1,898 search results for “plant formation” in the Public website
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Ten thousand types of plant outgrowths bundled
For nine years he worked on the three-volume standard work Plant Galls of Europe. It yielded 2300 pages about 10,000 species of European galls, abnormal outgrowths in plants caused by parasites. Hans Roskam from the Institute of Biology Leiden: ‘The abundance of galls says something about the natural…
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Asynchrony among plant communities stabilises ecosystem
Fluctuations in individual plant communities contribute to the stability of an ecosystem as a whole, a study published in Ecology Letters shows. Nadia Soudzilovskaia and colleagues for the first time used data from plant communities across five continents to prove this hypothesis.
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Wanted: bacteria that allow plants to flourish
Plants love favourable microbes such as bacteria and fungi: they grow better and become healthier. Jos Raaijmakers, Professor of Microbial Ecology, is in search of the right microbes to be used in agriculture. Inaugural lecture 13 November.
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“Principles of Plant-Microbe Interactions”
Emeritus Professor Ben Lugtenberg edited a book on “Principles of Plant-Microbe Interactions” together with Paul Hooykaas, Eddy van der Meijden and Jos Raaijmakers, all from the IBL.
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New light on innate plant immunity
Plants are able to resist a pathogen’s attack by a dual innate immune system. The relationship between the two pathways was not clear, but it turns out that they mutually potentiate each other, as assistant professor Pingtao Ding (Institute of Biology Leiden) and colleagues (The Sainsbury Laboratory,…
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reduce the barrier of stratum corneum lipid membranes by enhancing the formation of a hexagonal lateral packing
The effectiveness of the skin barrier underlies the outer layer of the skin: the stratum corneum (SC). However, in several skin diseases this barrier is impaired. In two inflammatory skin diseases, atopic eczema and Netherton syndrome, an increased level of monounsaturated fatty acids (MUFAs) has been…
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Bacteria inside plant roots battle fungal disease
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…
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New classification for tropical plant group Phyllanthus
There is much wrong with the taxonomy of the plant genus Phyllanthus. Roderick Bouman of the Hortus botanicus Leiden has developed a new phylogeny for Phyllanthus and exposes the evolution of the plant genus. Publication in TAXON.
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Arabidopsis AGC3 kinases and PIN plasma membrane abundance
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…
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Neanderthals on cold steppes also ate plants
Neanderthals in cold regions probably ate a lot more vegetable food than was previously thought. This is what archaeologist Robert Power has discovered based on new research on ancient Neanderthal dental plaque. PhD defence 1 November.
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polymeric micelles based on polypept(o)ides: from secondary structure formation of polypeptides to functional cross-linking strategies for polymeric
This thesis aimed to investigate core cross-linked polymeric micelles (CCPMs) and expand their potential for the delivery of hydrophobic drugs and co-factors.
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Unlocking the doors of the Leiden treasure rooms
Which plants are depicted, described or collected in these century-old objects? Who made these objects, where and for what purpose? What is their scientific and societal relevance today?
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Dian Triastari Armanda
Science
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Kiki Spaninks
Science
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Peng Sun
Science
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Barbara Gravendeel
Science
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Kevin Bretscher
Science
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Marieke Elfferich
Science
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Sofia Fernandes Gomes
Science
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Early Modernity Matters
This research network aims to promote cross-regional collaboration in the field of cultural history in early modern Asia at the intersections of visual, material, textual and aural culture.
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Ubar Kampung
The Sundanese people, the largest ethnic group in West Java, have been using traditional medicine for a long time. Known as ubar kampung, Sundanese indigenous knowledge, beliefs and practices of traditional medicine are based on local people’s knowledge and use of Medicinal, Aromatic, and Cosmetic (MAC)…
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Evolutionary diversification of Nepenthes (Nepenthaceae)
Promotor: Erik F. Smets, Co-promotores: Barbara Gravendeel, Niels Raes
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Martijn Bezemer
Science
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If we do nothing, more plants will go extinct
A wide range of plant species is essential to our earth because of the different materials and foods these plants provide. But plant diversity has decreased drastically in recent decades. PhD candidate Kaixuan Pan explains what we can do to increase it once again.
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Break-through in the genetic modification of plants
A collaboration between the IBL and LUMC has resulted in the discovery that the polymerase theta enzyme is essential for the integration of Agrobacterium T-DNA into the genome of plants. The finding means a break-through for the development of more efficient systems for targeted genome modification…
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Specialised plants may not be as vulnerable as was thought
Plants that are pollinated by fewer species of animal may be less vulnerable to change than was thought. This is what Saskia Klumpers discovered in the Rocky Mountains in Colorado. She will be awarded a PhD on 15 December.
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Hortus Leiden helps to protect plant diversity around the world
The Global Strategy for Plant Conservation, a world-wide effort by the botanist and plant protection community, is making considerable progress in protecting plant diversity around the world, a new report says. The Hortus botanicus Leiden is one of the partners of the project.
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How do plants protect themselves against too much sunlight?
That a switching protein plays a role in protecting a plant from too much sunlight was already known, but how exactly was not yet understood. The research group of Anjali Pandit has now discovered that this protein changes shape when there is too much sunlight. The results have been published in Nature…
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New database reveals plants' secret relationships with fungi
Leiden researchers have compiled information collected by scientists over the past 120 years into a database of plant-fungal interactions. This important biological data is now freely available for researchers and nature conservationists. Publication in New Phytologist.
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Newly discovered plant species store manganese in leaves
Leiden scientists have discovered a new plant genus with two new species at a potential nickel mine site in Indonesia. Remarkable characteristic of the plants: they store manganese in their leaves.
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Luis Salome Abarca about plant chemicals and the Hortus botanicus
What chemicals do plants have available, and what happens if they use them when faced with bacteria or fungi? That is what PhD candidate Luis Salomé Abarca is keen to learn. He studies plants’ survival and their use of chemical components in communication and defence. Salomé Abarca works at the Natural…
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Kearifan Kesehatan Lokal: indigenous medical knowledge and practice for integrated nursing of the elderly with cardiovascular disease in Sumedang
The different kinds of cultural perspectives on health and disease of the participants are related to their knowledge, beliefs, values and practices manifested in various forms of lifestyle in Indonesia. The cultural diversity of the population is also related to differences in health behaviour.
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Construction of vast plastics plant by Shell: 'very painful'
Shell, our country's largest company, is constructing a vast plastics plant in the United States. And it is doing so at a time when the European Union, led by the Netherlands, is launching a major pact to combat use of plastic.
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Thirsty power plants: the water footprint of generating electricity
To generate electricity, power plants use huge amounts of water. In Europe and the United States, generating electricity is accountable for 40% of the total water withdrawal. PhD candidate Industrial Ecology Yi Jin devoted his research to the water footprint of power plants and the impact on the environment.…
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From midplane to planets : the chemical fingerprint of a disk
This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.
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Rise and shine: the earliest red galaxies in the universe
Labbe
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Small scale kinematics of massive star-forming cores
Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: M.R. Hogerheijde
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Democratization and political terrorism: The formation and destruction of the two-party system in the Red River Valley of Louisiana, 1865-1868
The project examines the political conflict in the Red River Valley of Louisiana between the majority-black Republican Party and the overwhelmingly white Democratic Party by studying the composition and actions of each party.
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Abstract submission
Abstracts can be submitted only if you are registered for the conference, including the required payment.
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Droplet formation caught on camera
Those pesky raindrops that get you wet on your way to work, are formed high up in the sky from clouds of water vapour. The process of nucleation describes the way this happens. Edgar Blokhuis of the Leiden Institute of Chemistry developed a theory to describe this transition more precisely. Chemists…
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Monsters in the Deep: Using simulations to understand the excess baryonic mass in the centres of high-mass, early-type galaxies
This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…
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MYC transcription factors: masters in the regulation of jasmonate biosynthesis in Arabidopsis thaliana
Promotor: J.M. Memelink
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Non-target effects of GM potato: an eco-metabolomics approach
Promotors: Prof.dr. P.G.L. Klinkhamer, Prof.dr. P.M. Brakefield
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Capturing polarised light in the search for alien plants
A new way to decipher the light from distant worlds could give us unmistakable evidence of extraterrestrial photosynthesis, and maybe alien plants, finds astronomy author Colin Stuart in the New Scientist. In his article, he describes the work of the group led by Leiden astronomer Rob van Holstein.…
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Anticipated format of the online ICEHL
The ICEHL committee is currently exploring the options for online formats of ICEHL.
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Dutch cabinet formation: how are we going to achieve the impossible?
In his report, Dutch cabinet negotiator Kim Putters proposes the formation of a ‘programme cabinet’ and an outline agreement. The four political parties involved have agreed on this form of cabinet, and Putters therefore appears to have succeeded in his mission. Wim Voermans, Professor of Constitutional…
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Planet formation starts before a star is fully grown
A team of European astronomers under Leiden leadership has discovered that dust particles around a star already coagulate before the star is fully grown. These agglomerated dust particles are the first step in the formation of planets. The research publish their discovery in the journal of Nature As…
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Leiden researchers depict the formation of galaxies
An international team of astronomers, with researchers at Leiden Observatory playing a leading role, has mapped the fuel for galaxy formation in the iconic Hubble Ultra Deep Field. The results of the research have been accepted for publication in The Astrophysical Journal.
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Impact of insect herbivory and microbial inoculants on the rhizosphere microbiome and volatilome
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…
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Jiaxin Zhang
Science