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…

Bioenergy with carbon capture and storage (BECCS) is a promising method for removing carbon dioxide (CO2) from the atmosphere and simultaneously generating energy. Yet this method is controversial, as it may require a great deal of land and water. Researchers at Leiden University have now proposed a…

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…

How to improve the method in quantifying the combined effects of metal-based chemicals?

Supervisor: P.J.J. Hooykaas

Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: G.J. Herczeg

Remko Offringa has been appointed Professor in the field of Plant Developmental Genetics within the Faculty of Science at the Institute of Biology Leiden (IBL) from the 1st of April 2017. Offringa’s research focuses on the role of the plant hormone auxin in controlling plant growth and development,…

Can we use indigenous microbial rice communities to reduce methane production in agricultural settings?

The strange tropical plants belonging to the Corsiaceae family first emerged millions of years ago on the supercontinent of Gondwana. That is what Leiden University researcher Constantijn Mennes concludes in an article in the Journal of Biogeography.

Leiden and Austrian researchers have succeeded in further uncovering how a plant cell passes on the growth hormone auxin in a directional manner to the next cell. Three proteins that cling together in a bunch appear to be essential for this important transport process. ‘This discovery solves a crucial…

National Meat Free Week (Nationale Week Zonder Vlees, 7–13 March) is an initiative to reduce meat consumption. Assistant professor Paul Behrens is studying what impact a change in our food consumption would have on the world. What, according to him, are the main reasons to switch to a (mainly) plant-based…

How do the starchy botanical foodways reflect upon previous archaeological understandings in the northern and circum-Caribbean?

In 2005, the LEAD Programme organised and coordinated the International Exhibition on ‘Jamu: Medicinal Plants for Health and Conservation in Indonesia’ in collaboration with Universitas Padjadjaran (UNPAD) in Bandung, Indonesia, the Mediterranean Agronomic Institute of Chania (MAICH) in Chania, Crete,…

Almost 100 billion tons of CO₂ could be pulled out of the atmosphere by the end of the century. That is, if high-income countries switch to a plant-based diet. The double carbon profit of returning farmland to its natural state would equal about 14 years’ worth of agricultural emissions, researchers…

On the 10th of November, Sara Petrollino succesfully defended her PhD-thesis and graduated. LUCL congratulates Sara on this great result.

PhD student Thierry Rohmer received the Ernst Award 2009 of the Gesellschaft Deutscher Chemiker (GDCh) for his publication in the Proceedings of the National Academy of Science of the USA on the structure-function relation of the photoreceptor phytochrome. The prize was presented at the Annual Discussion…

The Dutch cabinet formation – a process that has now been underway for five months – is at a standstill for the time being. Formation discussion leaders Elbert Dijkgraaf and Richard van Zwol are due to publish their report in mid-May. Wim Voermans, Professor of Constitutional Law, updates listeners…

Professors Jos Raaijmakers (NIOO) and Gilles Van Wezel (IBL) received an STW Perspectief- grant of €3 million from the Dutch Technology Foundation and several supporting companies.

After decades of intensive farming, the peatland area is under pressure. Researchers, farmers and policymakers work together in the Polderlab to identify future-proof types of agriculture. ‘It’s unbelievable how quickly the system bounces back without intensive fertilisation.’

In Leiden University's Vision on Sustainability 2030, biodiversity (biological diversity) is an important focus in its teaching and research and on its campuses.

Accumulation of metals in economy and environment and its associated risks, within the Netherlands and the EU.

During the Leiden Science Family Day, you can take part in various workshops. You can also watch various demonstrations. Where will you go?

The Trio, a people living in Suriname and Brazil, are ‘masters of creation’. Their immense knowledge of nature and materials enables them to live in the jungle. Archaeologist Jimmy Mans follows the Trio.

Nature is a never-ending source of inspiration for the researchers at the Institute of Biology Leiden (IBL). Based on a better fundamental understanding of nature, they are able to seek solutions in the area of health and biodiversity. The theme of IBL is ‘Harnessing biodiversity for health.’

The research within the Food research programme at CML focuses on a transition towards sustainable food production and consumption systems. We investigate from a very small to a very large scale, at a local, national or international level. We do so by researching for example molecular tools, food systems,…

Many hot, rocky planets outside of our own solar system started out as large, gaseous Neptunes. This is what astronomers at Leiden University contend in a recent online publication.

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond

Pieter Omtzigt, leader of the ‘Nieuw Sociaal Contract’ (‘New Social Contract’) party, has withdrawn from talks to form a new Dutch government. Government finances are a divisive issue, and Ronald Plasterk’s decision to withhold documents on government finances seems to have particularly broken trust.…

Promotor: Prof.dr. A.G.G.M. Tielens, Prof.dr. C. Dominik (UvA)

Mathematical and computational analysis of the dynamics of polar transport of the plant hormone auxin.

Diverse types of exoplanets such as gas giants on close-in orbits (hot Jupiters) and young massive giants on wide orbits (super Jupiters), with no analogs in the Solar System, pose challenges but also opportunities to our understanding of planet formation and evolution.

The ALMA Local Expertise Group (Allegro) is located in the Leiden Observatory (Sterrewacht). Professor Ewine van Dishoeck: ‘The Netherlands has played an important role in establishing ALMA. Thanks to this subsidy, we can now reap the scientific benefits.'

The work presented in this thesis is based on ALMA surveys of protoplanetary disks in three star-forming regions: Lupus, OMC-2, and NGC 2024.

What is the role of auxin in the initiation and process of somatic embryogenesis?

The Basics and Applications to Plant Sciences will be held physical. See below for more information.

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

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

Which traits and/or trade-offs determine benefits of being deciduous or evergreen?

This article aims to provide a coherent foundation for empirical studies of interpersonal discussion on risk.