Pierre Meerts

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The genetic basis of Cd tolerance and hyperaccumulation was investigated in Arabidopsis halleri. The study was conducted in hydroponic culture with a backcross progeny, derived from a cross between A. halleri and a non-tolerant and non-accumulating related species Arabidopsis lyrata ssp. petraea, as well as with the parents of the backcross. The backcross(More)
Understanding the evolutionary ecology of geographically restricted species is of great importance for the design of conservation strategies and for gaining insight into the evolutionary processes involved in the origin and maintenance of those species. With a very high proportion of endemic species and/or subspecies, the province of Almeria in Andalusia(More)
Seasonal effect of the exotic invasive plant Solidago gigantea on soil pH and P fractions. Summary Invasions by alien plants can alter biogeochemical cycles in recipient ecosystems. We test if Early goldenrod (Solidago gigantea) alters phosphorus fractions. To that end, we compare invaded plots and adjacent, uninvaded resident vegetation for specific(More)
Define the chemical factors structuring plant communities of three copper-cobalt outcrops (Tenke-Fungurume, Katangan Copperbelt, D. R. Congo) presenting extreme gradients. To discriminate plant communities, 172 vegetation records of all species percentage cover were classified based on NMDS and the Calinski criterion. Soil samples were analyzed for 13(More)
Three invasive Fallopia taxa are present in Belgium: F. japonica (FJ), F. sachalinensis (FS) and their hybrid F. × bohemica (FB). FS is the least invasive of the three taxa. In this study, we compared the taxa, in sites where they co-occur, for differences in functional traits that might influence their competitive ability and invasiveness—shoot height and(More)
Chemical soil factors play an important role in generating and maintaining plant diversity. Naturally metal-enriched habitats support highly distinctive plant communities consisting of many rare and endemic species. Species of these plant communities possess remarkable physiological adaptations and are now being considered key elements in the implementation(More)
The tropical vegetation of Africa is characterized by high levels of species diversity but is undergoing important shifts in response to ongoing climate change and increasing anthropogenic pressures. Although our knowledge of plant species distribution patterns in the African tropics has been improving over the years, it remains limited. Here we present(More)
Among the unique flora on copper and cobalt rich soils, some species are able to hyperaccumulate the Cu and Co in their shoots, however, the unexplained high variations of Cu and Co concentrations in shoots have been highlighted. A good comprehension of the Cu and Co accumulation variations would go through a characterization of the Cu and Co speciation in(More)
BACKGROUND Understanding the patterns of biodiversity distribution and what influences them is a fundamental pre-requisite for effective conservation and sustainable utilisation of biodiversity. Such knowledge is increasingly urgent as biodiversity responds to the ongoing effects of global climate change. Nowhere is this more acute than in species-rich(More)
(Faculté de Médecine). Pr Catherine VANDER VELDE (Faculté des Sciences) : prix extraordinaire pour mérites exceptionnels. (Faculté de Philosophie et Lettres) : prix extraordinaire pour mérites exceptionnels. Pr Frédéric ROBERT (Faculté des sciences appliquées), Pr Darius RAZAVU (Faculté des sciences psychologiques et de l'éducation). Pr Jean Doyen (Faculté(More)
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