The Sundanese people, the largest ethnic group in West Java, have been using traditional medicine for a long time. Known as ubar kampung, Sundanese indigenous knowledge, beliefs and practices of traditional medicine are based on local people’s knowledge and use of Medicinal, Aromatic, and Cosmetic (MAC)…

This thesis provides an overview of the development of the Pair Configuration to Molecular Activity Coefficient (PAC-MAC) model.

Promotor: R. Verpoorte, Co-promotores: Y.H.Choi, N.R. Mustafa

The studies described in this thesis deal with glycosidases, in particular alpha-galactosidases.

Promotor: C.A.M.J.J. van den Hondel, Co-promotor: Sandra de Weert

Promotor: P.G.L. Klinkhamer, Co-Promotores: K. Vrieling, P.P.J. Mulder

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

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

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M. Bongards (Cologne University)

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

Promotor: E.F. Smets, Co-promotor: T.R. van Andel

This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).

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,…

Huub de Groot

Promotor: Erik F. Smets, Co-promotores: Barbara Gravendeel, Niels Raes

In het Nederlandse tv-programma 'NOS Amalia en Caribisch Nederland' vertelt Stacey over de impact van klimaatverandering op de kust, het koraal en de cultuur op Bonaire.

Hoe kan de methode om de gecombineerde effecten van metaal-gebaseerde chemische stoffetn te bepalen worden verbeterd?

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.

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

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

The plant hormone auxin plays a central role in the growth and development of plants. Auxin acts in a concentration dependent manner and polar cell-to-cell transport of this hormone determines its distribution in the tissues of plants. This polar auxin transport is mediated by several families of auxin…

Promotores: P.G.L. Klinkhamer, P.M. Brakefield, Co-Promotor: M. Bruinsma

Soil is a home for an unbelievable diversity and abundance of microbial life that is essential for supporting life on our planet.

Breeding for resistance becomes more and more important because we want to reduce the use of pesticides. A fast and cheap alternative can be to make use of morphological or chemical markers.

The rapidly increasing commercial application of metallic nanoparticles within products will inevitably enhance the amount of NPs being released into soil.

Promotor: Prof.dr. R. Verpoorte, Co-Promotor: Dr. Young Hae Choi

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

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).

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

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.

Increasing the efficiency of gene targeting (GT) as a genome editing tool in plants has been an important goal in plant biotechnology.

The research provides insight into disease behavior in both rural and semi-urban areas in Serengeti in Tanzania.

Mycorrhizas are symbiotic associations between soil fungi and most plant species.

Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.

Solar energy harnessed by plants and algae has great potential to be converted into biofuels for future generations.

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

The name ‘Jambi flora’ refers to fossil plants found as part of a rock formation from the Early Permian (296 million years old), located in the Jambi Province of Sumatra, Indonesia.

Agrobacterium tumefaciens, a gram-negative plant pathogen belonging to the family Rhizobiaceae, is the causative agent of crown gall disease, which can affect many plant species including agronomically important ones.

How the global distribution of vegetation stands dominated by arbuscular and ectomycorrhizal plants relate to principle aspects of belowground carbon accumulation processes?

Plants, are sessile organisms, have developed strategies to adapt to changes in their environment, in part by altering their growth and development.

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

Rapport in opdracht van het ministerie van Economische Zaken

Wiskunde en Natuurwetenschappen, Leiden Academic Centre for Drug Research (LACDR)

Promotor: P. J. J. Hooykaas Co-promotor: B. S de Pater

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.

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…

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…

In populations with a seed-bank, individuals can temporarily become dormant and refrain from reproduction until they can become active again. The repository of all dormant individuals in the population is called the seed-bank. Seed-banks are observed in many taxa, including plants, bacteria and other…