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11.
Roupie V Viart S Leroy B Romano M Trinchero N Govaerts M Letesson JJ Wattiez R Huygen K 《Veterinary immunology and immunopathology》2012,145(1-2):74-85
Mycobacterium avium subsp. paratuberculosis (Map), the etiological agent of chronic enteritis of the small intestine in domestic and wild ruminants, causes substantial losses to livestock industry. Control of this disease is seriously hampered by the lack of adequate diagnostic tools and vaccines. Here we report on the immunogenicity of eight Map specific antigens, i.e. MAP1693c, Ag3, MAP2677c (identified by post-genomic and immunoproteomic analysis of Map secretome) and Ag5, Ag6, MAP1637c, MAP0388 and MAP3743 (identified by bioinformatic in silico screening of the Map genome). Strong, antigen-specific IFN-γ responses were induced in mice vaccinated with plasmid DNA encoding MAP1693c, MAP1637c, MAP0388 and MAP3743. In contrast, T cell responses in Map infected mice were directed preferentially against Ag5 and to a lesser extent against MAP3743. None of the tested DNA vaccines conferred protection against subsequent challenge with Map. 相似文献
12.
Lauric Cécillon Nathalie Cassagne Sonia Czarnes Raphaël Gros Jean-Jacques Brun 《Soil biology & biochemistry》2008,40(7):1975-1979
Near infrared reflectance spectroscopy (NIRS) was used to predict six biological properties of soil and earthworm casts including extracellular soil enzymes, microbial carbon, potential nitrification and denitrification. Partial least squares regression (PLSR) models were developed with a selection of the most important near infrared wavelengths. They reached coefficients of determination ranging from 0.81 to 0.91 and ratios of performance-to-deviation above 2.3. Variable selection with the variable importance in the projection (VIP) method increased dramatically the prediction performance of all models with an important contribution from the 1750–2500 nm region. We discuss whether selected wavelengths can be attributed to macronutrient availability or to microbial biomass. Wavelength selection in NIR spectra is recommended for improving PLSR models in soil research. 相似文献
13.
Michel Vennetier Christian Ripert Eric Maille Laurence Blanc Franck Torre Philip Roche Thierry Tatoni Jean-Jacques Brun 《Annals of Forest Science》2008,65(7):711-711
14.
Elisabeth Sambroni Jean-Jacques Lareyre Bernard Breton 《Fish physiology and biochemistry》2003,28(1-4):361-361
The present study indicates that the primary structure of the putative trout FSH receptor (rtFSHR) is highly polymorph. In addition, we demonstrate that an alternative splicing and stage-dependent expression pattern of rtFSHR messengers occur during male and female gametogenesis. 相似文献
15.
Zwyns N Roebroeks W McPherron SP Jagich A Hublin JJ 《Science (New York, N.Y.)》2012,335(6065):167; author reply 167
Slimak et al. (Reports, 13 May 2011, p. 841) reanalyzed the lithic assemblage from the northern site of Byzovaya (Russia) and concluded that it was Mousterian and produced by Neandertals. The previous interpretation of this assemblage as falling within Early Upper Paleolithic variability remains the most parsimonious explanation; pending additional fossil discoveries, there is no evidence supporting the occurrence of Neandertals at these high latitudes. 相似文献
16.
Greffet JJ 《Science (New York, N.Y.)》2005,308(5728):1561-1563
17.
Bénet JJ Dufour B Thonnat J Wéber L Roger F Toma B 《Journal of veterinary medical education》2005,32(1):68-71
Distance learning courses in veterinary epidemiology, taught in French and spread over half a year, were organized in 2003 and 2004. They were the subject of surveys concerning need, evaluation, attaining learning objectives, and satisfaction, the results of which will be used to improve the course scheduled to take place in 2005. 相似文献
18.
Mehmet A Oturan Jean-Jacques Aaron Nihal Oturan Jean Pinson 《Pest management science》1999,55(5):558-562
The degradation of five chlorophenoxyacid herbicides has been studied using an electrochemical method based on the Fenton reaction (simultaneous reduction of dioxygen and ferric ions). The method consists of electrosynthesizing OH· radicals, which react rapidly with chlorophenoxyacids in aqueous media. HPLC and GC-MS analysis show the formation of polyhydroxyphenols and quinones in a first step, and the complete destruction of the aromatic nucleus upon exhaustive electrolysis. This offers a possible way for the depollution of natural waters containing chlorophenoxyacid pesticide residues. © 1999 Society of Chemical Industry. 相似文献
19.
Alister C. Baillie John R. Corbett John R. Dowsett David B. Sattelle Jean-Jacques Callec 《Pest management science》1975,6(6):645-653
Choline acetyltransferase (E.C.2.3.1.6) catalyses the synthesis of acetylcholine and is therefore a target for a new insecticide. We have prepared a variety of compounds, mainly choline analogues, as inhibitors of this enzyme. One of these, 2-isothiocyanatoethyltrimethylammonium iodide, has a Ki of 0.06 μM (Km for choline is 150 μM ) and is apparently the most powerful inhibitor known for this enzyme. Although some of our compounds are insecticidal we believe, on the basis of electrophysiological studies, that they act, not on choline acetyltransferase, but on the acetylcholine receptor of the insect. 相似文献
20.
Animals alter their behavioral patterns in an experience-dependent manner. Olfactory imprinting is a process in which the exposure of animals to olfactory cues during specific and restricted time windows leaves a permanent memory ("olfactory imprint") that shapes the animal's behavior upon encountering the olfactory cues at later times. We found that Caenorhabditis elegans displays olfactory imprinting behavior that is mediated by a single pair of interneurons. To function in olfactory imprinting, this interneuron pair must express a G protein-coupled chemoreceptor family member encoded by the sra-11 gene. Our study provides insights into the cellular and molecular basis of olfactory imprinting and reveals a function for a chemosensory receptor family member in interneurons. 相似文献