factors especially hypoxia and typhoons on recruitment of the gazami crab portunus trituberculatus in osaka bay japan
Fisheries science JSFS , tập 76, số 2, 2010 3
Ngày tải lên :
19/07/2016, 19:43
... (1961) Demonstration of the effect of the fish stock on the species composition of zooplankton and the intensity of metabolism of the whole plankton association Verh Int Ver Theor Gewandte Limnol ... combinations of rice-straw plowing in either autumn or spring or no such plowing, and the presence or absence of stocked fish larvae There was only one plot for each combination of conditions; the ... is the proportion of individuals belonging to the ith item in the fish gut contents, bi is the selectivity index for the ith item, Ai is the number of available prey individuals belonging to the...
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BÁO CÁO " ẢNH HƯỞNG CỦA ĐỘ MẶN THẤP LÊN ĐIỀU HÒA ÁP SUẤT THẨM THẤU + + VÀ HOẠT TÍNH MEN NA /K ATPASE Ở TÔM THẺ CHÂN TRẮNG (Litopenaeu s vannamei) " pptx
Ngày tải lên :
02/04/2014, 10:20
... immunoreactivity in the blue crab: Tissue distribution, variations in the molt cycle, and partial characterization J Exp Zool 262:279-286 Castille Jr F.L and A.L Lawrence 1981a The effect of salinity on the ... Osmotic and chloride regulation in the hemolymph of the tiger prawn Penaeus monodon during molting in various salinities Marine Biology 95:377-385 Funge-Smith S.J., A.C Taylor, J Whitley and J.H ... comparison of osmotic, sodium and chloride concentrations between the urine and hemolymph of Penaeus seti ferus (L.) and Penaeus stylirostris stimpson Comp Biochem Physiol 70A:525-528 Chen J.C and...
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Báo cáo nghiên cứu khoa học: " ẢNH HƯỞNG CỦA ĐỘ MẶN THẤP LÊN ĐIỀU HÒA ÁP SUẤT THẨM THẤU + + VÀ HOẠT TÍNH MEN NA /K ATPASE Ở TÔM THẺ CHÂN TRẮNG (Litopenaeu svannamei)" ppsx
Ngày tải lên :
22/07/2014, 11:21
... immunoreactivity in the blue crab: Tissue distribution, variations in the molt cycle, and partial characterization J Exp Zool 262:279-286 Castille Jr F.L and A.L Lawrence 1981a The effect of salinity on the ... Osmotic and chloride regulation in the hemolymph of the tiger prawn Penaeus monodon during molting in various salinities Marine Biology 95:377-385 Funge-Smith S.J., A.C Taylor, J Whitley and J.H ... comparison of osmotic, sodium and chloride concentrations between the urine and hemolymph of Penaeus seti ferus (L.) and Penaeus stylirostris stimpson Comp Biochem Physiol 70A:525-528 Chen J.C and...
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Báo cáo Y học: The DNA-polymerase inhibiting activity of poly(b-L-malic acid) in nuclear extract during the cell cycle of Physarum polycephalum pot
Ngày tải lên :
31/03/2014, 21:21
... depends on both the concentration of free PMLA and the inhibition constant This parameter reflected the affinity of the polymerase and both the affinity and concentration of competing ligands for binding ... proportional to vi and vo The expression for the relative inhibitory activity is then (vo ) vi)/vi ¼ [PMLA]/Ki Therefore, the higher the concentration of free PMLA, and the lower the value of the inhibition ... polymerase (the arrow in Fig 1) During continued addition of the polymerase, the enzyme activity increased in parallel with the activity of the control experiment in the absence of extract An amount of...
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effects of magnesiumphosphoruspotassium containing in water on molting, growth and survival rate of the white shrimp (litopenaeus vannamei) juveniles, reared in low salinity water
Ngày tải lên :
22/09/2015, 12:38
... in Mainland China and Taiwan Province of China and subsequently spread to the Philippines, Indonesia, Viet Nam, Thailand, Malaysia and India (RAP, 2004) In 2008, 67% of the world production of ... remains until the next molting cycle Duration of the molting cycle depends on the species and age of the shrimp Molting frequency on white shrimp decreased along with increasing the size of shrimp ... discrepancies between the ion concentrations within their bodies and the aquatic environments they inhabit The degree of the osmoregulatory response is largely salinity dependent, the actual strength...
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Tài liệu Báo cáo khoa học: The phosphatase activity of the isolated H4-H5 loop of Na+/K+ ATPase resides outside its ATP binding site docx
Ngày tải lên :
19/02/2014, 16:20
... recognition of pNPP by the pNPP site at the rear surface of the N-domain is due the formation of an hydrogen bond of the NO2-group of pNPP with the amino group of N398 The hydrophobicity of the binding ... method revealed any indication of a conformational change of the N-domain upon ligand binding in the investigated GST fusion protein It is quite evident that the N-domain of the isolated loop forms ... ascribed to the wobbling of the uorophore around its binding site The longer component, on the other hand, is long enough to reect the motion of the whole FITC-labeled H4-H5 loop and not only segmental...
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Báo cáo khoa học: The molecular chaperone a-crystallin incorporated into red cell ghosts protects membrane Na/K-ATPase against glycation and oxidative stress ppt
Ngày tải lên :
17/03/2014, 03:20
... aggregation of lens proteins and enzymes These protective capabilities have been demonstrated with other, in vitro systems, including prevention of aggregation of insulin B chain following reduction of ... assayed following the method of Bernt and Bergmeyer [24], in the presence of fructose (50 mM) to determine if the inhibitory effect of the modifier was through inhibition of the ATP-regenerating system ... regeneration system, nor by loss of ATP or by changes in concentrations of Na+ and K+ levels These experiments were performed in the absence of a-crystallin, suggesting that the chaperone function of...
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Báo cáo Y học: High pressure-induced changes of biological membrane Study on the membrane-bound Na+/K+-ATPase as a model system pdf
Ngày tải lên :
24/03/2014, 00:21
... dissociation, conformational change of protein, and/ or the destruction of integral structure (lipid bilayer and protein) The issue of clarifying the precise nature of the interrelationship between these ... methodology in discriminating conformational changes Effects of pressure on intrinsic ¯uorescence The emission maximum (kmax) and intensity of intrinsic ¯uorescence of Na+/K+-ATPase under increasing ... dissociation of a and b subunits, disassembly of transmembrane a helices, and a separation in the contact surface of membrane and protein due to the thickening and shrinkage of lipid bilayer For the...
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Na+, k+ ATPase in single skeletal muscle fibres and the effects of ageing, training and inactivity
Ngày tải lên :
04/12/2015, 13:59
... isoforms in single skeletal muscle fibres to have a more complete understanding of the underlying molecular properties and adaptations of the NKA following training, inactivity and in ageing In ... Kane and Anthony Denaro in particular for the last months of this thesis finishing for adopting me in to their house, reminding me to eat, sleep and exercise on a daily basis And to the rest of ... Calcium entering the cytoplasm binds to troponin causing tropomyosin to physically shift, uncovering the cross-bridge binding sites on the actin filament The head of the myosin filament can then attach...
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Báo cáo khoa học: Stimulation of p-nitrophenylphosphatase activity of Na+ ⁄ K+-ATPase by NaCl with oligomycin or ATP docx
Ngày tải lên :
07/03/2014, 16:20
... was increased from 0.1 to mm to completely depress the increase in the ouabain-insensitive activity due to increasing the KCl concentration On the other hand, increasing the Na+ concentration ... KCl in the presence of NaCl with or without oligomycin In the absence of oligomycin, increasing the NaCl concentration decreased pNPPase activity (Fig 2A) In the presence of oligomycin, increasing ... resultant increase in Na+ binding was regarded as Na+ occlusion In the absence of oligomycin, NaCl gradually inhibited pNPPase activity and Rb+ binding (Fig 4A,B) In the presence of oligomycin, the binding...
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Báo cáo khoa học: Site-specific phosphorylation of MCM4 during the cell cycle in mammalian cells pot
Ngày tải lên :
16/03/2014, 13:20
... cells including human cells [7] Targets of the kinase in the regulation of DNA replication include ORC2, Cdc6 and Mcm proteins in Saccharomyces cerevisiae [8], and disregulation of these proteins ... phosphorylation of MCM4, together with the presence of geminin, which inhibits the ability of CDT1 to load MCM proteins onto chromatin, may help prevent re-replication of DNA in the G2 and M phase During ... chromatin Phosphorylation of MCM4 and other factors may be involved in stronger binding of MCM4 protein to chromatin in the S phase compared with the G1 phase This assumption seems to be consistent...
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Báo cáo khoa học: Dynamic association of MLL1, H3K4 trimethylation with chromatin and Hox gene expression during the cell cycle ppt
Ngày tải lên :
23/03/2014, 06:20
... trimethylation marks were localized in the less intense DAPI-stained regions in the nucleus (representing less condensed euchromatin), leaving gaps in the more intense DAPI-stained regions (representing ... Fig 6C,D) In the case of the HoxA7 gene promoter, the recruitment of RNAP II and MLL1 and the level of H3K4 trimethylation were low at the beginning (S phase) and gradually increased as the cell ... expression profile (as shown in Fig 6A,B), indicating the importance of MLL1 and H3K4 trimethylation in HoxA5 gene regulation during cell cycle progression The association of a certain amount of RNAP...
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Báo cáo khoa học: No evidence for a role in signal-transduction of Na+/K+-ATPase interaction with putative endogenous ouabain potx
Ngày tải lên :
23/03/2014, 17:21
... by the pump The mentioned, often contradictory observations and interpretations not add to the credibility of the hypothesis The main objections to a normal signaltransducing function of ouabain ... signal-transduction were interpreted as independent of a small increase in [Na+]i and also occasionally independent of the subsequent increase in [Ca2+]i [10], whereas in other publications, activation of the ... enzyme consists of the ouabain-insensitive a1-isoform [19] This explains why large concentrations of ouabain (50–500 lM) are needed to obtain Ca2+-oscillations in a reasonable fraction of the rat...
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Báo cáo Y học: Na+/K+-ATPase as a signal transducer Zijian Xie and Amir Askari docx
Ngày tải lên :
24/03/2014, 00:21
... inhibition by ouabain initiates the increase in [Ca2+]i, and the other the signal transducing pool of the enzyme which, through protein–protein interactions, leads to the activation of a host of signaling ... one pumping ions /K and the other interacting with neighboring proteins are suggested by the data The partial inhibition of the pump by ouabain causes a modest change, if any, in [Na+]i and [K+]i, ... contain little or no Na+/Ca2+-exchanger, the demonstration of the independence of the signal transducing role of Na+/K+ATPase using altered intracellular ion concentrations has been easier in these...
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Báo cáo y học: " Distinguishing between linear and exponential cell growth during the division cycle: Single-cell studies, cell-culture studies, and the object of cell-cycle research" ppsx
Ngày tải lên :
13/08/2014, 23:20
... distribution of the cells at the time they were filtered The decrease in the dashed line is placed at the end of the first division cycle as indicated by the cell elution curve The decreasing exponential ... The data are indicated by the filled squares The straight line drawn through the points is the best fit based on a minimization of deviation of points from the straight line A straight line on ... not the purpose of deriving a general law In the case of DNA, the important principle is the understanding that the movement of the replication fork along the DNA is not subject to regulation...
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Tài liệu Báo cáo khoa học: Minor capsid proteins of mouse polyomavirus are inducers of apoptosis when produced individually but are only moderate contributors to cell death during the late phase of viral infection ppt
Ngày tải lên :
16/02/2014, 09:20
... proteins (VP2 and VP3) of the MPyV were studied in the absence of other virus components as well as during the late phase of virus infection The role of the minor structural proteins in the replication ... toxicity of the minor proteins is controlled during the infectious cycle and that other viral components and ⁄ or cell responses are involved in cell death during the late phase of viral infection ... VP2 and VP3 and the fusion variants VP2–EGFP and VP3–EGFP To further examine the membrane localization of the cytoplasmic fractions of fusion proteins, the 1272 mutual location of membranes stained...
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Tài liệu Báo cáo khoa học: Bioimaging of the unbalanced expression of microRNA9 and microRNA9* during the neuronal differentiation of P19 cells doc
Ngày tải lên :
18/02/2014, 17:20
... sense and antisense strands of the piRNA hairpin are involved in formation of the piRNA-interacting complex (piRC) and function in the transcriptional gene silencing of retrotransposons and genetic ... generation to glial cell generation, and to be related to the expression of granuphilin ⁄ slp4 in insulin-producing cells [28] Moreover, miR9 and other neuronal miRs including miR125b and miR128, ... positions and sequences used to amplify pri-miR9-1, 9-2 and 9-3 Arrows indicate the position and orientation of the primers Bold font represents the sequence of mature miR9* and italic fonts the...
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Tài liệu Báo cáo khoa học: Dimer asymmetry and the catalytic cycle of alkaline phosphatase from Escherichia coli doc
Ngày tải lên :
21/02/2014, 00:20
... binding to the zinc binding sites (M2 and M1) It appears that in contrast to the binding of Zn2+ to the second M3 site, Mg2+ binding in the range of Mg2+ concentrations examined (if it binds at all ... cooperativity in metal ion binding to the M3 site results in homodimer asymmetry Consequently, the in uence of Mg2+ and Zn2+ on the kinetic properties of APase and the deviations from Michaelis–Menten kinetics ... Deviation from linearity in the dependence of the Mg2+ ion concentration It has been determined that the affinity of the subunits for the substrate and the product does not depend on the Mg2+ concentration...
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Tài liệu Báo cáo khoa học: Unfolding and aggregation during the thermal denaturation of streptokinase pptx
Ngày tải lên :
21/02/2014, 03:20
... protein aggregation occurs during the thermal denaturation of intact SK and of the isolated A domain The presence of these aggregation processes has a profound effect on the DSC curves and precludes ... represented in continuous line, second heating in dashed lines, third heating in dotted lines and fourth heating in dashed-dotted lines equilibrium at low concentration are the native, N, and the unfolded, ... the DSC transitions of intact SK by consecutive heating of the same sample in the calorimeter The sample concentrations and pH values are indicated in the panels First heatings of the sample are...
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Tài liệu Báo cáo Y học: Evolution of the enzymes of the citric acid cycle and the glyoxylate cycle of higher plants pdf
Ngày tải lên :
22/02/2014, 04:20
... provide insights into the origin of its individual enzymes However, the study of the enzymes of the tricarboxylic acid cycle necessarily also entails the study of the several enzymes involved in the ... compartmentalized in the glyoxysomes of plants [31], the single exception being aconitase, which is localized in the cytosol [32,33] Here we investigate the evolution of the enzymes of the pyruvate ... that is due to factors other than processes of gene lineage sorting, i.e that there have been major discontinuities in the evolutionary mode of these proteins during their transition from prokaryotic...
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