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

Promotor: G.A. Persoon, Co-promotor: H.H. de Iongh

How were the Russians, under early modern conditions, able to incorporate this distant, undeveloped and, because frequent nomadic attacks, dangerous territory? And what role did the Kolyvan-Voskresensk plants play in this process?

Promotor: P.J.J. Hooykaas, Co-Promotor: E.J. van der Zaal

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

Promotor: Prof.dr. W.J.G.M. Peijnenburg

In this thesis, I focused on studying the above- and belowground interactions of J. vulgaris from a plant-soil feedback (hereafter, PSF) perspective. I investigated the temporal variation of negative PSF and examined the effects of root-associated bacteria on plant performance and aboveground herbiv…

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

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.

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…

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

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…

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

This thesis describes the functional analysis of the Arabidopsis AHL15 gene.

Freshwater is an important resource, but at a great risk of species decline due to habitat loss, pollution and over-exploitation, and invasive alien species.

Promotor: Prof.dr. P.G.L. Klinkhamer, Co-Promotor: T.J. de Jong

Sorghum (Sorghum bicolor) is a major cereal crop that millions of subsistence farmers in Sub-Saharan Africa (SSA) rely on. However, the scourging impact of the root parasitic weed Striga (Striga hermonthica, a.k.a. “witch-weed”) has remained a major constraint hampering the productivity of sorghum in…

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

Promotor: P.J.J. Hooykaas, Co-Promotores: P.B.F. Ouwerkerk, M. Wang

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

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.

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

Supervisor: P.J.J. Hooykaas

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

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

This thesis explores how bees and hoverflies are distributed across the Dutch landscape and how ecological and landscape factors shape their occurrence.

How do archaeologists test ideas about the evolution of the modern brain? Veni-researcher Geeske Langejans and then Master student Paul Kozowyk (Leiden University) prepared different Prehistoric glue recipes and tested these for strength in modern test machines at the Delft University of Technology.

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.

Op deze pagina vindt u de opnames van de online This Week's Discoveries vanaf 12 mei 2020 en een lijst sprekers vanaf oktober 2015.

Promotores: G.A. Persoon, H.H. de Iongh

This thesis presents the systematics, epidermal defense, and bioprospecting of wild orchids.

Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.

In recent decades, climate change has led to more frequent and severe drought events, causing serious consequences such as increased forest mortality and significant crop yield losses. Understanding how drought affects plants, especially economically important herbaceous species, is crucial for predicting…

In the Schouwburgstraat, LUGO is currently redesigning the back-garden in order to increase biodiversity and make it a more beautiful space. Throughout October 2023 until March 2024, we will be making changes to the garden with our team of volunteers.

Promotie

Welke planten in de Mediterrane tuin waren al bekend bij de oude Grieken en Romeinen, en hoe werden ze toegepast?

Een leefbare aarde. Meer biodiversiteit. En verstandig omgaan met resources. Bij het CML willen we impact maken met ons onderzoek én onderwijs. Op deze website lees je hoe we dat doen.

Op deze pagina vind je de opnames van de Tuesday Talks sinds april 2025. Ook de opnames van de voorloper van de Tuesday Talks, This Week’s Discoveries, zijn hier te vinden

Promotie

Investigating the intercultural connections that shaped practices of knowledge production in colonial Dutch Brazil.

Leidse biologen hebben aangetoond dat een gen dat aanwezig is in planten, dieren en gisten wel degelijk een belangrijke rol speelt in planten, al werd daar jaren anders over gedacht. Zonder het gen blijkt de ontwikkeling van vaatweefsel in planten niet goed op gang te komen. Publicatie in Nature Plants…

In de Nederlandse natuur verdwijnen plantensoorten die afhankelijk zijn van bestuiving door insecten. Milieuwetenschapper Kaixuan Pan toont dat aan na analyse van 87 jaar aan metingen van meer dan 365.000 locaties. Verschillende media in binnen- en buitenland berichtten over de studieresultaten. Hieronder…

Een nieuwe studie in Nature Plants heeft de belangrijkste ordeningsprincipes onderzocht die vegetatiegedrag bepalen. De inzichten uit deze studie kunnen worden gebruikt om de voorspellingen van klimaatverandering te verbeteren. De Leidse wetenschappers Peter van Bodegom en Nadia Soudzilovskaia zijn…