Tài liệu Báo cáo " Effecting of medium composition on biomass and ginsenoside production in cell suspension culture of Panax vietnamensis Ha et Grushv " doc

... Journal of Science, Natural Sciences and Technology 23 (2007) 269-274 269 Effecting of medium composition on biomass and ginsenoside production in cell suspension culture of Panax vietnamensis Ha ... medium containing 3% sucrose. Effects of application sole nitrate (NO3-) and in combination with ammonium (NH4+) on production of ginseng saponin and polysaccharides by suspension cultures ... suspension culture of ginseng cell and some attempts have been made to increase biomass and ginsenoside yield of Ngoc Linh ginseng cell culture. 2. Materials and methods Induction of callus...

Báo cáo " Effects of macro elements on biomass and ginsenoside production in cell suspension culture of Ngoc Linh ginseng " docx

... biosynthesis. In cell suspension cultures of P. ginseng and P. notoginseng, a low initial concentration of phosphate in the medium sufficiently promoted both cell growth and ginsenoside accumulation ... Journal of Science, Natural Sciences and Technology 24 (2008) 248-252 248 Effects of macro elements on biomass and ginsenoside production in cell suspension culture of Ngoc Linh ginseng (Panax vietnamensis ... result that is similar to our own. Likewise, [1] reported that NH4+ in the culture medium inhibited ginsenoside accumulation in P. notoginseng cell suspension cultures and that maximum ginsenoside...

Báo cáo " Cell suspension culture Panax ginseng C. A. Meyer: Role of plant growth regulators and medium composition on biomass and ginsenoside production " docx

... yield of ginseng cell culture through manipulation various culture factors and process variable. The maximum biomass yields of cell suspension culture of ginseng was obtained in medium containing ... ginsenoside production and further increase of sucrose concentration upto 70 g/L led to a decrease in ginsenoside accumulation and biomass production. The maximum growth and ginsenoside production ... effective in increasing productivity. In this paper, we established cell suspension culture of ginseng cell and some attempts have been made to increase biomass and ginsenoside yield of ginseng cell...

Tài liệu Báo cáo khoa học: Collagen I regulates matrix metalloproteinase-2 activation in osteosarcoma cells independent of S100A4 pdf

... effect of S100A4 on MMP and TIMP regulation and thereby on the cell s possibility to promote inva-sion and metastasis.Materials and methodsMaterialsDMEM containing Hams F12 medium, penicillin, ... facilitate the invasion and metastasis process, depending on the time and localization of their expression. The N-terminal part of TIMPs is involved in binding to the active site of MMPs and hence ... stimulation of invasion and metastasis, the actual mechanism for themetastasis-promoting function of S100A4 is not com-pletely understood. The protein seems to have severalfunctions, both intracellularly...

Tài liệu Báo cáo " Conflicting chip firing games on graphs and on trees " pptx

... version of CFG, by considering that a configuration can be transformed into another one by transferring chips from one vertex along one of its outgoing edges. However, the firing of a chip along ... all configurations reachable from the initial one is called configuration space, and a fixed point is a configuration from which the evolution rule can not be applied. Convergence conditions (involving ... configuration, we call configuration space, and we denote by CCFG(G,O), the set of all configurations reachable from the initial configuration O. On this set, we define the following relation: a ≥...

Tài liệu Báo cáo " Spatial organization for rational land use and environmental protection in Uong Bi Town by functional sub-areas" docx

... regional environmental evolution, combined with the consideration of orientation for development of Uong Bi area and Quang Ninh Province, a spatial organization of land use and environmental ... economic area of Quang Ninh Province. The Uong Bi Town area has rather rich mineral resources, consisting of coal (690 million tons), limestone (28-30 million tons), claystone (595,000 tons), ... analysis and evaluation of natural, socio-economic and environmental conditions of Uong Bi Town; (2) Orientation of spatial organization by sub-areas and recommendations of solutions for implementation....

Tài liệu Báo cáo khoa học: Staphylococcal enterotoxin C1-induced pyrogenic cytokine production in human peripheral blood mononuclear cells is mediated by NADPH oxidase and nuclear factor-kappa B doc

... dithiothreitol, 0.5 mm phenyl-methylsulfonyl ﬂuoride and 1 lgÆmL)1each of antipain,leupeptin, aprotinin, and pepstatin A) and then incubatedfor 20 min on ice with occasional mixing. The nucleardebris ... (2003) Concentra-tions and speciﬁc antibodies to staphylococcal entero-toxin-C and toxic shock syndrome toxin-1 in bovinemammary gland secretions, and in ammatory responseto the intramammary inoculation ... Chen SY (1985) Depletion of noradrenalin in the hypothalamus reduces the febrileresponse induced by prostaglandin E2, thyrotropin-re-leaseing hormone and b-endorphin. Neuropharmacology24, 1039–1042.C...

Tài liệu Báo cáo khoa học: NirF is a periplasmic protein that binds d1 heme as part of its essential role in d1 heme biogenesis pdf

... cas-sette. Doc. S2. Construction of DnirF cassette for generatingunmarked nirF deletion and modiﬁcation of suicidalvector pRVS1. Doc. S3. Construction of marked and unmarked dele-tion in nirF.Table ... courses of nitrite accumulation and consumption in Paracoccus pantotro-phus strains. Starter cultures were grownaerobically in LB with shaking before inocu-lation of mineral salt medium containing20 ... oranaerobic conditions. We also did not observe anyinteraction between the puriﬁed NirF and a range of nucleotide-containing cofactors by using a variety of biophysical methods (data not shown). Nonetheless,we...

Tài liệu Báo cáo khoa học: High-afﬁnity ligand binding by wild-type/mutant heteromeric complexes of the mannose pptx

... suggesting that the I ⁄ T muta-tion did not interfere with the formation of oligomersthat are functional in phosphomannosyl ligand binding and establishing a baseline of ligand binding function(Fig. ... wild-type and point-mutated IGF-II binding sitesbetween two dimerized mini-receptors had no effect on the function of thecontralateral binding site, indicating IGF-II binding to each side of thedimer ... receptors.Tethering to the resin of asymmetric heterodimers sug-gests the importance of anchoring the tail of the ecto-domain for both IGF-II and Man-6-P ligand binding.Receptor binding on resin resembles...

Tài liệu Báo cáo khoa học: 2,5-diamino-6-ribitylamino-4(3H)-pyrimidinone 5¢-phosphate synthases of fungi and archaea docx

... also involved in a variety of non-redoxprocesses such as DNA photorepair, blue-light sensing in plants and a variety of enzyme reactions includingcertain dehydration and isomerisation reactions ... signals and the appearance of asinglet at 42 p.p.m., reflecting the 1¢ carbon of the ribi-tyl side chain of product 5. Kinetic analysis confirmedpreferential consumption of the b anomer of the ... ribosyl side chain of compound 3 in the ascomy-cete Ashbya gossypii is conducive to introduction of ahydrogen atom into the 1¢-proS position of the ribitylside chain of riboflavin [21]. We have extended...

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