A5015815368- Plant Molecular Biology Research
- Plant nutrient uptake and metabolism
- Plant Reproductive Biology
- Nematode management and characterization studies
- Legume Nitrogen Fixing Symbiosis
- Light effects on plants
- Plant tissue culture and regeneration
- Genetically Modified Organisms Research
- Plant Parasitism and Resistance
- Plant Virus Research Studies
- Plant Gene Expression Analysis
- Insect-Plant Interactions and Control
- Cassava research and cyanide
- Chromosomal and Genetic Variations
- Insect Resistance and Genetics
- Plant Taxonomy and Phylogenetics
- Pesticide and Herbicide Environmental Studies
- Parasite Biology and Host Interactions
- Polysaccharides and Plant Cell Walls
- Plant Pathogens and Resistance
- Microbial Metabolites in Food Biotechnology
- Transgenic Plants and Applications
- Climate Change Communication and Perception
- Studies on Chitinases and Chitosanases
- Parasitic Diseases Research and Treatment
Ghent University
2008-2021
VIB-UGent Center for Plant Systems Biology
2008-2021
Vlaams Instituut voor Biotechnologie
2008-2018
University of Tübingen
2008
University of Edinburgh
2008
Duke University
2008
Center for Systems Biology
2008
During the development of multicellular organisms, organogenesis and pattern formation depend on formative divisions to specify maintain pools stem cells. In higher plants, these activities are essential shape final root architecture because functioning apical meristems de novo lateral roots entirely rely it. We used transcript profiling sorted pericycle cells undergoing initiation identify receptor-like kinase ACR4 Arabidopsis as a key factor both in promoting cell constraining number once...
Like animals, the mature plant body develops via successive sets of instructions that determine cell fate, patterning, and organogenesis. In coordination various developmental programs, several hormones play decisive roles, among which auxin is best-documented hormonal signal. Despite broad range processes influenced by auxin, how such a single signaling molecule can be translated into multitude distinct responses remains unclear. Arabidopsis thaliana , lateral root development classic...
Gradients of the plant hormone auxin, which depend on its active intercellular transport, are crucial for maintenance root meristematic activity. This directional transport is largely orchestrated by a complex interaction specific influx and efflux carriers that mediate auxin flow into out cells, respectively. Besides these proteins, plant-specific polyphenolic compounds known as flavonols have been shown to act endogenous regulators transport. However, only limited information available how...
The architecture of a plant's root system, established postembryonically, results from both coordinated growth and lateral branching. plant hormones auxin cytokinin are central endogenous signaling molecules that regulate organogenesis positively negatively, respectively. Tight control mutual balance their antagonistic activities particularly important during the early phases to ensure continuous initiation (LRI) proper development primordia (LRP). Here, we show organogenesis, including...
Abstract During the interaction between sedentary plant-parasitic nematodes and their host, complex morphological physiological changes occur in infected plant tissue, finally resulting establishment of a nematode feeding site. This cellular transformation is result altered gene expression most likely induced by proteins injected cell nematode. Here, we report on identification WRKY transcription factor expressed during infection. Using both promoter-reporter fusions situ reverse...
Plant-parasitic nematodes are destructive plant pathogens that cause significant yield losses. They induce highly specialized feeding sites (NFS) in infected roots from which they withdraw nutrients. In order to establish these NFS, it is thought the manipulate molecular and physiological pathways of their hosts. Evidence accumulating signalling molecule auxin involved initiation development sedentary plant-parasitic nematodes. Intercellular transport essential for various aspects growth...
The plant hormone auxin and its directional transport are known to play a crucial role in defining the embryonic axis subsequent development of body plan. Although PIN efflux transporters has been clearly assigned during shoot root specification, influx carriers AUX1 LIKE-AUX1 (LAX) proteins is not well established. Here, we used chemical genetic tools on Brassica napus microspore-derived embryos Arabidopsis thaliana zygotic embryos, demonstrate that AUX1, LAX1 LAX2 required for both pole...
Hormone-guided self-organization Auxin signals travel through pathways in developing or regenerating plant tissues to guide tissue formation. Hajný et al. now show that an auxin-regulated receptor turn regulates phosphorylation and thus subcellular localization of auxin transporter. Through this signaling pathway, builds the which it is transported, guiding development as goes. Science , issue p. 550
Abstract To establish three-dimensional structures/organs, plant cells continuously have to adapt the orientation of their division plane in a highly regulated manner. However, mechanisms underlying switches remain elusive. Here, we characterize viable double knockdown mutant Arabidopsis thaliana group α Aurora (AUR) kinases, AUR1 and AUR2, (aur1-2 aur2-2), with primary defect lateral root formation outgrowth. Mutant analysis revealed that aur1-2 aur2-2 primordia are built from randomly...
Auxin is unique among plant hormones due to its directional transport that mediated by the polarly distributed PIN auxin transporters at plasma membrane. The canalization hypothesis proposes feedback on polar flow a crucial, plant-specific mechanism mediating multiple self-organizing developmental processes. Here, we used effect localization in Arabidopsis thaliana roots as proxy for polarity during canalization. We performed microarray experiments find regulators of this process act...
In this article, we present the cloning of Hscm1, a gene for chorismate mutase (CM) from beet cyst nematode Heterodera schachtii. CM is key branch-point enzyme shikimate pathway, and secondary metabolites that arise pathway control developmental programmes defence responses plant. By manipulating plant's endogenous can influence plant physiology its own benefit. Hscm1 member family expressed during pre-parasitic parasitic stages nematode's life cycle. situ mRNA hybridization reveals an...
Peptide-receptor signaling is an important system for intercellular communication, regulating many developmental processes. A single process can be controlled by several distinct peptides. However, since peptide-receptor modules are usually studied separately, their mechanistic interactions remain largely unexplored. Two phylogenetically unrelated modules, GLV6/GLV10-RGI and TOLS2/PIP2-RLK7, independently described as inhibitors of lateral root initiation, show striking similarities between...
The activity of the Arabidopsis thaliana cyclin-dependent kinase AtCDKA;1 is important throughout G(1)/S and G(2)/M transitions guarantees progression cell cycle. Inhibitor studies have shown that activation cycle for development nematode feeding sites. aim this study was to silence expression gene in sites interfere with their development. Therefore, sense antisense constructs were made fused a nematode-inducible promoter which activated at an earlier time point than AtCDKA;1. Two...