171 zoekresultaten voor “soil bacteria” in de Publieke website
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Next generation bacitracin: reimagining a classic antibiotic
Given the accelerating appearance of antimicrobial resistance, there is an urgent need for more fundamental research into novel antibiotic strategies. The work in this thesis helps to address this global problem by developing new antibiotic compounds, inspired by the antibacterial mechanisms of the…
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Synthesis and applications of cell wall glycopolimer fragments from Staphilococci and Enterococci
Carbohydrates are present on the surface of bacteria making them suitable antigen candidates for vaccine development. This thesis deals with the synthesis of two carbohydrate-based components; the capsular polisaccharide of S. aureus type 5 and teichoic acids from staphilococci and enterococci speci…
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Surviving embryogenesis: The extraembryonic serosa protects the insect egg against desiccation and infection
Promotor: Prof.dr. H.P. Spaink, Co-promotor: Dr. M. van der Zee
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The effects of burying beetle social behaviours on interspecific interactions
This ecological community has long been known to affect host biology, and their diverse roles have been further clarified in recent years following numerous studies of animal:microbiota interactions in diverse systems.
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Novel Immune Cell-Based Therapies for Atherosclerosis
Promotor: Prof.dr. J. Kuiper
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The dynamic organization of prokaryotic genomes: DNA bridging and wrapping proteins across the tree of life
Every organisms in the tree of life faces the same challenge: the length of its DNA exceeds the volume of the cell it needs to fit in. Several strategies have evolved to solve this problem, one of them being the expression of proteins that bind and organize the DNA.
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Geometry and Topology in Active and Driven Systems
The key characteristic of active matter is the motion of an emergent collection (such as a flock of birds), which is driven by the consumption of energy by its active components (i.e. individual birds).
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Autophagy and Lc3-associated phagocytosis in host defense against Salmonella
Control of infectious diseases poses continuous challenges for human health.
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Solvent tolerance mechanisms in Pseudomonas putida
Bacterial biocatalysis constitutes a sustainable alternative for high-value chemicals production by enabling the utilization of renewable feedstocks.
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Synthesis of oligosaccharide libraries from GBS capsular polysaccharides for structure-based selection of vaccine candidates
Glycoconjugate vaccines are composed of microbial poly- or oligosaccharides covalently linked to a carrier protein.
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Bacterial glycomimetics: synthesis and applications
This work has described synthetic strategies towards well-defined structures resembling capsular polysaccharide (CPS) fragments, CPS mimics, teichoic acid (TA) fragments as well as a third-generation ring-closing tandem metathesis (RCM) linker to better exploit the potential of automated synthesis.
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Impact of insect herbivory and microbial inoculants on the rhizosphere microbiome and volatilome
This thesis aims to investigate the effect of tripartite interaction between microbial inoculants, the plant, and herbivore insects on the rhizosphere microbiome and volatilome. We investigated the rhizosphere microbiome and volatilome of tomato plants exposed to insect herbivory and/or inoculated with…
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Metagenomics for community ecology; a next generation of eDNA monitoring tool for biomass studies in freshwater environments
How can we quantify the density of species within a community through environmental DNA concentrations?
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Functional analysis of agrobacterium tumefaciens virulence protein VirD5
Supervisor: P.J.J. Hooykaas
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Monitoring drought and salinity stress in agriculture by remote sensing for a sustainable future
Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…
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Global distribution patterns of mycorrhizal associations
Mycorrhizas are symbiotic associations between soil fungi and most plant species.
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Terrestrial field trials for side-effects of pesticides
The thesis describes terrestrial field trials aimed to detect side-effects of pesticides within the framework of pesticide registration procedures. Field trials were developed using vascular plants Brassica napus and Poa annua, caterpillars Pieris brassicae and effects on decomposition were studied…
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Cheating belowground interactions
Mycoheterotrophy is a particular mode of life in which plants obtain carbohydrates from their associated fungal partners, instead of by using photosynthesis.
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Bestrijdingsmiddelen en Milieu
The book ‘Bestrijdingsmiddelen en Milieu' gives a transparent overview of facts and figures concerning pesticide use in the Netherlands and the impact of pesticides on the environment.
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Fire and grazers in the West African savanna
Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh
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Molecular engineering of plant development using Agrobacterium-mediated protein translocation
Supervisor: P.J.J. Hooykaas Co-Supervisor: R. Offringa
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Afdeling Environmental Biology (CML-EB)
De afdeling Environmental Biology (CML-EB) houdt zich bezig met vraagstukken rondom biodiversiteit en natuurlijke hulpbronnen op het platteland in westerse en niet-westerse gebieden.
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of infections with Clostridioides difficile and multidrug-resistant bacteria, and faecal microbiota transplantation as an intervention strategy
Promotie
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Piecewise deterministic Markov processes: an analytic approach
Promotor: S.M. Verduyn Lunel, Co-Promotores: S.C.Hille, O.W. van Gaans
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Developing systems for high-throughput screening of infectious diseases using zebrafish
Promotor: Prof.dr. H.P. Spaink, Co-promotor: Prof.dr. A.H. Meijer
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Small-molecule inhibitors of bacterial metallo-β-lactamases
The main focus of the thesis is the discovery and development of novel inhibitors of bacterial metallo-β-lactamases (MBLs).
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A computational study of structural and excitonic properties of chlorosomes
The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…
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interactions in Jacobaea vulgaris: zooming in and zooming out from a plant-soil feedback perspective
Promotie
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Flows of six heavy metals
Can we provide the Dutch government with an integrative framework, wherein the various policies can be placed and the need for further measures can be identified?
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Functional xylem anatomy: intra and interspecific variation in stems of herbaceous and woody species
My PhD thesis investigates the ecological significance of resistance against drought-induced air bubble formation inside the water conduits of plants (embolism), and the plasticity and functional aspects of stem anatomical traits in woody and herbaceous species.
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Data Centres for Natural Recources and Products
Creating information portals for support of European environmental policy.
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Risks to Health and the Environment Related to the Use of Lead in Products
The aim of this project was to estimate emissions from lead products-in-use for the past, the present and the future and assess the development of toxicological risks associated with these products.
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Unsprayed field margins: effects on environment, biodiversity and agricultural practice
A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…
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Riccardo Mancinelli
Wiskunde en Natuurwetenschappen
r.mancinelli@cml.leidenuniv.nl | +31 71 527 2727
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Pengxuan Xie
Wiskunde en Natuurwetenschappen
p.xie@cml.leidenuniv.nl | +31 71 527 2727
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Chenguang Gao
Wiskunde en Natuurwetenschappen
c.gao@cml.leidenuniv.nl | +31 71 527 2727
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Development of life cycle assessment for residue-based bioenergy
Wat zijn de belangrijkste thema's in het uitvoeren van systemen voor bio-energie ?
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SMALL Savannah : an information system for the integrated analysis of land use change in the Far North of Cameroon
Promotores: W.T. de Groot, M. Tchuenté, Co-promotor: J.P. Cheylan
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The Metals Programme
Accumulation of metals in economy and environment and its associated risks, within the Netherlands and the EU.
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Peter van Bodegom
Wiskunde en Natuurwetenschappen
p.m.van.bodegom@cml.leidenuniv.nl | +31 71 527 7486
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Onderzoekers gaan de strijd aan met antibioticaresistente bacteriën
Wanneer een bacterie resistenter wordt voor het ene antibioticum, wordt het soms gevoeliger voor een ander. Om deze wisselwerking beter te begrijpen, brachten onderzoekers van het Instituut Biologie Leiden (IBL) en het Leiden Academic Centre for Drug Research (LACDR) onder leiding van Daniel Rozen en…
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Kinderkanker opsporen met bacteriën
Ariane Briegel wil bacteriën inzetten om vroegtijdig kanker te detecteren. Samen met postdoc Alise Muok ontwikkelt ze een methode om de urine van patiënten snel en goedkoop te kunnen testen op de aanwezigheid van verdachte moleculen. Ze ontvangen hiervoor een beurs van ongeveer 150.000 euro van KWF…
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Duurzame toekomst
Hoe kunnen we onze maatschappij zo inrichten dat de wereld leefbaar blijft voor onszelf en al het andere leven om ons heen? Aan dat vraagstuk werken Leidse wetenschappers samen vanuit allerlei disciplines, van biologie tot datawetenschap en van milieueconomie tot archeologie.
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Less is more: reduced mycelial heterogeneity for improved production of enzymes and antibiotics
Hoe kan de techniek van cell wall engineering worden ingezet zodat de industrie streptomyceten beter kunnen verwerken tot nieuwe antibiotica?
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Quantification of ecosystem services within river catchments
How can ecosystem services within river catchments be quantified in spatial and temporal explicit way?
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Improving vegetation representation in Multi-sensor Earth Observation Products through phenology and trait-based priors
What are the behaviours of plant traits throughout various points in the growing season in a radiative transfer model framework and how well can this knowledge be integrated through data assimilation to provide priors for robust local and global vegetation products and analysis?
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MULTIPLY - MULTIscale SENTINEL land surface information retrieval Platform
Aim: To develop and enable application of a practical, flexible, user-friendly platform to provide the scientific community with a tool to generate land surface products and its associated uncertainties and exploit these for data-intensive science.
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Metals in LCIA
A critical look at the impact assessment modelling of metals in Life Cycle Impact Assessment and improvement options.
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Vidi beurs toegekend aan Nadia Soudzilovskaia (CML)
Op 11 Mei 2016 is de prestigieuze NWO Vidi beurs toegekend aan Nadia Soudzilovskaia voor haar onderzoeksvoorstel met de titel “Do mycorrhizal fungi mediate soil carbon fate?”.
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Studenten helpen Malediven vruchtbaarder te maken
Dankzij de idyllische setting met parelwitte stranden groeiden de Malediven uit tot een toeristische trekpleister. Dat zorgt voor inkomens maar is ook problematisch voor de kwetsbare natuur. Met bewoners probeerden studenten van diverse universiteiten de bodem weer vruchtbaarder te maken. Hoe deden…