References of "Jacques, Philippe"
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See detailSynthesis of amonabactins by Aeromonas hydrophila : implication of NRPS of a unique iterate-alternative type
Leclère, Valérie; Subashkumar, Rathinasamy; Wathelet, Bernard ULg et al

Poster (2011)

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See detailBioinformatics tools to decrypt pyoverdine biosynthesis in Pseudomonas sp.
Vanvlassenbroeck, Aurélien; Leclère, Valérie; Pupin, Maude et al

Poster (2011)

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See detailAdenylation domain specificity in pyoverdine NRPS biosynthesis
Vanvlassenbroeck, Aurélien; Leclère, Valérie; Pupin, Maude et al

Poster (2011)

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See detailSynthesis of amonabactins by Aeromonas hydrophila : implication of NRPS of a unique iterative-alternative type
Leclère, Valérie; Rathisamy, Subashkumar; Wathelet, Bernard ULg et al

Poster (2011)

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See detailBioinformatics and molecular approaches to detect NRPS genes involved in the biosynthesis of kurstakin from Bacillus thuringiensis
Abderrahmani, Ahmed; Tapi, Arthur; Nateche, Farida et al

in Applied Microbiology & Biotechnology (2011), 92

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See detailIdentification of surf actin producing strains in Soumbala and Bikalga fermented condiments using polymerase chain reaction and matrix assisted laser desorption/ionization-mass spectrometry methods
Savadogo, A; Tapi, Arthur; Chollet, Marlène et al

in International Journal of Food Microbiology (2011)

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See detailCellular engineering of Bacillus subtilis to enhance the biosynthesis of highly active anti fungal lipopeptides
Guy, J.; Guez, Jean-Sébastien; Coucheny, F. et al

Poster (2010)

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See detailNonribosomal peptides producing strains isolated from Bikalga and Soumbala fermented condiments of Burkina Faso
Savadogo, Aly; Chollet, Marlène; Tapi, Arthur et al

Conference (2009)

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See detailConditioning Panax vietnamensis cell mass production in bioreactors
Jacques, Philippe; Kevers, Claire ULg; Gaspar, Thomas et al

in Acta Botanica Gallica : Bulletin de la Société Botanique de France (2007), 154

The influence of lighting conditions, culture volume and four different auxins (indoleacetic acid (IAA), indolebutyric acid (IBA), 2,4-dichlorophenoxyacetic acid (2,4-D) or 3-(benzo[b]selenyl)acetic acid ... [more ▼]

The influence of lighting conditions, culture volume and four different auxins (indoleacetic acid (IAA), indolebutyric acid (IBA), 2,4-dichlorophenoxyacetic acid (2,4-D) or 3-(benzo[b]selenyl)acetic acid (BSAA)) on Panax vietnamensis cell growth was evaluated in flasks. The highest biomass productivity was observed under continuous light and in the presence of IBA (0.36 g DW l(-1) d(-1)) or BSAA (0.5 g DW l(-1) d(-1)). Cultures in bioreactors were performed with these two auxins. The final biomass concentration was 107 g FW l(-1) and 373 g FW l(-1) in the presence of IBA or BSAA, respectively. [less ▲]

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See detailXPS analysis of chemical functions at the surface of Bacillus subtilis
Ahimou, François; Boonaert, Christophe; Adriaensen, Yasmine et al

in Journal of Colloid and Interface Science (2007), 309(1), 49-55

The surface chemical composition of nine strains of Bacillus subtilis was determined by X-ray photoelectron spectroscopy. Regressions between elemental concentrations and concentrations associated with ... [more ▼]

The surface chemical composition of nine strains of Bacillus subtilis was determined by X-ray photoelectron spectroscopy. Regressions between elemental concentrations and concentrations associated with different components of C1s, N1s, and O1s peaks provided a more precise validation of the procedure used for peak decomposition and allowed the assignment of the peak components to be completed or strengthened. The component of the O1s peak appearing around 531.2 eV was shown to contain a contribution of oxygen from phosphate groups (P=O, P–O−), the other contribution being due to oxygen involved in amide functions. The surface negative charge may be fully attributed to phosphate groups, despite the observation of two types of zeta potential vs pH curves. The strains exhibiting a sharp variation of the zeta potential (range of −35 to −55 mV) between pH 2 and 4.7 were characterized by a high phosphate surface concentration and by an excess (about 25%) of phosphate with respect to the sum of potassium, an exchangeable cation, and protonated nitrogen, attributed to protein or to alanine involved in teichoic acids. [less ▲]

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See detailDirecting the lipopeptide Mycosubtilin biosynthesis toward C17:0 branched isoform influences the expression of cspB and cspC in Bacillus subtilis
Guez, Jean-Sébastien; Drucbert, A.; Müller, C. et al

Poster (2007)

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See detailNovel use of lipopeptide preparations
Deleu, Magali ULg; Brans, Alain; Brasseur, Robert ULg et al

Patent (2004)

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See detailInfluence Of A New Axial Impeller On K(L)A And Xylanase Production By Penicillium Canescens 10-10c
Bakri, Yasser; Jacques, Philippe; Shi, Kui et al

in Applied Biochemistry and Biotechnology (2002), 98

The effects of a new axial impeller (HTPG4) on oxygen volumetric transfer coefficient, KLa, and xylanase production by Penicillium canescens 10-10c were studied and compared for dual-impeller systems, one ... [more ▼]

The effects of a new axial impeller (HTPG4) on oxygen volumetric transfer coefficient, KLa, and xylanase production by Penicillium canescens 10-10c were studied and compared for dual-impeller systems, one with one DT4 impeller below and one HTPG4 above (DT4-HTPG4) and one with two DT4 (DT4-DT4) impellers, in a 5-L bioreactor. The volumetric coefficient of oxygen transfer was measured in culture medium using a gassing-out method at different gassing rates and agitation speeds. We observed that the DT4-HTPG4 combination provided better KLa performance than the DT4-DT4 combination. The two combinations were also tested for their influence on xylanase production by a filamentous microorganism; P. canescens 10-10c. These experiments demonstrated that the DT4-HTPG4 combination impeller enhanced enzyme production up to 23% compared with the DT4-DT4 combination at an aeration rate of 1 vvm and an agitation speed of 600 rpm. The main cause for this difference is thought to be a higher shear stress generated by the DT4-DT4 combination, which damages the mycelium of P. canescens and decreases xylanase production. [less ▲]

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See detailDifferent techniques to study the conformation of surfactins at interfaces
Deleu, Magali ULg; Gallet, Xavier; Brasseur, Robert et al

Poster (2001)

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See detailDissemination of Catabolic Plasmids among Desiccation-Tolerant Bacteria in Soil Microcosms
Weekers, Frederic; Rodriguez, Christian; Jacques, Philippe et al

in Applied Biochemistry and Biotechnology (2001), 91-93(Spring), 219-32

The dissemination of catabolic plasmids was compared to bioaugmentation by strain inoculation in microcosm experiments. When Rhodococcus erythropolis strain T902, bearing a plasmid with trichloroethene ... [more ▼]

The dissemination of catabolic plasmids was compared to bioaugmentation by strain inoculation in microcosm experiments. When Rhodococcus erythropolis strain T902, bearing a plasmid with trichloroethene and isopropylbenzene degradation pathways, was used as the inoculum, no transconjugant was isolated but the strain remained in the soil. This plasmid had a narrow host range. Pseudomonas putida strain C8S3 was used as the inoculum in a second approach. It bore a broad host range conjugative plasmid harboring a natural transposon, RP4::Tn4371, responsible for biphenyl and 4-chlorobiphenyl degradation pathways. The inoculating population slowly decreased from its original level (10(6) colony-forming units [CFU]/g of dry soil) to approx 3 x 10(2) CFU/g of dry soil after 3 wk. Transconjugant populations degrading biphenyl appeared in constant humidity soil (up to 2 x 10(3) CFU/g) and desiccating soil (up to 10(4) CFU/g). The feasibility of plasmid dissemination as a bioaugmentation technique was demonstrated in desiccating soils. The ecologic significance of desiccation in bioaugmentation was demonstrated: it upset the microbial ecology and the development of transconjugants. [less ▲]

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See detailBacteriocin, preparation and use thereof.
Thonart, Philippe; Jabrane, Abdelhamid; Destain, Jacqueline et al

Patent (2000)

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See detailConformational analysis of surfactins at interfaces
Deleu, Magali ULg; Gallet, Xavier; Dufrêne, Yves et al

Poster (2000)

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See detailRevue bibliographique : l’hydroperoxyde lyase
Delcarte, Jérome; Fauconnier, Marie-Laure ULg; Hoyaux, Phryné et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2000), 4(3), 157-167

The hydroperoxide lyase belongs to the lipoxygenase pathway, pathway in which polyunsaturated fatty acids are transformed into a large spectrum of compounds with various chemical and biological functions ... [more ▼]

The hydroperoxide lyase belongs to the lipoxygenase pathway, pathway in which polyunsaturated fatty acids are transformed into a large spectrum of compounds with various chemical and biological functions. The hydroperoxide lyase acts on fatty acids hydroperoxides (mainly linoleic and linolenic). It cleaves the bond between carbon carrying the hydroperoxide function and a vicinal carbon giving an w-oxo-acid and also depending on the species, an aldehyde, a hydrocarbon or an alcohol. [less ▲]

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