How presence, abundance and enzymatic activities of AM and EM fungi differently affect soil carbon sequestration processes?

To what extent did The Netherlands' attitude towards European integration change after the 2005 referendum on the European Constitution?

Our focus is to optimize the fungal cell wall to both increase chitin production and chitin extractability.

Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.

Our object is to identify and characterize transcription factors involved in lignocellulosic biomass degradation in the filamentous fungus Aspergillus niger.

Natural vanilla flavor is one of the most important in the world. However, the cost of this flavor is expensive. Production of this flavor by alternative methods, could reduce the cost.

Two bacterial species team up inside the plant root system to rescue their host from fungal infection. This was discovered by a team of microbiologists and bioinformaticians from the Netherlands Institute of Ecology, Wageningen University, and the Institute of Biology Leiden. They also identified the…

An organized overview of the current global fungal diversity, that is what Irene Martorelli and colleagues try to achieve with the new MycoDiversity Database (MDDB) she builds in collaboration with Naturalis Biodiversity Center. The new database will make it easier and quicker to observe which fungi…

Promotor: E.F. Smets, Co-promotor: J. Geml

Fungal food spoilage often starts with a contamination with spores. Experimental data strongly indicate the existence of subpopulations of spores with different levels of resistance to preservation methods.

This project intends to provide the required knowledgebase for the design of novel mild intervention protocols to prevent fungal food spoilage.

Promotor: E.F. Smets Co-promotor: J. Geml

How soil microbial composition impacts structure and composition of the aboveground plant and animal communities?

If a young person from a migrant background climbs the social ladder despite internship discrimination, the exclusion often gets worse. It is only when we acknowledge these problems that we can resolve them, say Nadia Bouras and Tikho Ong, who are both experiential and academic experts. ‘Racism and…

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

This project aims to further understand the molecular details related to the biosynthesis and function of Galf containing glycoconjugates in fungal Aspergillus spp.

Promotores: Prof.dr. H. van Veen & Prof.dr. W. de Boer (Wageningen University)

The mycorrhizal symbiosis is among the most widespread species interactions on Earth⁠. This thesis focuses on orchid mycorrhiza, a unique mycorrhizal type that has caught scientists’ attention for centuries⁠.

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

The work described in this Thesis is focused on the assembly of oligosaccharide fragments derived from a fungal polysaccharide, galactosaminogalactan (GAG) and fragments of the exopolysaccharide Pel, generated by Pseudomonas aeruginosa.

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

Fungal infections pose a significant threat to individuals with compromised immune systems and despite advancements in diagnosis and treatment, they continue to jeopardize patient’s health.

Uncover novel antimicrobials with prospective health benefits for sea turtles.

China wordt steeds assertiever in zijn relaties met andere landen, maar achter dit beeld gaat een opmerkelijk diverse maatschappij en politieke realiteit schuil die tal van aanknopingspunten biedt voor samenwerking en verdere integratie van China in de wereld. In China een gids voor de 21e eeuw past…

Microbial Sciences' contribution to the Bioactive Molecules research theme is to discover new bioactive molecules and enzymes and unravel their mechanisms of action, regulatory networks, and the (bio)synthetic pathways required for their production.

In the research programme Microbial Sciences we perform state-of-the-art research in the field of biotechnology and microbial sciences.

What are the host immune defence mechanisms that control intracellular infections and how are these subverted by pathogens?

Research aims: Identification of key genes involved in programming the cellular architecture of A. niger & Genetic engineering of A. niger in order to improve its secretory capacities and rheological behavior under industrial fermentation conditions.

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

In this PhD study, I aim to deepen our understanding of the influence of major mycorrhizal types, namely arbuscular mycorrhizae (AM) and ectomycorrhizae (EM), on the global soil carbon cycle and their potential distribution changes under future environmental shifts.

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.

Microbial Sciences'contribution to the Development & Disease research theme is to perform world-class research to understand cellular morphogenesis, growth, development and virulence of microbes.

Soil ecologists Emilia Hannula (Leiden) and Elly Morriën (UvA) received the Golden Medal of Teylers Tweede Genootschap on 5 November. They received the prize for their submission to a competition on sustainable soil management.

Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.

We aim to develop a drug-delivery method based on the production of biomolecules directly at the target site.

How and why latex bearing plants select specific chemical compounds for eco-chemical interactions with its biotic factors?

Promotors: Prof.dr. P.J. Punt, Prof.dr. C.A.M.J.J. van den Hondel

The Board of Examiners consists of scientific staff members of the IBL, Naturalis Biodiversity Center and CML, who teach in the biology programmes. They are appointed by the Board of the Faculty of Science and act independently from the research institutes. The responsibilities of the board include…

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…

Promotor: J.A. van Veen, Co-promotor: E.E. Kuramae

Can we develop new enzymes and cell factories to upgrade current enzyme cocktails towards complete degradation of biomass?

How do plants lure microscopically small 'support teams' into their roots for protection against diseases? And what functions are activated in the microbes and the plants?

Leids onderzoek naar bestraffing komt tot stand uit verschillende disciplines. Het onderzoeksproject kent een juridische, criminologische, sociaalwetenschappelijke en filosofische invalshoek.

On the basis of the characteristic aspects of a picture, certain computers can tell us what the picture is showing. They can learn this in the same way that young children are able to learn to recognize images. Further improving these techniques opens the way to a whole range of new applications. Biology…

Host-Microbe Interactions is one of the four research themes of the Institute of Biology Leiden.