Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.

Het onderzoeksprogramma Industrial Ecology heeft als doel de ecologische transformatie naar duurzaamheid te ondersteunen van maatschappij en milieu. Het onderzoeksonderwerp is Industriële Ecologie in zijn breedste definitie, waaronder de analyse van milieusystemen en de integratie van de sociale en…

De tweejarige masteropleiding Industrial Ecology is een samenwerking tussen de Universiteit Leiden en de Technische Universiteit Delft De opleiding biedt een gereedschapskist voor duurzame ontwikkeling in de vorm van een systematische aanpak van door de mens veroorzaakte problemen. Hierbij worden technische,…

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…

Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling

Voor groep 4/5 basisschool.

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

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.

In this thesis, the role of plant-mediated soil legacy effects in shaping aboveground plant-insect interactions was investigated.

Promotor: E. Gittenberger, Co-promotores: L.P. van Ofwegen; B.W. Hoeksema

Promotor: Prof. dr. Arnold Tukker & Prof. dr. René Kemp (Maastricht University)

Plant-microbe interaction resulted in different physio/chemical responses by host plant and interacting rhizobacteria.

Bepaalt de verspreiding van bodemschimmels zeldzaamheid van sommige planten?

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.

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,…

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

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.

What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?

Plants and their pollinators form complex interaction networks. Within these networks, species differ widely in the number of species they interact with.

Promotor: Prof.dr. P. Hooykaas, Co-promotor: R. Offringa

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…

Trigonostemon Blume is a plant genus in the family Euphorbiaceae comprising 59 species.

Het eerste internationale masterprogramma in Industrial Ecology start in september 2011. Het gaat om een twee-jarig internationaal programma dat wordt georganiseerd door: University of Graz in Oostenrijk, Chalmers University of Technology in Göteborg, Zweden, de Universiteit Leiden en de Technische…

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).

Promotors: Prof.dr. G.R. de Snoo, Prof.dr. H. Leirs (Univ. Antwerpen)

Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster

Mycoheterotrophy is a particular mode of life in which plants obtain carbohydrates from their associated fungal partners, instead of by using photosynthesis.

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.

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.

We showed that constitutive and inducible chemical and morphological defenses against Western flower thrips differ between tomato and chrysanthemum plants.

Planten houden van gunstige microben zoals bacteriën en schimmels: ze groeien beter en worden er gezonder van. Hoogleraar Microbiële Ecologie Jos Raaijmakers speurt naar de juiste microben die gebruikt kunnen worden door de landbouw. Oratie 13 november.

Supervisor: P.J.J. Hooykaas Co-Supervisor: R. Offringa

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh

Multicellular giant algae Chara species have been widely used in physiological studies for decades.

What is movements and corridors of the Bornean pygmy elephant in Sebuku forest? What is the nature of human-elephant conflict in Nunukan District in time and space? What are the diets of the Bornean elephants related to crop raiding?

Promotor: G.R. de Snoo, Co-promotor: H.H. de Iongh, C.J.M. Musters

Prof.dr. J. Memelink

De masteropleiding Industrial Ecology is in 2004 gestart met 12 studenten en is inmiddels uitgegroeid naar een opleiding met 90 studenten uit 20 verschillende landen.

Do Ethiopian wolves change their diet and foraging strategy in the landscape under different land uses? How land use affect Afro-alpine rodent Communities? How important are Afro-alpine natural resources utilisation for local livelihoods? What is the human perception of conflict in the Afro-alpine a…

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.

Twee onderzoekers uit de onderzoeksgroep Plant ecology and Phytochemistry van het Instituut Biologie Leiden hebben beurs gekregen van de Stichting Technologische Wetenschappen.

In de faculteitskamer van Wiskunde en Natuurwetenschappen in het Academiegebouw werden op 31 maart de eerste twee masterdiploma's Industrial Ecology uitgereikt aan Elias de Valk en Gerald Wegh. 'Ik kan nu alle kanten uit in de duurzaamheidssector', zegt De Valk, die de allereerste was die de interdisciplinaire…

How can we quantify the density of species within a community through environmental DNA concentrations?

What is the population size/structure and distribution of tiger and leopard inside the Bardia National Park (BNP) compared with the population outside? What is the movement and home range and conflict pattern in time and space of tigers and leopards inside the BNP compared with outside? What constitutes…

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Co-promotor: H.H. de Iongh