Projects
Hormonal regulation of organ growth in Arabidopsis thaliana Ghent University
Hormone action was until recently mainly viewed as an organ-specific process. Based on
recent findings for auxins, gibberellins and brassinosteroids, we speculate that cell type
specificity plays a general role in hormone action mechanisms. In this project, cell type
specificity of ethylene action will be addressed by using cell type specific promoters driving EBF1 and EBF2 (EIN3 binding F-box 1 and 2), two regulators of the ...
The role of NDR kinases in hormonal cross-talk for root growth regulation Ghent University
During embryogenesis, a rigorous develomental program dominated by the plant hormone auxin, ensures the formation of a very predictably patterned embryonic root. After germination, auxin remains the key signals that steers root development. Its activity modulates directional growth, and the positioning and morphogenesis of lateral roots. Local, adverse environments, such as drought, or pathogens, are avoided by adjusting the root growth ...
Impact of external stimuli on meiotic recombination and ploidy reduction in plants - molecular factors and hormonal regulation Ghent University
Meiosis is an essential part of sexual reproduction as it shuffles the parental genetic information and leads to haploid spore formation. The level of genetic exchange between parental chromosomes is tightly regulated through the orchestrated action of several recombination proteins. Recently, studies in yeast and metazoans have revealed an additional role for the environment. More specifically, stress appears to enhance the frequency of ...
Environmental modulation of meiotic recombination and ploidy reduction in plants – relevance, molecular factors and hormonal regulation Ghent University
In eukaryotic organisms, meiosis is an essential part of sexual reproduction as it shuffles the parental genetic information and forms the basis for haploid spore formation. The level of genetic exchange between parental chromosomes in meiosis is tightly regulated and involves the orchestrated action of several ‘recombination’ proteins. Recent studies in yeast and metazoans have revealed an additional role for the environment. More ...
The molecular and hormonal regulation of leaf epinasty during abiotic stress KU Leuven
Epinasty is the downward bending of plant leaves, a characteristic response of species such as tomato to hypoxia in the root zone during waterlogging. These low oxygen conditions stimulate the accumulation and upwards transport of the ethylene precursor ACC. In the shoot, ACC is converted into ethylene, which activates a regulatory cascade to evoke differential elongation in the petiole and eventually epinasty. The dynamics of this response ...
The changing world as a stressful environment: combined effects of temperature, hypoxia, carbon dioxide and ammonia on ionoregulation in fish - influence of energy budget and hormonal regulation. University of Antwerp
The changing world as a stressfull environment: combined effects of temperature, hypoxia, carbon dioxide and ammonia on ionoregulation in fish - influence of energy budget and hormonal regulation. University of Antwerp
The Hazards of Hormones: Risk, Regulation and Women’s Health in the History of Hormones in Belgium KU Leuven
Hormones today are everywhere: in pharmacies and hospitals, on bedside tables and in handbags. Millions of women ingest synthetic sex hormones to control their fertility, for menstrual and menopausal problems, to assist conception, as abortifacients, and for other reasons. In our collective memory, the rise of hormones mostly counts as a positive development, giving rise to women’s emancipation and sexual liberation. Yet there also exists a ...