Biodiversity enables ecosystems to thrive through the synergy of functional differences among organisms. While human well-being strongly depends on biodiversity-driven ecosystem services, human actions are also at the root of current unprecedented biodiversity declines.

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

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

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.

The endophytic microbiota is a community of various microorganisms that reside in plant tissue. These microbes are known to promote plant health and resilience, and their members do not simply exist side by side.

Microbiome composition of the spermosphere and the rhizosphere of wild and modern bean accessions grown in an agricultural and a native soil from Colombia was characterized by metagenomics and cultivation-dependent approaches.

In light of climate change, it is crucial to determine whether plant species can adapt to future climates to avoid extinction. Plants adapt to various conditions by altering their functional traits, such as leaf size or photosynthetic rate. Some traits appear linked and vary together between species,…

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

De onderzoekers van het departement ‘World Archaeology’ van de Faculteit Archeologie richten zich in hun onderzoek op verschillende periodes en regio’s: van de oorsprong van de mens tot aan de Middeleeuwen en de moderne tijd, en van Azië tot Zuid-Amerika.

De masterspecialisatie Applied Archaeology bereidt je op een wetenschappelijk niveau voor op een professionele carrière in de archeologie. Deze unieke specialisatie is een samenwerkinging tussen Universiteit Leiden en Hogeschool Saxion.

Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster

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…

Als je het menselijk verleden bestudeert, kan dit je helpen om de maatschappelijke vraagstukken van tegenwoordig beter te begrijpen en op te lossen.

De onderzoeksgroep Digital Archaeology beheert twee computerlaboratoria voor verschillende doeleinden: een onderwijslab en een onderzoekslab.

Maak een reis door de geschiedenis en de toekomst van het leven op aarde.

De missie van het Plant Sciences onderzoeksprogramma is om bij te dragen aan de duurzame productie van gewassen van hoge kwaliteit, bloemen en hoogwaardige producten met een biologische basis. Dit wordt gerealiseerd door het opdoen van fundamentele kennis over biologische processen omtrent de ontwikkeling…

The Summer School History of the Book, organized by the Allard Pierson Museum, introduces a new course in English: Introduction to the Archaeology of the Book, taught by Prof. Malcolm Walsby (2-6 September 2024).

Salicylic acid (SA) is a plant hormone, which is involved in the defense responses to pathogens and to abiotic stress, and in the regulation of plant growth and development.

Voor groep 4/5 basisschool.

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

Plant diversity is essential for us and our planet as it sustains the stability of our ecosystems, provides vital materials and food to us and supports many ecosystem services.

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.

Soil biodiversity is of great importance for the maintenance of multifunctionality in terrestrial ecosystems.

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.

Promotor: Prof.dr. P. Hooykaas, Co-promotor: R. Offringa

Agrobacterium-mediated transformation (AMT) has abundantly been used for scientific research for identifying valuable traits.

This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants⁠.

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

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).

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

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…

The plant hormone auxin regulates plant growth and development through polar cell-to-cell transport-generated maxima and minima. PIN FORMED (PIN) auxin efflux carriers determine the direction of this auxin flow through their asymmetric placement on the plasma membrane (PM).

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

Plantaardige plakdruppels voor gewasbescherming tegen trips: Sommige planten zoals zonnedauw en tomaat beschermen zichzelf met plakkerige haartjes die geleedpotige herbivoren afstoten of zelfs kunnen vangen.

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

Multicellular giant algae Chara species have been widely used in physiological studies for decades.

Promotor: G.R. de Snoo, Co-promotor: H.H. de Iongh, C.J.M. Musters

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

De Iraakse archeologische site Nimrud werd kort geleden terugveroverd op IS. Maar wat nu te doen met de beschadigde resten? Bleda Düring sprak erover in Trouw.

Prof.dr. J. Memelink

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

This thesis focuses on the design and synthesis of activity-based probes and inhibitors targeting enzymes involved in the degradation of specific plant glycans.

Planten die door minder diersoorten worden bestoven, zijn mogelijk minder kwetsbaar voor verandering dan gedacht. Dat ontdekte Saskia Klumpers in de Rocky Mountains in Colorado. Promotie op 15 december.

Herstel van de natuur op uitgeputte landbouwgrond en in natuurgebieden verloopt moeizaam. ‘Bodemtransplantatie’ kan mogelijk uitkomst bieden. Dat betoogt Martijn Bezemer, hoogleraar Ecologie van Plant-Microbe-Insect interacties. Oratie op 18 december.

This collection of papers was compiled in celebration of the remarkable academic career of Professor Wil Roebroeks, who has established himself as one of Europe’s leading figures in Palaeolithic archaeology over the past three decades and founded the Human origins research group at Leiden University…

Planten houden van gunstige microben zoals bacteriën en schimmels: ze groeien beter en worden er gezonder van. Hoogleraar Microbiële Ecologie Jos Raaijmakers speurt naar de juiste microben die gebruikt kunnen worden door de landbouw. Oratie 13 november.

Planten kunnen de aanval van een ziekteverwekker weerstaan dankzij een tweeledig afweersysteem. De relatie tussen de twee afweerlijnen was nog niet duidelijk, maar nu blijkt dat ze elkaar versterken, zoals universitair docent Pingtao Ding (Instituut Biologie Leiden) en collega’s (Sainsbury Laboratory,…