957 resultados para mono dicotiledôneas
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The objective of the present study was to evaluate the effect of the inclusion of a mono component serine protease (RONOZYME ProAct, DSM Nutritional Products) in diets with two different AMEn contents on apparent ileal digestibility (AID) of amino acids (AA) and growth performance in broilers from 1 to 18 days of age.
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Resumen: Descripcin: representacin alegrica de la vanidad en la figura de un mono sujetando un espejo
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Colofn
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Hay un ejemplar encuadernado con: Furs, capitols, prouisions e actes de Cort (XVI/6).
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The expression of the jellyfish green fluorescent protein (GFP) in plants was analyzed by transient expression in protoplasts from Nicotiana tabacum, Arabidopsis thaliana, Hordeum vulgare, and Zea mays. Expression of GFP was only observed with a mutated cDNA, from which a recently described cryptic splice site had been removed. However, detectable levels of green fluorescence were only emitted from a small number of protoplasts. Therefore, other mutations in the GFP cDNA leading to single-amino acid exchanges in the chromophore region, which had been previously studied in Escherichia coli, were tested in order to improve the sensitivity of this marker protein. Of the mutations tested so far, the exchange of GFP amino acid tyrosine 66 to histidine (Y66H) led to detection of blue fluorescence in plant protoplasts, while the exchange of amino acid serine 65 to cysteine (S65C) and threonine (S65T) increased the intensity of green fluorescence drastically, thereby significantly raising the detection level for GFP. For GFP S65C, the detectable number of green fluorescing tobacco (BY-2) protoplasts was raised up to 19-fold, while the fluorimetricly determined fluorescence was raised by at least 2 orders of magnitude.
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Los nematodos fitopatgenos y en particular los agalladores causan graves prdidas al tomate, un cultivo de gran importancia econmica en Espaa, la Unin Europea y en todo el mundo. El manejo de enfermedades por nematicidas qumicos y fumigantes est muy limitado por la prohibicin en la Unin Europea y a escala mundial del uso de muchos nematicidas qumicos y de fumigantes como el bromuro de metilo. Los suelos supresivos a nematodos son ejemplos de control biolgico natural que incluyen antagonistas de nematodos con potencial para su uso en el manejo de dichos patgenos vegetales. Nuestro grupo posee una dilata experiencia en estudio de la biologa y en particular en el anlisis del modo de accin del hongo parsito de huevos de nematodos, Pochonia chlamydosporia. En este artculo incluimos un resumen de nuestros estudios sobre presencia de P. chlamydosporia en suelos agrcolas. A continuacin abordamos el estudio de aspectos celulares y moleculares de la infeccin de huevos de nematodos por P. chlamydosporia. Nuestro grupo fue pionero al demostrar que los hongos nematfagos se comportan como endfitos colonizando las races de mono y dicotiledneas. Recientemente hemos secuenciado el genoma de P. chlamydosporia. El estudio de sus relaciones filogenmicas y el anlisis de sus familias gnicas apoyan el comportamiento multitrfico del hongo. Finalmente aportamos nuestros resultados del anlisis metabolmico de la interaccin tomate-nematodo agallador-P. chlamydosporia. Nuestra actual hiptesis de trabajo es que el estudio de dicha interaccin por tcnicas de anlisis molecular masivo abren nuevas vas al manejo sostenible de nematodos bloqueando su comunicacin con la planta y activando o modulando las defensas de los cultivos por hongos antagonistas como P. chlamydosporia.
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Enantiomerically pure mono-N-Boc-protected trans-cyclohexa-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of ,-disubstituted aldehydes to maleimides. Using a single enantiomer of the organocatalyst, both enantiomeric forms of the resulting Michael adducts bearing a new quaternary stereocenter are obtained in high yields, by only changing the reaction solvent from chloroform (up to 86% ee) to aqueous DMF (up to 84% ee).
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BACKGROUND Nociceptin in the peripheral circulation has been proposed to have an immunoregulatory role with regards to inflammation and pain. However, the mechanisms involved in its regulation are still not clear. The aim of this study was to investigate signalling pathways contributing to the regulation of the expression of nociceptin under inflammatory conditions. METHODS Mono Mac 6 cells (MM6) were cultured with or without phorbol-12-myristate-13-acetate (PMA). Prepronociceptin (ppNOC) mRNA was detected by RT-qPCR and extracellular nociceptin by fluorescent-enzyme immunoassay. Intracellular nociceptin and phosphorylated kinases were measured using flow cytometry. To evaluate the contribution of various signalling pathways to the regulation of ppNOC mRNA and nociceptin protein, cells were pre-treated with specific kinase inhibitors before co-culturing with PMA. RESULTS ppNOC mRNA was expressed in untreated MM6 at low concentrations. Exposure of cells to PMA upregulated ppNOC after nine h compared with controls without PMA (median normalized ratio with IQR: 0.18 (0.15-0.26) vs. 0 (0-0.02), P<0.01). Inhibition of mitogen-activated protein kinases specific for signal transduction reversed the PMA effects (all P<0.001). Induction of nociceptin protein concentrations in PMA stimulated MM6 was prevented predominantly by identity of ERK inhibitor (P<0.05). CONCLUSIONS Upregulation of nociceptin expression by PMA in MM6 cells involves several pathways. Underlying mechanisms involved in nociceptin expression may lead to new insights in the treatment of pain and inflammatory diseases.
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Poems and prose.
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Mode of access: Internet.
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Mode of access: Internet.
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A reissue of p. [19]-90 of the author's Petits joyaux bibliophiliques [1894] Also issued in combination with his Manuel du Cazinophile, the whole forming a supplement to "Cazin, sa vie et ses editions; par un Cazinophile" [Brissart-Binet] Reims, 1877.
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"Materials Central, Contract no. AF 33(616)-6480, Project no. 7340."
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Thesis (doctoral)--Universitat Basel.
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Mode of access: Internet.