Publicaties
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The Arabidopsis thaliana RNA Editing Factor SLO2, which Affects the Mitochondrial Electron Transport Chain, Participates in Multiple Stress and Hormone Responses Universiteit Hasselt KU Leuven Universiteit Antwerpen Universiteit Gent
Recently, we reported that the novel mitochondrial RNA editing factor SLO2 is essential for mitochondrial electron transport, and vital for plant growth through regulation of carbon and energy metabolism. Here, we show that mutation in SLO2 causes hypersensitivity to ABA and insensitivity to ethylene, suggesting a link with stress responses. Indeed, slo2 mutants are hypersensitive to salt and osmotic stress during the germination stage, while ...
Cell cycle regulation in different leaves of Arabidopsis thaliana plants grown under control and cadmium-exposed conditions. Universiteit Hasselt Universiteit Antwerpen
Cadmium (Cd) is well known to inhibit vegetative plant growth. However, knowledge regarding its influence on the cell cycle is scarce and mainly limited to cell cultures and root tissue. Therefore, the main aim of this study was to investigate the effects of Cd exposure on cell division and endoreduplication in Arabidopsis thaliana leaves. In order to do so, we first investigated whether different leaves of the same rosette harvested at one time ...
A dynamic dosimetry model for radioactive exposure scenarios in Arabidopsis thaliana Universiteit Hasselt Universiteit Antwerpen
To obtain a better understanding on how non-human biota are affected by exposure to environmental radioactivity, it is essential to link observed effects to a correct estimate of absorbed ionising radiation dose. Current wildlife dose rate and risk assessment tools are not set up to assess changes in dose rate during organism development. This paper presents a dosimetry model for assessing dose rate and absorbed dose during seedling development ...
Three-dimensional patterns of cell division and expansion throughout the development of Arabidopsis thaliana leaves Universiteit Gent Universiteit Antwerpen
Targeted interactomics reveals a complex core cell cycle machinery in Arabidopsis thaliana Universiteit Gent Universiteit Antwerpen
Uranium induced effects on development and mineral nutrition of Arabidopsis Thaliana Universiteit Hasselt
This study aimed to investigate effects on growth and development and alterations in the nutrient profiles for Arabidopsis thaliana seedlings following uranium exposure. Seventeen-day-old Arabidopsis thaliana seedlings, grown in hydroponics, were exposed to 0, 0.1, 1, 10 and 100 mu M uranium for one, three and seven days. Fresh weight of leaves and roots decreased after exposure to 100 mu M uranium for one and three days and after exposure to 1, ...
Ethylene biosynthesis is involved in the early oxidative challenge induced by moderate Cd exposure in Arabidopsis thaliana Universiteit Hasselt
The stress hormone ethylene is known to be crucial for the survival of adverse environmental stimuli. Cadmium (Cd), a toxic metal, increases ethylene biosynthesis through an upregulated expression of 1-aminocyclopropane-1-carboxylic acid (ACC) synthase (ACS) isozymes, ACS2 and ACS6. In this study, wild-type (WT) and acs2-1acs6-1 double KO-mutant Arabidopsis thaliana plants were exposed to moderate (5 mu M) and more severe (10 mu M) Cd stress. ...
Arabidopsis thaliana seedlings show an age-dependent response on growth and DNA repair after exposure to chronic gamma-radiation Universiteit Hasselt
The biosphere is constantly exposed to ionising radiation, due to cosmic radiation and the presence of natural and anthropogenic radionuclides in the environment. The biological effects of the resulting radiation exposure are currently poorly understood in plants, due to a large influence of parameters such as species, cultivar, experimental setup and plant age on the response. In this study, 7-, 10- and 14-day-old Arabidopsis thaliana seedlings ...
Effects of uranium and phosphate concentrations on oxidative stress related responses induced in Arabidopsis thaliana Universiteit Hasselt
The production of reactive oxygen species (ROS) and the induction of the antioxidative defense mechanism are very important in heavy metal toxicity. In this study, biological effects induced after uranium contamination were investigated for Arabidopsis thaliana. Three-week-old seedlings were exposed for 4 days to 100 mu M U in an adjusted Hoagland solution. Uranium exposure caused a decreased growth of leaves (38%) and roots (70%) and a modified ...