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See detailCuttings of the non-rooting rac tobacco mutant overaccumulate phenolic compounds
Faivre-Rampant, Odile; Charpentier, Jean Paul; Kevers, Claire ULg et al

in Functional Plant Biology (2002), 29(1), 63-71

The auxin and phenolic contents, as well as phenylalanine ammonia-lyase (PAL) activity, were determined in in vitro cultured shoots of the recalcitrant-to-root rac mutant of tobacco, and compared with ... [more ▼]

The auxin and phenolic contents, as well as phenylalanine ammonia-lyase (PAL) activity, were determined in in vitro cultured shoots of the recalcitrant-to-root rac mutant of tobacco, and compared with wild-type shoots. The mutant and wild-type shoots showed similar auxin changes during the culture cycle, but with higher contents for the mutant. A transient peak of auxin (corresponding to the achievement of the rooting inductive phase) occurred at day 14 in both types of shoots, but earlier in the basal parts of the wild-type stems. The rac shoots contained more phenolics, corresponding with an increased PAL activity. The most abundant phenolic compound found in the two types of tobacco was chlorogenic acid, which was more abundant in the rac shoots. Rutin was also detected at a higher concentration in the mutant shoots. Basal parts of wild-type shoots treated with 10(-3) chlorogenic acid reacted by accumulating auxins and, unlike untreated controls, did not form adventitious roots. The relationships between those biochemical analyses in relation to the growth limitation of the rac mutant, and the inhibition of its root development, are discussed. [less ▲]

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See detailCV 205-502 : Een niewe lang-werkende dopamine-agonist voor de behandeling van hyperprolactinemie.
Verhelst, J.; Abs, R.; Beckers, Albert ULg et al

in Tijdschrift voor Geneeskunde (1991)

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See detailLe CV du chercheur. Évaluation et valeur comparative
Dozo, Björn-Olav ULg; Fréché, Bibiane

Scientific conference (2011, December 08)

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See detailCWATUP : le certificat de conformité
Delnoy, Michel ULg

in Immobilier (2003), 21

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See detailCWATUP : les arrêtés d'exécution du 17 juillet 2003
Delnoy, Michel ULg

in Immobilier (2003), 19

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See detailLe CWATUP expliqué aux enfants
Delnoy, Michel ULg

in Costermans D. (Ed.) Le CWATUP expliqué aux enfants (2001)

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See detailLe CWATUP Expliqué
Delnoy, Michel ULg

Book published by Edi.pro - 3ème édition (2007)

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See detailLe CWATUP expliqué
Delnoy, Michel ULg

Book published by Edi.pro (1998)

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See detailLe CWATUP expliqué
Delnoy, Michel ULg

Book published by Edi.pro - 2ème édition (2002)

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See detailLe CWATUP
Delnoy, Michel ULg

Book published by Edi.pro - 6ème édition (2008)

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See detailCyanidation of Jabali Ag-Zn ore (Yemen)
Bastin, David ULg

Report (2011)

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See detailCyanide-resistant, ATP-synthesis-sustained, and uncoupling-protein-sustained respiration during postharvest ripening of tomato fruit
Almeida, A.; Jarmuszkiewicz, W.; Khomsi, H. et al

in Plant Physiology (1999), 119

Tomato (Lycopersicon esculentum) mitochondria contain both alternative oxidase (AOX) and uncoupling protein as energy-dissipating systems that can decrease the efficiency of oxidative phosphorylation. We ... [more ▼]

Tomato (Lycopersicon esculentum) mitochondria contain both alternative oxidase (AOX) and uncoupling protein as energy-dissipating systems that can decrease the efficiency of oxidative phosphorylation. We followed the cyanide (CN)-resistant, ATP-synthesis-sustained, and uncoupling-protein-sustained respiration of isolated mitochondria, as well as the immunologically detectable levels of uncoupling protein and AOX, during tomato fruit ripening from the mature green stage to the red stage. The AOX protein level and CN-resistant respiration of isolated mitochondria decreased with ripening from the green to the red stage. The ATP-synthesis-sustained respiration followed the same behavior. In contrast, the level of uncoupling protein and the total uncoupling-protein-sustained respiration of isolated mitochondria decreased from only the yellow stage on. We observed an acute inhibition of the CN-resistant respiration by linoleic acid in the micromolar range. These results suggest that the two energy-dissipating systems could have different roles during the ripening process. [less ▲]

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See detailCyanoacrylate biopsy for cytologic evaluation of the epidermis
ARRESE ESTRADA, Jorge ULg; QUATRESOOZ, Pascale ULg; PIERARD-FRANCHIMONT, Claudine ULg et al

in Hand-book of non-invasive methods and the skin (2005)

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See detailCyanoacrylate skin surface / follicular stripping.
PIERARD, Gérald ULg; Franchimont, Claudine ULg; Delvenne, Philippe ULg et al

in Berardesca, Enzo; Wilhelm, KP; Maibach, H.I. (Eds.) Non invasive diagnostic techniques in clinical dermatology. (2014)

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See detailCyanoacrylate skin surface strippings
PIERARD-FRANCHIMONT, Claudine ULg; ARRESE ESTRADA, Jorge ULg; QUATRESOOZ, Pascale ULg et al

in Textbook of aging skin (2010)

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See detailCyanoacrylate skin surface strippings and the 3S-Bioket advent in tropical dermatology. A look from Liège.
PIERARD, Gérald ULg; Franchimont, Claudine ULg; PAQUET, Philippe ULg et al

in Scientific World Journal (The) (2014), 2014

In the dermatopathology field, some simple available laboratory tests require minimum equipment for establishing a diagnosis. Among them, the cyanoacrylate skin surface stripping (CSSS), formerly named ... [more ▼]

In the dermatopathology field, some simple available laboratory tests require minimum equipment for establishing a diagnosis. Among them, the cyanoacrylate skin surface stripping (CSSS), formerly named skin surface biopsy or follicular biopsy, represents a convenient low cost procedure. It is a minimally invasive method collecting a continuous sheet of stratum corneum and horny follicular casts. In the vast majority of cases, it is painless and is unassociated with adverse events. CSSS can be performed in subjects of any age. The method has a number of applications in diagnostic dermatopathology and cosmetology, as well as in experimental dermatology settings. A series of derived analytic procedures include xerosis grading, comedometry, corneofungimetry, corneodynamics of stratum corneum renewal, corneomelametry, corneosurfametry, and corneoxenometry. [less ▲]

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See detailCyanobacteria from benthic mats of Antarctic lakes as a source of new bioactivities
Biondi, Natascia; Tredici, Mario; Taton, Arnaud et al

in Journal of Applied Microbiology (2008), 105(1), 105-115

Aims: To exploit the cyanobacterial diversity of microbial mats growing in the benthic environment of Antarctic lakes for the discovery of novel antibiotic and antitumour activities. Methods and results ... [more ▼]

Aims: To exploit the cyanobacterial diversity of microbial mats growing in the benthic environment of Antarctic lakes for the discovery of novel antibiotic and antitumour activities. Methods and results: In all, 51 Antarctic cyanobacteria isolated from benthic mats were cultivated in the laboratory by optimizing temperature, irradiance and mixing. Productivity was generally very low (£60 mg l)1 d)1) with growth rates (l) in the range of 0Æ02–0Æ44 d)1. Growth rates were limited by photosensitivity, sensitivity to air bubbling, polysaccharide production or cell aggregation. Despite this, 126 extracts were prepared from 48 strains and screened for antimicrobial and cytotoxic activities. Seventeen cyanobacteria showed antimicrobial activity (against the Gram-positive Staphylococcus aureus, the filamentous fungus Aspergillus fumigatus or the yeast Cryptococcus neoformans), and 25 were cytotoxic. The bioactivities were not in accordance with the phylogenetic grouping, but rather strain-specific. One active strain was cultivated in a 10-l photobioreactor. Conclusions: Isolation and mass cultivation of Antarctic cyanobacteria and LCMS (liquid chromatography ⁄ mass spectrometry) fractionation of extracts from a subset of those strains (hits) that exhibited relatively potent antibacterial and ⁄ or antifungal activities, evidenced a chemical novelty worthy of further investigation. Significance and impact of the study: Development of isolation, cultivation and screening methods for Antarctic cyanobacteria has led to the discovery of strains endowed with interesting antimicrobial and antitumour activities. [less ▲]

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See detailCyanobacteria immobilised in porous silica gels: Exploring biocompatible synthesis routes for the development of photobioreactors
Léonard, Alexandre ULg; Rooke, J. C.; Meunier, C. F. et al

in Energy and Environmental Science (2010), 3(3), 370-377

With the aim of designing photobioreactors (PBR) based on a smart exploitation of microalgae for the production of biofuels and metabolites of interest, this paper describes a novel approach where ... [more ▼]

With the aim of designing photobioreactors (PBR) based on a smart exploitation of microalgae for the production of biofuels and metabolites of interest, this paper describes a novel approach where cyanobacteria are entrapped within highly porous silica matrices. With this concept, it would be possible to work with a constant population of organisms for a continuous (and increased) photoproduction of metabolites, in contrast to "one-shot" uses of liquid cultures. Different hybrid materials based on porous silica gels are described with a special emphasis on finding the most appropriate immobilisation conditions for prolonged cell survival. It is found that an aqueous route based on acid-exchanged sodium silicate combined with the use of silica nanoparticles as a gel-strengthening species shows the best results with a high primary production rate post immobilisation and a preservation of the photosynthetic pigments of up to 35 weeks. Oxygen production, though very low, could be evidenced up to 17 weeks after entrapment, demonstrating the suitability of using porous silica matrices in PBR design. © 2010 The Royal Society of Chemistry. [less ▲]

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See detailCyanobacteria in cold environments
Zakhia, Frederic; Jungblut, Anne-Dorothee; Taton, Arnaud et al

in Margesin, Rosi; Schinner, Frederic; Marx, Jean-Claude (Eds.) et al 'Psychrophiles: from Biodiversity to Biotechnology (2007)

Cyanobacteria evolved under the harsh conditions of the Precambrian and their modern representatives retain a remarkable ability to adapt to and survive within extreme conditions. They dominate ... [more ▼]

Cyanobacteria evolved under the harsh conditions of the Precambrian and their modern representatives retain a remarkable ability to adapt to and survive within extreme conditions. They dominate terrestrial and freshwater cold ecosystems of the Arctic, Antarctic and alpine regions, even though they do not seem to be specifically adapted to optimal growth at low temperatures. They play a major ecological role as they often are primary colonisers of substrates and major primary producers in these ecosystems. The application of molecular tools in combination with classic morphological techniques has begun to provide new insights into the real diversity of cyanobacteria and their biogeographical distribution in cold environments. Our survey of recent studies suggests complex distributional patterns of cyanobacteria, with cosmopolitan, endemic, and habitat-specific genotypes. This ongoing research will help to identify specific geographical areas that have unique microbial communities. However, many more studies are needed to unravel the enormous diversity of cyanobacteria and to better define their biogeographical patterns in cold environments. This is an urgent task in view of the climatic changes that will undoubtedly alter the structure and functioning of microbial communities in polar and alpine ecosystems. [less ▲]

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See detailCyanobacteria in microbial mats of Antarctic lakes (East Antarctica) - A microscopical approach
Taton, Arnaud; Hoffmann, Lucien; Wilmotte, Annick ULg

in Algological Studies (2008), 168

The cyanobacterial diversity in microbial mats of 56 lakes located in the Larsemann Hills and Bølingen Islands (East Antarctica) was studied by light microscopy. Thirty taxa belonging to 13 genera of ... [more ▼]

The cyanobacterial diversity in microbial mats of 56 lakes located in the Larsemann Hills and Bølingen Islands (East Antarctica) was studied by light microscopy. Thirty taxa belonging to 13 genera of Chroococcales, Oscillatoriales and Nostocales were described. Photomicrographs of the different taxa are provided and their taxonomical assignment as well as their ecology and distribution are discussed. In addition, a semi-quantitative estimation of the abundance of the different morphotypes in the samples was realized and correlated with the mat physiognomy. [less ▲]

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