báo cáo khoa học: " Responses of photosynthetic capacity to soil moisture gradient in perennial rhizome grass and perennial bunchgrass" docx

... patterns of plant photosynthetic capacity and their thresholds to a soil moisture gradient in a perennial rhizome grass, Leymuschinensis, and a perennial bunchgrass, Stipa grandis, both dominant in ... 11:21http://www.biomedcentral.com/1471-2229/11/21Page 2 of 11RESEARC H ARTIC L E Open Access Responses of photosynthetic capacity to soil moisture gradient in perennial rhizome grass and perennial bunchgrassZhenzhu Xu1, Guangsheng ... areas.However, responses of the potential photosynthetic capacity to soil water status in a wide range of soil moisture levels, and determination of their thresholds are poorly understood. This study examined...

Báo cáo khoa học: Activation of crystalline cellulose to cellulose IIII results in efﬁcient hydrolysis by cellobiohydrolase pot

... adsorption of Cel7A after incubation for 120 minas representative results of four time points (120, 180, 240, and 320 min). The lines indicate the fitting of the data to the two-bind-ing-site ... chains are packed intoordered arrays to form insoluble microfibrils, whichare stabilized by cross-links involving intermolecularhydrogen bonds. Microfibrils generally consist of amixture of ... cellobiohydrolases, and share similar two-domain structures, with a catalytic domain (CD) and a cellulose-binding domain (CBD) [7–10]. As the ini-tial step of the reaction, they are adsorbed on thesurface of...

Báo cáo khoa học: "Use of dynamic microsimulation to predict disease progression in patients with pneumonia-related sepsis" docx

... patient.Table 1Handling of missing SOFA scores in the total sample, calibration sample, and validation sampleType of missing SOFA data Interpolation and extrapolation rules used to fill in missing dataData ... ability to predict discharges and deaths using eight different algorithms matching patientsaccording to level of component or total SOFA score, direc-tion of change in SOFA score, and duration of ... notobtained routinely in all patients and were collected in onlyone-third of our cohort; and serology studies for atypical infec-tions and viruses were conducted in fewer than 5% of patientsin...

Báo cáo y học: " Evolution of Dengue Virus Type 3 Genotype III in Venezuela: Diversification, Rates and Population Dynamics" docx

... DENV-3 strainsintoVenezuelaismorelikelytohaveoccurredastheresult of the spread of strains circulating in CentralFigure 3 Structur e of the E protein dimer of DENV-3. E proteindomains I through ... hypothesis that involves collapsing that branchbut leaving the rest of the tree topology identical [42]. In order to gain insight into the evolutionary rate and mode of evolution of DENV-3 genotype ... circulated in the initialyears of the introduction in the continent and strains isolated in the Latin American region in recent years wasobserved. The presence of DENV-3 genotype III strains belonging...

Báo cáo khoa học: "Responses of growth, nitrogen and carbon partitioning to elevated atmospheric CO concentration in live oak 2 (Quercus virginiana Mill.) seedlings in relation to nutrient supply Roberto" pot

... containers were assembled in racks and wrapped in aluminum foil to avoid root system overheat-ing, and set in trays constantly containing a layer of nutrient solution to ... off in the evenings in order to maintainhigher concentrations in the chambers. [CO2] was mea-sured continuously in both the ambient and elevated[CO2] chambers using ... of carbohydrates [38].Total plant leaf area increased in response to elevated[CO2] (and to high N) and LAR (and secondarily LWR)decreased over time in response to...

Tài liệu Báo cáo khoa học: Properties of ecdysteroid receptors from diverse insect species in a heterologous cell culture system – a basis for screening novel insecticidal candidates docx

... fordeveloping a screening system to identify and charac-terize candidate insecticidal compounds showing bothinductive and potentiative activity.ResultsThe DNA-binding domains (DBDs) of Leptinotarsa and ... region and ligand-binding domain (LBD) of ecdysone receptors.Fig. S2. Amino acid alignment of linker region and ligand-binding domain (LBD) of ultraspiracle ⁄ RXRreceptors.This supplementary ... nonsteroidal agonistsbind exclusively to the EcR ligand-binding domain(LBD), although the presence of USP increasesligand-binding afﬁnity [12–15].The diversity of ligand-responsive characteristicsseen...

Tài liệu Báo cáo khoa học: Implication of the glutamine synthetase ⁄glutamate synthase pathway in conditioning the amino acid metabolism in bundle sheath and mesophyll cells of maize leaves doc

... the main nitrogen compounds in thephloem exudates, amounting to 51% of the totalamino acids in the light and 56% in the dark(Fig. 7A). The total amount of alanine, serine and gly-cine was ... The kinetics of Fd-GOGAT activity were assayed by increasing the concentrations of Fd isoprotein as indicated in the ﬁgure (C). Photosynthetic (s) and nonphotosynthetic (d) combinations contained ... Molecular cloning of the family of glutamine synthetase genes from maize: expression of genes for glutamine synthetase and ferredoxin-depen-dent glutamate synthase in photosynthetic and non-photosynthetic...

Tài liệu Báo cáo khoa học: Role of transcription factor activator protein 1 (AP1) in epidermal growth factor-mediated protection against apoptosis induced by a DNA-damaging agent doc

... antiapoptotic and proapoptotic Bcl-2family members has been described as a primary event in determining the susceptibility to apoptosis throughmaintaining the integrity of the mitochondria and inhibiting ... MAPkinase signaling pathway.TAM67 retains the DNA binding and leucine-zipperregion of c-Jun, but it lacks the transactivation domain of c-Jun (amino acids 1–122). It thus blocks the bind-ing of ... by increasing Bcl-XLexpression.Many studies have implicated PtdIns3-K ⁄ Akt signa-ling in the inhibition of apoptosis of a variety of cellsthrough the increased phosphorylation of Bad and caspase...

Tài liệu Báo cáo khoa học: Use of hydrostatic pressure to produce ‘native’ monomers of yeast enolase ppt

... minactivation experiments contained 0.04 mgÆmL)1BSA.The albumin was a dded in order to minimize losses of activity due to absorption of enolase to the sides of thecuvette during the 45 min ... occur during e xposure to pressure. The ﬁrstparameter to change D2, shows a clear d ependence uponprotein concentration, indicating that D2 is monitoringdissociation of t he protein into monomers. ... standard spectra of tyrosine and tryptophan in various solvents, s how t hat t he c hanges i n D2thatareproduced by pressure are due to changes in the environ-ment of tyrosine residues. In...

Tài liệu Báo cáo khoa học: Enhancement of oxidative stress-induced apoptosis by Hsp105a in mouse embryonal F9 cells pptx

... fractionatedinto mitochondrial and cytosolic fractions and cytochrome cwas examined by Western blotting, a large amount of cytochrome c was found in mitochondria with only a smallamount in the cytosolic ... and release of cytochrome c from mitochondria in F9 cells exposed to hydrogen peroxide, and our resultsFig. 7. Suppression of oxidative stress-inducedapoptosis in F9 cells by a potent p38 inhibitor.F9, ... was increased to a greater extent in S3 and S23 cells than in control and V1cells (Fig. 5B). Thus, over-expression of Hsp105a seemed to enhance the release of cytochrome c from mitochondria in F9...

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