The AT-Hook Nuclear Localized 15 (AHL15) gene belongs to a plant-specific gene family of DNA-binding proteins. Overexpression of AHL15 in Arabidopsis thaliana delays developmental phase transitions whereas its loss of function causes a slight acceleration.

Prof.dr. David Mabberley, als bijzonder hoogleraar Economische botanie verbonden aan het Nationaal Herbarium Nederland, heeft de prestigieuze zilveren Engler Medaille gekregen. Deze wordt uitgereikt voor de beste en belangrijkste publicatie op het gebied van de taxonomische en floristische plantkund…

Het onderzoeksprogramma ’Towards Biosolar Cells’ krijgt van het kabinet een budget van 25 miljoen euro. Het ministerie van Landbouw, Natuur en Voedselkwaliteit (LNV) heeft het programma voorgedragen omdat het onderzoek een bijdrage gaat leveren aan duurzame energie, verbetering van de voedselvoorziening…

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

Neanderthalers in koude gebieden consumeerden vermoedelijk veel meer plantaardig voedsel dan tot nu toe is aangenomen. Dat ontdekte archeoloog Robert Power dankzij nieuw tandsteenonderzoek. Promotie op 1 november.

Polycyclic aromatic hydrocarbons (PAHs) are the most abundant class of organic compounds in space. The PAH field evolves from the constant interaction between experimentalists, theorists, modellers and observers. While laboratory research and quantum chemical calculations together set up the molecular…

This research delves into a region of space known as the interstellar medium (ISM), which is essentially the area between the stars filled with gas and dust.

Promotor: Prof.dr. A.G.G.M. Tielens

A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.

Planets are formed in disks of gas and dust around young stars.

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L. Kaper (UvA)

In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.

This thesis is a (biased) journey through very different topics in astrophysics: quasars and new populations of active galactic nuclei, gravitational waves from merging black holes, and protoplanetary discs around young stars.

Promotor: Koen Kuijken Co-promotor: Henk Hoekstra

Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.

In this thesis we investigate cosmology and the large scale structure of the Universe using cosmological simulations.

Dark matter is one of the biggest mysteries of the Universe. Its properties cannot be explained with the known laws of physics and elementary particles.

Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…

Promotor: E. F. van Dishoeck, Co-promotor: C. Walsh

Promotor: Prof.dr. H.J.A. Rottgering

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

Sterrenkundigen onder leiding van John Tobin hebben dankzij nieuwe waarnemingen, verricht met de Amerikaanse Very Large Array-radiotelescoop (VLA), meer inzicht verkregen in het geboorteproces van meervoudige sterren.

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.

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…

The aim of this workshop is to open up the discussion of textual communities in Late Antiquity and the early Middle Ages, by offering a platform for PhD students from all over the world and from various disciplines to present their own research and discuss it with others. Deadline: April 23.

In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.

In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.

Annelies Schulte (39) weet heel goed wat ze wil. Meer uit planten halen, en die theoretische wetenschap gebruiken in de praktijk. Toen ze weg moest bij het plantenveredelingsbedrijf waar ze teamleider was, besloot ze voor zichzelf te beginnen. Sinds januari is zij ceo van de BV Explant Technologies.

Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven

The zoo of detected exoplanets reveals both the uniqueness of our own Solar System and the complexity of planetary system formation, sparking fundamental questions about how planetary systems form and evolve.

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…

Globally and regionally, biodiversity is declining and there are shifts in species’ occurrences and functional traits.

Europese burgers worden geconfronteerd met uitdagingen op het gebied van globalisering, migratie, technologische ontwikkelingen en klimaatverandering. Deze uitdagingen vergen het uiterste van onderlinge internationale en intergenerationele solidariteit, wat rechtstreeks betrekking heeft op de grondslagen…

Na decennia van intensieve landbouw staat het veenweidegebied onder druk. In het Polderlab werken wetenschappers, boeren en beleidsmakers samen aan toekomstbestendige vormen van landbouw. ‘Het is ongelooflijk hoe snel het systeem opveert zonder intensieve bemesting.’

De eerste index om de veiligheid, duurzaamheid en circulariteit van producten te meten, waarmee ze het EU-kader (SSbD) operationaliseren.

One of the effects of climate change is the phenomenon of desertification, a process that occurs in semi-arid and arid areas and causes land degradation as well as vegetation loss. Due to the lack of resources, vegetation self-organizes to sustain itself by forming large-scale spatial patterns.

Pseudomonas Aeruginosa is a Gram-negative bacterium which can form biofilms, increasing its resistance against antibiotics and the host immune system. Polysaccharides are an integral part of this biofilm, one of these polysaccharides is called Psl. PslG is a glycosidase, able to cleave this polysaccharide,…

Bacteria have the ability to alter their morphology in order to adapt to changing environments.

Promotor: Johan Kuiper, Co-promotor: Saskia C.A. de Jager

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

Vast, often populated, areas in dryland ecosystems face the dangers of desertification.

Arabische planten, lezingen en workshops rond de Arabische keuken en cultuur. Het 400-jarig bestaan van de leerstoel Arabisch in Leiden is aanleiding voor de Hortus botanicus om zich de hele zomer van zijn Arabische kant te tonen. Start: 25 mei.