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.

    We have a manual that explains all the features 

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Dystrophin is required for normal synaptic gain in the Drosophila olfactory circuit
Jantrapirom, Salinee ; Cao, De Shou ; Wang, Jing W. ; Hing, Huey ; Tabone, Christopher J. ; Lantz, Kathryn ; Belle, J.S. de; Qiu, Yu Tong ; Smid, Hans M. ; Yamaguchi, Masamitsu ; Fradkin, Lee G. ; Noordermeer, Jasprina N. ; Potikanond, Saranyapin - \ 2019
Brain Research 1712 (2019). - ISSN 0006-8993 - p. 158 - 166.
Antennal lobe - Behavior - Drosophila melanogaster - Dystrophin - Olfaction - Olfactory receptor neurons - Projection neurons

The Drosophila olfactory system provides an excellent model to elucidate the neural circuits that control behaviors elicited by environmental stimuli. Despite significant progress in defining olfactory circuit components and their connectivity, little is known about the mechanisms that transfer the information from the primary antennal olfactory receptor neurons to the higher order brain centers. Here, we show that the Dystrophin Dp186 isoform is required in the olfactory system circuit for olfactory functions. Using two-photon calcium imaging, we found the reduction of calcium influx in olfactory receptor neurons (ORNs) and also the defect of GABA A mediated inhibitory input in the projection neurons (PNs) in Dp186 mutation. Moreover, the Dp186 mutant flies which display a decreased odor avoidance behavior were rescued by Dp186 restoration in the Drosophila olfactory neurons in either the presynaptic ORNs or the postsynaptic PNs. Therefore, these results revealed a role for Dystrophin, Dp 186 isoform in gain control of the olfactory synapse via the modulation of excitatory and inhibitory synaptic inputs to olfactory projection neurons.

Fulbright Arctic Initiative: An Innovative Model for Policy Relevant Research & Public Outreach
Virgina, Ross A. ; Sfraga, Michael ; Arnbom, Tom ; Chamberlain, Linda ; Chatwood, Susan ; Tepecik Dis, Asli ; Hoogensen Gjorv, Gunhild ; Harms, Tamara K. ; Hansen, Anne ; Holdmann, Gwen ; Johnson, Noor ; Lantz, Trevor ; Magnússon, Bjarni ; Neuhaus, Itty S. ; Poelzer, Gregory ; Sokka, Laura ; Tysyachnyouk, M. ; Varpe, Oystein ; Vestergaard, Niels - \ 2016
Arctic Yearbook 2016 (2016). - ISSN 2298-2418 - p. 212 - 224.
Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities
Myers-Smith, I.H. ; Forbes, B.C. ; Wilmking, M. ; Hallinger, M. ; Lantz, T. ; Blok, D. ; Sass, U.G.W. - \ 2011
Environmental Research Letters 6 (2011)4. - ISSN 1748-9326 - 15 p.
plant community responses - retrogressive thaw slumps - birch betula-glandulosa - recent climate-change - arctic tundra - cassiope-tetragona - alpine vegetation - dwarf shrub - experimental manipulation - environmental-change
Part of Focus on Dynamics of Arctic and Sub-Arctic Vegetation Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1) synthesize these findings, (2) present a conceptual framework that identifies mechanisms and constraints on shrub increase, (3) explore causes, feedbacks and implications of the increased shrub cover in tundra ecosystems, and (4) address potential lines of investigation for future research. Satellite observations from around the circumpolar Arctic, showing increased productivity, measured as changes in 'greenness', have coincided with a general rise in high-latitude air temperatures and have been partly attributed to increases in shrub cover. Studies indicate that warming temperatures, changes in snow cover, altered disturbance regimes as a result of permafrost thaw, tundra fires, and anthropogenic activities or changes in herbivory intensity are all contributing to observed changes in shrub abundance. A large-scale increase in shrub cover will change the structure of tundra ecosystems and alter energy fluxes, regional climate, soil–atmosphere exchange of water, carbon and nutrients, and ecological interactions between species. In order to project future rates of shrub expansion and understand the feedbacks to ecosystem and climate processes, future research should investigate the species or trait-specific responses of shrubs to climate change including: (1) the temperature sensitivity of shrub growth, (2) factors controlling the recruitment of new individuals, and (3) the relative influence of the positive and negative feedbacks involved in shrub expansion.
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