 juli 1982
Gelder, W.M.J. van - \ 1982
Wageningen : Stichting voor Plantenveredeling - 7
genetische modificatie - groot-brittannië - mannelijke steriliteit - moleculaire genetica - plantenveredeling - recombinant dna - genetic engineering - great britain - male sterility - molecular genetics - plant breeding
Verslag van een kort bezoek aan het Dept. of applied genetics van het John Innes institute te Norwich (Norfolk, Engeland) 27 en 28 juli 1971
Sparnaaij, L.D. - \ 1971
Wageningen : [s.n.] (Rapport / Instituut voor de veredeling van tuinbouwgewassen no. 86) - 5
teelt - cultuurmethoden - groot-brittannië - sierplanten - cultivation - cultural methods - great britain - ornamental plants
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