684 zoekresultaten voor “meaning plant” in de Publieke website
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Becoming Literate by Means of the internet
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Exploring Means to Facilitate Software Debugging
In this thesis, several aspects of software debugging from automated crash reproduction to bug report analysis and use of contracts have been studied.
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Plant Sciences
De missie van het Plant Sciences onderzoeksprogramma is om bij te dragen aan de duurzame productie van gewassen van hoge kwaliteit, bloemen en hoogwaardige producten met een biologische basis. Dit wordt gerealiseerd door het opdoen van fundamentele kennis over biologische processen omtrent de ontwikkeling…
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Metabolomic characterization of plant exudates and their correlation with plant defense systems
Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.
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Hoe overleven planten?
Voor groep 4/5 basisschool.
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Soil legacy effects on aboveground plant-insect interactions
In this thesis, the role of plant-mediated soil legacy effects in shaping aboveground plant-insect interactions was investigated.
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Satellite remote sensing of plant functional diversity
Biodiversity enables ecosystems to thrive through the synergy of functional differences among organisms. While human well-being strongly depends on biodiversity-driven ecosystem services, human actions are also at the root of current unprecedented biodiversity declines.
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Impact of plant hormones on growth and development of actinobacteria
Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.
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Modulation of plant chemistry by rhizosphere bacteria
Plant-microbe interaction resulted in different physio/chemical responses by host plant and interacting rhizobacteria.
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Verspreiding van schimmels en zeldzame planten
Bepaalt de verspreiding van bodemschimmels zeldzaamheid van sommige planten?
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The rhizomicrobiome of Sorghum ; impact on plant growth and stress tolerance
The overall objectives of my thesis are to investigate the dynamics of the sorghum root microbiome and to explore the beneficial effects of the root microbiome on sorghum growth and stress tolerance.
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Plant occurrence in space and time: the importance of land use, habitat structure, and pollination mode
Plant diversity is essential for us and our planet as it sustains the stability of our ecosystems, provides vital materials and food to us and supports many ecosystem services.
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Approach to Markov Operators on Spaces of Measures by means of equicontinuity
The subject of this thesis, ‘Approach to Markov Operators on Spaces of Measures by Means of Equicontinuity’, combines an analytical and probabilistic approach to Markov operators.
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Plant-soil interactions determine ecosystem aboveground and belowground processes in primary dune ecosystems
Soil biodiversity is of great importance for the maintenance of multifunctionality in terrestrial ecosystems.
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General plant strategies and functions in wetlands: Global trait-based analyses
Wetland plants are distinguished from plants of other terrestrial ecosystems by their adaptations to specific habitat stresses, including waterlogged and flooding and the subsequent abundance of phytotoxic compounds.
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The role of AGC3 kinases and calmodulins in plant growth responses to abiotic signals
Promotor: Prof.dr. P. Hooykaas, Co-promotor: R. Offringa
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development of brain structure and executive functions: Greater variance than mean effects
In dit onderzoek wordt hersenontwikkeling voor het eerst direct gelinkt aan sekseverschillen en schoolprestatie. De resultaten ontkrachten de mythe dat jongens achterlopen in hersenontwikkeling.
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Learning from nature: using plant-soil feedback principles to improve growth and health of a horticultural crop
Plants and soils from natural ecosystems harbor great diversity of soil microorganisms, which could potentially contribute to the sustainability of horticulture. The knowledge about using wild plant species and soil from natural ecosystem to improve the crop health will advance the application of ecological…
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Calcium-dependent regulation of auxin transport in plant development
The plant hormone auxin regulates plant growth and development through polar cell-to-cell transport-generated maxima and minima. PIN FORMED (PIN) auxin efflux carriers determine the direction of this auxin flow through their asymmetric placement on the plasma membrane (PM).
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A monograph of the plant genus Trigonostemon Blume
Trigonostemon Blume is a plant genus in the family Euphorbiaceae comprising 59 species.
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Restoration of ditch bank plant diversity : the interaction between spatiotemporal patterns and agri-environmental management
Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster
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Impact of plant domestication on spermosphere and rhizosphere microbiome composition
Microbiome composition of the spermosphere and the rhizosphere of wild and modern bean accessions grown in an agricultural and a native soil from Colombia was characterized by metagenomics and cultivation-dependent approaches.
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Control of early plant development by light quality
This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants.
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interactions in Jacobaea vulgaris: zooming in and zooming out from a plant-soil feedback perspective
In this thesis, I focused on studying the above- and belowground interactions of J. vulgaris from a plant-soil feedback (hereafter, PSF) perspective. I investigated the temporal variation of negative PSF and examined the effects of root-associated bacteria on plant performance and aboveground herbiv…
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Green defense against thrips- Exploring natural products for early management of western flower thrips
As a contribution to the changing legislation and evolving societal attitudes concerning environmental issues, this project aims to enhance and manipulate the plants’ own natural defense mechanisms against western flower thrips (WFT).
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Parallel evolution in an invasive plant species: evolutionary changes in allocation to growth, defense, competitive ability and regrowth of invasive
Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling
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Exploring novel regulators and enzymes in salicylic acid-mediated plant defense
Salicylic acid (SA) is a plant hormone, which is involved in the defense responses to pathogens and to abiotic stress, and in the regulation of plant growth and development.
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Control of Western flower thrips through jasmonate-triggered plant immunity
We showed that constitutive and inducible chemical and morphological defenses against Western flower thrips differ between tomato and chrysanthemum plants.
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Mapping for meaning: using concept maps to integrate clinical and basic sciences in medical education
Het onderwerp van dit proefschrift is integratie van klinische kennis en kennis van de basisvakken in het medisch onderwijs en de rol die concept maps kunnen spelen in het expliciet maken van deze zogenoemde verticale integratie.
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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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A meta-analysis of wetland plant traits in relation to the strategies of wetland plants and the impacts on ecosystem functioning
What are trait-trait relationships in wetlands? To what extent the so-called leaf economics traits deviate from terrestrial ecosystems? How traits specific to wetland plant relate to plant strategies? What’s the relationship between wetland plant traits to the ecosystem functioning (e.g. productivity,…
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membrane system : an ancestral model for plasma membrane transport in plant cells
Multicellular giant algae Chara species have been widely used in physiological studies for decades.
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The impact of sustainable forest management on plant and bird diversity in East Kalimantan, Indonesia
Promotor: G.R. de Snoo, Co-promotor: H.H. de Iongh, C.J.M. Musters
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More JAZ in the orchestration of jasmonate-mediated plant defense
Prof.dr. J. Memelink
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From the root of variation: A metabolomics perspective to plant soil-feedback
By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.
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What's mine is yours and what yours is mine: Teacher communities as a means to increase adoption of Open Educational Resources in curricula?
Er zijn wereldwijd vele open (leer)materialen beschikbaar, maar deze worden nog niet of zeer beperkt gebruikt in het onderwijs.
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Ook planten hebben wel eens burenruzie
Herstel van de natuur op uitgeputte landbouwgrond en in natuurgebieden verloopt moeizaam. ‘Bodemtransplantatie’ kan mogelijk uitkomst bieden. Dat betoogt Martijn Bezemer, hoogleraar Ecologie van Plant-Microbe-Insect interacties. Oratie op 18 december.
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Regulation of the arabidopsis AGC kinase PINOID by PDK1 and the microtubule cytoskeleton
Plants, are sessile organisms, have developed strategies to adapt to changes in their environment, in part by altering their growth and development.
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Ellen Cieraad
Wiskunde en Natuurwetenschappen
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Levensverlengend gen bij planten ontdekt
Oogst na oogst binnenhalen van rijstveld, zonder nieuwe rijstplanten te zetten? Door een ontdekking komt dit scenario misschien wel dichterbij. Leidse wetenschappers hebben een gen ontdekt waarmee ze eenjarige planten na het bloeien opnieuw laten groeien, in plaats van dat de planten sterven. Publicatie…
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Wim van Anrooij
Faculteit der Geesteswetenschappen
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Tressia Chikodza
Wiskunde en Natuurwetenschappen
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Nieuwe planten produceren zonder zaaien
Zonder een gewas opnieuw te zaaien toch nakomelingen produceren, die zelfs groter kunnen zijn dan de ouderplant. Volgens Leidse onderzoekers is dat mogelijk door het overstimuleren van één gen. Daarmee verjongt een cel en gaat deze terug naar de embryonale fase.
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Specialistische planten mogelijk minder kwetsbaar dan gedacht
Planten die door minder diersoorten worden bestoven, zijn mogelijk minder kwetsbaar voor verandering dan gedacht. Dat ontdekte Saskia Klumpers in de Rocky Mountains in Colorado. Promotie op 15 december.
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Peter Klinkhamer over verdedigende planten nabootsen
In het kader van de Nationale Wetenschapsagenda (NWA) ontving hoogleraar Peter Klinkhamer een beurs voor onderzoek naar verdedigingsmechanismen bij planten, en hoe die nagebootst kunnen worden om planten te beschermen. Hij vertelt erover bij BNR Nieuwsradio.
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Hulp tegen uitdroging? Gen laat plant verhouten
‘Dit was een ontdekking die we niet hadden zien aankomen,’ vertelt Remko Offringa, hoogleraar ontwikkelingsgenetica van planten. Vandaag publiceert hij in Current Biology een nieuwe functie van een veelzijdig gen: het maakt voor planten het verschil tussen een kruidachtige of een verhoute stengel.…
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Mysterieuze planten vinden hun oorsprong op oercontinent
De geheimzinnige tropische planten van de familie Corsiaceae zijn miljoenen jaren geleden ontstaan op het oercontinent Gondwana. Dit concludeert Constantijn Mennes van de Universiteit Leiden in een artikel in het Journal of Biogeography.
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Marieke Elfferich
Wiskunde en Natuurwetenschappen
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Waardoor groeit een plant naar het licht?
Zet een plant in de vensterbank en hij zal binnen enkele uren naar het licht gegroeid zijn. Voor het eerst is dit mechanisme in planten op moleculair niveau in kaart gebracht door Leidse biologen en onderzoekers uit Gent en Lausanne. Ze publiceerden hierover in het prestigieuze Nature Cell Biology.
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Vacancy: PhD "Libraries as Links in Learning: Making the Meaning of Manuscripts"
Leiden University Centre for the Arts in Society (LUCAS) invites applications for a PhD position within the project ‘Libraries as Links in Learning: Making the Meaning of Manuscripts’ (1.0 fte, 4 years). The PhD candidate will track changing professional and scholarly practices and attitudes towards…