781 search results for “soil bacteria” in the Public website
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Bacteria under stress can live without cell wall
Thread-like bacteria make cells that no longer have a cell wall under the influence of osmotic stress. A remarkable discovery, since the cell wall serves as a protection barrier for bacteria. It could also help to explain how pathogenic bacteria can hide in our body from our immune system. A team of…
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Thousands of images of frozen bacteria
How do bacteria sense and adapt to their environment? Ariane Briegel, Professor of Ultrastructural Biology, is intrigued by this question. Using new techniques, she produces three-dimensional images of bacteria that provide us with new clues about their sensory system.
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Detecting pediatric cancer with bacteria
Ariane Briegel wants to use bacteria to detect cancer at an early stage. Together with postdoc Alise Muok, she is developing a method to quickly and cheaply test the urine of patients for the presence of suspicious molecules. They receive a grant of approximately 150,000 euros from the Dutch Cancer…
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Best Spanish doctoral thesis in Soil science in 2015 for CML researcher Daniel Arenas Lago
The Spanish Society of Soil Science has chosen as the best thesis of 2015 (call 2016) in Spain to the CML-researcher Daniel Arenas Lago, for his research at the University of Vigo that expands and deepens in new knowledge about adsorption and retention of heavy metals in soils, an issue increasingly…
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Difference in microbiota between organic and conventional dairy farms
Bacteria and fungi on organic dairy farms are significantly different from those on conventional farms. That was discovered by postdoc researcher Sofia Gomes and her supervisors Nadia Soudzilovskaia and Peter van Bodegom in collaboration with the Louis Bolk Institute and Naturalis Biodiversity Centre.…
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Controlling growth and morphogenesis of the industrial enzyme producer Streptomyces lividans
Promotor: Prof.dr. G.P. van Wezel, Co-Promotor: E. Vijgenboom
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PROTEOMINING: a novel proteomics-based pipeline for drug and enzyme discovery in filamentous actinomycetes
Can a new proteomics workflow be developed to link genes and gene clusters to bioactive molecules, identify novel compounds and enhance the production in the Streptomyces lividans enzyme?
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Streptomyces as cell factories
We aim to engineer streptomycetes to fully exploit their potential for natural product productions, by a rational design and evolution approach.
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Healthy soil for a healthy gut
How does the soil we grow our vegetables in, affects the health of our gut? And does a healthy soil gives crops a better quality and taste? These are some of the questions Soil ecologist Emilia Hannula and a big consortium will work on. With an NWO-KIC grant of 1.8 million, CML, IBL, FGGA, the LUMC,…
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Researchers tackle antibiotic-resistant bacteria
When a bacterium becomes more resistant to one antibiotic, it sometimes becomes more sensitive to another. To better understand this interaction, researchers from the Leiden Institute of Biology (IBL) and the Leiden Academic Center for Drug Research (LACDR) under supervision of Daniel Rozen and Coen…
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An artistic view on the hidden fungi in the soil
Music from a compostable cello, photographs and scents of fungi and a woven tapestry. With her upcoming multimedia project Super Organism, visual artist Suzette Bousema enables people to experience the underground fungal network with all their senses. Environmental scientist Nadia Soudzilovskaia and…
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Farzad Aslani
Science
f.aslani@biology.leidenuniv.nl | +31 71 527 2727
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Plant stress increases: New research with bacteria offers hope
Soil that is too wet, or too dry. Or with a lot or few nutrients. Due to climate change, the differences are becoming bigger, and plants must increasingly be able to adapt to survive. How do you make plants more stress-resistant? For this purpose, researchers from Leiden, along with other universities,…
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Fighting diseases with good bacteria
Researchers from the Institute of Biology Leiden have discovered how good intestinal bacteria regulate our innate immune system. This surprising discovery could make it possible to treat diseases related to inflammation, such as diabetes and colitis, with a cocktail of good bacteria. Publication in…
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A clear picture of bacteria
Freezing bacteria super fast to gain a true-to-nature image of the internal and external structure. Ariane Briegel Professor of Ultrastructural Biology came to Leiden specially to carry out this research. Leiden University is one of the few institutes in the world to have the necessary equipment. Inaugural…
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Search and rescue: tackling antibiotic resistance with chemistry
With the rise of multi-drug resistant bacterial pathogens, the possibility of a post-antibiotic world is quickly becoming reality.
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Sophie Planchenault
Science
s.j.planchenault@cml.leidenuniv.nl | +31 71 527 2727
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of Human Mobility and Farming Systems and Impacts on Biodiversity and Soil Quality in the Western Highlands of Cameroon
Promotors: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Prof.dr.ir. H.H. de Iongh
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Bacteria that degrade plastic: Unilever Research Prize for master’s student Jo-Anne Verschoor
Jo-Anne Verschoor wins the Unilever Research Prize 2020. The master's student in Biology developed a method to test whether bacteria are capable of degrading plastic. Verschoor: 'Using specific enzymes from these bacteria, we may be able to efficiently recycle plastic in the future.
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Digging deeper into Soils, Sediment and Society with Peter Houben
A group of 12 LUC students went to the Eifel mountains for the annual field trip within the course 'Soils, Sediment, and Society' of Dr. Peter Houben. Dr. Peter Houben is Assistant Professor of Environmental Earth Sciences and Sustainability at Leiden University College The Hague.
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'Soil is the basis of our lives' - Martijn Bezemer nominated for Huibregtsen Prize 2023
Directing soil life and thereby influencing what grows above ground: that is the expertise of Leiden biologist Martijn Bezemer and his colleague Wim van der Putten (NIOO-KNAW). Their research on soil transplants has been nominated for the Huibregtsen Prize 2023. This prize goes to innovative research…
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Children become bacteria to learn about antibiotics
Last Friday the global Antibiotics Awareness Week begun: an entire week dedicated to antibiotic use. Antibiotics researchers from the LACDR therefore set out to tell primary school pupils about their research. Through role-playing, pupils were drawn into the world of antibiotics: 'Can the teacher not…
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How cholera bacteria make people so sick
The enormous adaptability of the cholera bacterium explains why it is able to claim so many victims. Professor Ariane Briegel from the Leiden Institute of Biology has now discovered that this adaptability is due to rapid sensory changes in the bacterium. Publication in PNAS.
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Professor Lars Jeuken wants to use bacteria for sustainable fuel
On 1 August, Lars Jeuken started work as Professor of Biophysical Chemistry at the Leiden Institute of Chemistry (LIC). His research is at the intersection of biology and chemistry, but also involves physics and nanotechnology. Jeuken: ‘By linking nanoparticles to proteins and bacteria, we want to convert…
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Caught in living cells: how bacteria regulate their genes to defend themselves
For the first time, it was shown in living cells how the bacterium E. coli regulates genes that help it survive in a new environment. Biochemist Fatema Zahra Rashid managed to do this using a technique she fine-tuned. Her research into changes in 3-dimensional chromosome structure offers clues for ways…
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Replicated molecules reveal hiding method of bacteria
Specific fatty acid-sugar molecules allow leprosy bacteria, among others, to hide from our immune system. How exactly is not entirely clear. Hessel van Dijk, who received his PhD on 13 October, replicated the molecules, helping to solve a piece of the puzzle. Van Dijk's dissertation is titled: Synthesis…
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Artificial microswimmers work together like bacteria
Microscopic swimmers such as bacteria do not always swim alone. There are advantages to exchanging information and cooperating. Stefania Ketzetzi and colleagues now show in Nature Communications that human-made microswimmers, too, can cooperate.
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Global distribution patterns of distinct mycorrhizal types and ecological drivers of these patterns
What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?
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Taking a closer look at resistance to tuberculosis bacteria
Though tuberculosis can be cured today, new resistant strains of the bacteria are becoming a growing problem in the medical world. Biologist Annemarie Meijer and her colleagues are studying resistance to this disease. Their research is already yielding several interesting clues that could help the development…
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Disrupted movement makes macrophages more lethal to tuberculosis bacteria
Macrophages – the front line of our immune system – protect us from infections. But in the case of the tuberculosis bacteria, this often goes wrong. The group of Annemarie Meijer from the Leiden Institute of Biology has now discovered that macrophages in zebrafish are better able to eliminate tuberculosis…
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Bacteria without cell wall gobble up DNA from environment
A bacterium hiding from the immune system and picking up bits of DNA from its environment. The result: gaining new traits, such as better protection against antibiotics. Fortunately, we have not found such a damning scenario yet. However, PhD student Renée Kapteijn did find the first clues, which…
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Clever variant of antibiotic bypasses resistance in bacteria
Biological chemist Nathaniel Martin is going to test an alternative antibiotic that can combat common resistant bacteria such as MRSA. For this purpose, he will receive 350,000 euros from the NWO's NACTAR programme. ‘We want to know how safe and effective our antibiotic is in a realistic situation.’
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Bacteria growing on light and air: a revolution for biotechnology?
Research to experiment with bacteria that grow like plants has been granted the NWO XS grant. These bacteria use light and carbon dioxide to grow, and will be designed especially for use in the biotechnological field. Tijn Delzenne and his supervisor Dennis Claessen can spend 50.000 euros on the exp…
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Collaborating bacteria sacrifice themselves for the greater good
Like ants, termites and bees, some bacteria work together as a multicellular group. There is a strict division of labour in such colonies, to make the group more resilient to the outside world. Now researchers have found that some parts of the bacterial colony can take ‘for the greater good’ to a whole…
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Impact of plant hormones on growth and development of actinobacteria
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.
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New murals depict archaeological profiles of Dutch soil
On September 5, at the festive opening of the Faculty Year, a range of new murals will be officially presented in the Van Steenis’ Reuvens Hall. The wall paintings reflect a variety of Dutch soil stratigraphies, from Oss to burial mounds. Aside from being a striking new addition to our Faculty building,…
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Soil samples show impact of Columbus's arrival
After Columbus landed on the island of Hispaniola (present-day Haiti and the Dominican Republic), the farming culture of the indigenous people quickly disappeared. This has been demonstrated by Leiden archaeologists and colleagues from other universities on the basis of soil research. Publication in…
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Sofia Fernandes Gomes
Science
s.i.fernandes.gomes@biology.leidenuniv.nl | +31 71 527 5118
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Attacking tuberculosis bacteria: an interview with Mónica Varela
This summer postdoctoral researcher Mónica Varela from the Institute of Biology Leiden was awarded a Veni grant from the Dutch Research Council (NWO). Six questions about her project and hopes for the future.
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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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Martijn Bezemer
Science
t.m.bezemer@biology.leidenuniv.nl | +31 71 527 5158
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Emerging approaches to study cell-cell interactions
The aim of this thesis is to study cell-cell interactions and the development of an assay to explore and quantify the exchange of membrane compounds.
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New fundamental insight into the battle against bacteria
The intestinal bacterium E. coli can adapt to changes in its surroundings. Leiden scientists have discovered how the H-NS protein makes this possible. This new knowledge can be an important starting point in combatting bacteria and diseases such as peritonitis. Publication 2 October in the journal e…
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Pascal Nuijten
Science
p.nuijten@biology.leidenuniv.nl | +31 71 527 4384
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Adam Ossowicki
Science
a.s.ossowicki@biology.leidenuniv.nl | +31 71 527 2727
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Science and mission: Jan Willem Erisman in the European Soil Mission Board
Even as a child, Jan Willem Erisman wanted to make things better. As a professor Environmental sustainability, he is therefore also very active outside the university. He is known as the nitrogen professor: in the media all the way to the House of Representatives, he explains the nitrogen problem. Recently,…
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Major European research into microplastics in agricultural soils: grant for Thijs Bosker
Thijs Bosker, Associate Professor of Environmental Sciences at Leiden University College (LUC) and the Institute of Environmental Sciences (CML), has received funding as part of a large consortium to study the impacts of microplastics on agricultural soils. The project will receive 7 million euro of…
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A unique defence: Bacteria lose cell wall in the presence of virus
Bacteria temporarily live without their cell wall if dangerous viruses are near. A remarkable feature, as the cell wall is a sturdy barrier against threats. Still, the discovery has a logical explanation ánd might be of a consequence for fighting pathogenic bacteria, according to Véronique Ongenae,…
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Antibiotics of the future: looking for a new way to kill bacteria
Current antibiotics only address very few target proteins in bacteria to kill them. Researchers know that there are more possible target proteins to tackle the bacteria. The question is: which ones. Thanks to the NWO Vidi Grant, Assistant Professor Molecular Physiology Stephan Hacker and his team can…
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Status update in the evolutionary race between humans and resistant bacteria: two steps forward for us
A patent for what may be a potent, new antibiotic. And: a clear overview of promising approaches to overcome a crucial resistance tactic employed by bacteria. In the span of one week, two researchers from Leiden are receiving their PhDs, each of them on an important step in the battle against bacteria…