ORBi Open Repository and Bibliography
In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision).
This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.
From landscape infrastructures to conservation biological control. Why the concept of functional diversity may be useful? - Hatt, Séverin; Francis, Frédéric
Landscape infrastructures are numerous. They can be hedgerows, woodlands or wildflower strips. They are known to provide ecosystem services such as reducing soil erosion and nutrient leaching or support biodiversity conservation. They may also help to biologically control pests. But conclusions of research papers are not unanimous about the positive effect of wildflower strips to control pests in fields. The cause may be the type of flower mixes sown in fields. In this context, the concept of functional diversity may be useful to constitute flower mixes that better enhance biological control.
Development of entomopathogenic fungi in mosquito control: which kind of production for which efficiency? - Bawin, Thomas; Delvigne, Frank; Francis, Frédéric
Mosquitoes (Diptera: Culicidae) are zoonotic vectors responsible for numerous infectious diseases of medical and veterinary importance such as filariasis, malaria and encephalitis. As part of an integrated vector control, entomopathogenic fungi could be developed as biopesticides in two ways: spores and metabolites recognized as effective virulence factors.
Solid-state fermentation enhances spore production and induces the secretion of metabolites quantitatively and qualitatively different from submerged fermentation, which impairs fungal metabolic efficiency. In this context, we showed high spore productivity of solid-state media based on agro-industrial substrates as wheat bran. Spores remained pathogenic, as revealed by classical toxicity tests and electron microscopy. However,...
Belowground Chemical Ecology: The Case of Wireworms - Barsics, Fanny; Delory, Benjamin; Delaplace, Pierre; Fauconnier, Marie-Laure; Fiers, Marie; Jijakli, Haissam; Francis, Frédéric; Haubruge, Eric; Verheggen, François
Wireworms, clock-beetles' larvae (Coleoptera, Elateridae), are below ground pests of many crops. They cause dramatic yield losses worldwide. Research on their ecology is crucial to undertake innovative management strategies. In the field of chemical ecology, multitrophic interactions occurring in the rhizosphere are gaining increasing attention from entomologists and agronomists. Our research aims at unveiling the role of volatile organic compounds (VOC) involved in wireworms' foraging behavior, putatively leading to host localization and/or host recognition.