The Plant Extracellular Matrix: News from the Cell`s Frontier
... flotation centrifugation, and a sequencedependent glucanase was used to show that the synthase produced the expected products, cellotriosyl and cellotetraosyl unit structures, in vitro (Gibeaut and Carpita, 1994). However, a callose synthase activity was observed in the maize Golgi membranes in addi ...
... flotation centrifugation, and a sequencedependent glucanase was used to show that the synthase produced the expected products, cellotriosyl and cellotetraosyl unit structures, in vitro (Gibeaut and Carpita, 1994). However, a callose synthase activity was observed in the maize Golgi membranes in addi ...
the effect of proteolytic digestion products on multiplication and
... strains of monocytes from blood and from spleen. The effect of increasing degrees of hydrolysis of the protein was tested by comparative experiments with the peptic, the tryptic, and the ereptic and tryptic digests of a given protein at equal nitrogen concentration. As a further test, experiments we ...
... strains of monocytes from blood and from spleen. The effect of increasing degrees of hydrolysis of the protein was tested by comparative experiments with the peptic, the tryptic, and the ereptic and tryptic digests of a given protein at equal nitrogen concentration. As a further test, experiments we ...
Studies of the cat`s medial interlaminar nucleus
... the A laminae are comprised mostly of X- and Y-cells, this suggests that, although Y-cells on average are larger than X-cells, considerable overlap exists in their size distribution. No differences between t h e ipsilateral and contralateral terminal zones were found on any measure. Since MIN cells ...
... the A laminae are comprised mostly of X- and Y-cells, this suggests that, although Y-cells on average are larger than X-cells, considerable overlap exists in their size distribution. No differences between t h e ipsilateral and contralateral terminal zones were found on any measure. Since MIN cells ...
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... The TGF-β superfamily of secreted signalling molecules plays a pivotal role in the regulation of early embryogenesis, organogenesis and adult tissue homeostasis. Here we report the identification of Xenopus N-acetylgalactosaminyltransferase-like 1 (xGalntl-1) as a novel important regulator of TGF-β ...
... The TGF-β superfamily of secreted signalling molecules plays a pivotal role in the regulation of early embryogenesis, organogenesis and adult tissue homeostasis. Here we report the identification of Xenopus N-acetylgalactosaminyltransferase-like 1 (xGalntl-1) as a novel important regulator of TGF-β ...
The Life Cycle 12. - mt
... A basic process in reproduction is the creation of a ....................... copy. ....................... is necessary to maintain the number of individuals of a species. In asexual reproduction the cells divide ....................... . The ....................... of bread mould (Mucor) are thread ...
... A basic process in reproduction is the creation of a ....................... copy. ....................... is necessary to maintain the number of individuals of a species. In asexual reproduction the cells divide ....................... . The ....................... of bread mould (Mucor) are thread ...
Cell Injury
... Generation of ROS • Oxidation - reduction reactions • Absorption of radiant energy • Rapid bursts of ROS produced in activated leukocytes during inflammation • Enzymatic metabolism of exogenous chemicals or drugs • Transition metals - iron and copper ...
... Generation of ROS • Oxidation - reduction reactions • Absorption of radiant energy • Rapid bursts of ROS produced in activated leukocytes during inflammation • Enzymatic metabolism of exogenous chemicals or drugs • Transition metals - iron and copper ...
Cell cycle exit during terminal erythroid differentiation is associated
... during the time course and served as evidence that the cells were differentiating. Levels of cdk2, cdk4, and cyclin D3 mRNA decreased during differentiation, albeit with different kinetics. Cyclin D1 and D2 mRNA were not expressed in differentiating erythroblasts at any time point (data not shown). ...
... during the time course and served as evidence that the cells were differentiating. Levels of cdk2, cdk4, and cyclin D3 mRNA decreased during differentiation, albeit with different kinetics. Cyclin D1 and D2 mRNA were not expressed in differentiating erythroblasts at any time point (data not shown). ...
Cellular uptake of fatty acids driven by the ER-localized acyl
... the plasma membrane has remained unresolved. Although there is general agreement that fatty acids can principally be taken up by passive diffusion across the lipid bilayer, the extent and significance of this process is a matter of considerable debate (Black and DiRusso, 2003; Hamilton et al., 2002; ...
... the plasma membrane has remained unresolved. Although there is general agreement that fatty acids can principally be taken up by passive diffusion across the lipid bilayer, the extent and significance of this process is a matter of considerable debate (Black and DiRusso, 2003; Hamilton et al., 2002; ...
Gene Section BTK (Bruton agammaglobulinemia tyrosine kinase) Atlas of Genetics and Cytogenetics
... asso-ciated with a very mild early B cell developmental block, but with impaired maturation and poor survival of peripheral B cells. XLA is a hetero-geneous disease, even within single families and no correlation has been observed between the position of the mutation and phenotypic variables, such a ...
... asso-ciated with a very mild early B cell developmental block, but with impaired maturation and poor survival of peripheral B cells. XLA is a hetero-geneous disease, even within single families and no correlation has been observed between the position of the mutation and phenotypic variables, such a ...
118 - University of Oxford
... epiblast [93] comprising primitive streak precursor cells that have migrated to this area by a series of ‘polonnaise movements’ [105]. The £rst visible sign of gastrulation is formation of the primitive streak, which arises from Koller’s sickle at the posterior midline of the blastodisc [52] (Figure ...
... epiblast [93] comprising primitive streak precursor cells that have migrated to this area by a series of ‘polonnaise movements’ [105]. The £rst visible sign of gastrulation is formation of the primitive streak, which arises from Koller’s sickle at the posterior midline of the blastodisc [52] (Figure ...
Secondary embryonic axis formation by
... To examine whether these micromeres are sufficient to restore an embryonic axis on their own, either 2d11 or 4d was transplanted to the position of 2d11 or 4d of a host embryo from which 2d11 and 4d had been ablated. The reconstituted embryos failed to restore an embryonic axis in either transplanta ...
... To examine whether these micromeres are sufficient to restore an embryonic axis on their own, either 2d11 or 4d was transplanted to the position of 2d11 or 4d of a host embryo from which 2d11 and 4d had been ablated. The reconstituted embryos failed to restore an embryonic axis in either transplanta ...
Arachidonic acid inhibits the store-operated Ca2+ current in rat liver
... Ca2+ oscillations in hepatocytes are maintained by a storeoperated Ca2+ entry mechanism, as they are inhibited by known blockers of SOCs [19]. On the other hand, there is evidence that Ca2+ -mobilizing hormones induce AA release [20]. The present study was designed to elucidate the effects of AA on ...
... Ca2+ oscillations in hepatocytes are maintained by a storeoperated Ca2+ entry mechanism, as they are inhibited by known blockers of SOCs [19]. On the other hand, there is evidence that Ca2+ -mobilizing hormones induce AA release [20]. The present study was designed to elucidate the effects of AA on ...
Two distinct sources for a population of maturing axial
... have shown that a specific topological arrangement of domains persists from the streak to the tail bud, and includes an area (the node-streak border) in which ectoderm that expresses primitive streak markers overlies the prospective notochord. This arrangement persists in the chordoneural hinge. Hom ...
... have shown that a specific topological arrangement of domains persists from the streak to the tail bud, and includes an area (the node-streak border) in which ectoderm that expresses primitive streak markers overlies the prospective notochord. This arrangement persists in the chordoneural hinge. Hom ...
Symmetry, asymmetry, and the cell cycle in plants: known knowns
... 2007). Another cell cycle regulator, the RBR1 protein, appears to be involved in asymmetric divisions of the stomatal lineage. RBR1 inhibits the activity of E2F-DP, a heterodimeric transcription factor that activates CDKB1;1. Inactivation of RBR1 or overexpression of E2F-DP leads to an increased num ...
... 2007). Another cell cycle regulator, the RBR1 protein, appears to be involved in asymmetric divisions of the stomatal lineage. RBR1 inhibits the activity of E2F-DP, a heterodimeric transcription factor that activates CDKB1;1. Inactivation of RBR1 or overexpression of E2F-DP leads to an increased num ...
analysis of the significance of a periodic, cell size
... • Present address: National Vegetable Research Station, Wellesbourne, Warwick CV35 9EF, England. ...
... • Present address: National Vegetable Research Station, Wellesbourne, Warwick CV35 9EF, England. ...
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... For conventional observations, root tips were prepared and embedded in Spurr resin as follows: roots were fixed in 1% paraformaldehyde and 2% glutaraldehyde in sodium cacodylate buffer (0.1 M, pH 6.8) for 1 h, washed thoroughly and soaked in 1% tannic acid for 1 h. Post-fixation was for 1 h in 1% aq ...
... For conventional observations, root tips were prepared and embedded in Spurr resin as follows: roots were fixed in 1% paraformaldehyde and 2% glutaraldehyde in sodium cacodylate buffer (0.1 M, pH 6.8) for 1 h, washed thoroughly and soaked in 1% tannic acid for 1 h. Post-fixation was for 1 h in 1% aq ...
Antimicrobial Agents and Chemotherapy
... showed that these cells were swollen, suggesting that the envelope was impaired by the presence of diumycin. Diumymin concentrations between I and 100 ,ug per ml gave typical lysis curves. Vancomycin also caused lysis of B. cereus. It is concluded that the iifluence of diumycin on the growth of S. a ...
... showed that these cells were swollen, suggesting that the envelope was impaired by the presence of diumycin. Diumymin concentrations between I and 100 ,ug per ml gave typical lysis curves. Vancomycin also caused lysis of B. cereus. It is concluded that the iifluence of diumycin on the growth of S. a ...
The Plant Extracellular Matrix: News from the Cell`s
... flotation centrifugation, and a sequencedependent glucanase was used to show that the synthase produced the expected products, cellotriosyl and cellotetraosyl unit structures, in vitro (Gibeaut and Carpita, 1994). However, a callose synthase activity was observed in the maize Golgi membranes in addi ...
... flotation centrifugation, and a sequencedependent glucanase was used to show that the synthase produced the expected products, cellotriosyl and cellotetraosyl unit structures, in vitro (Gibeaut and Carpita, 1994). However, a callose synthase activity was observed in the maize Golgi membranes in addi ...
Практичне заняття № 1
... E. central axial cylinder ANSWER: A 80. For a typical crossing tissue cells that are in the primary roots structure? A. endoderm B. pericycle C. mesoderm D. central axis cylinder E. exoderm ANSWER: A 81. What type of vascular bundle is typical for the primary anatomic structure root? A. radial B. co ...
... E. central axial cylinder ANSWER: A 80. For a typical crossing tissue cells that are in the primary roots structure? A. endoderm B. pericycle C. mesoderm D. central axis cylinder E. exoderm ANSWER: A 81. What type of vascular bundle is typical for the primary anatomic structure root? A. radial B. co ...
Intracellular Triggering of Fas Aggregation and Recruitment of
... death receptors was analyzed by immunofluorescence flow cytometry in 4 105 cells as described previously (12, 31) in a Becton Dickinson FACSCalibur™ flow cytometer using anti-Fas SM1/1 mAb (Bender MedSystems) and specific antibodies against TNFR1 and TRAIL-R2/DR5 (Qbiogene, Oncogene Research Produ ...
... death receptors was analyzed by immunofluorescence flow cytometry in 4 105 cells as described previously (12, 31) in a Becton Dickinson FACSCalibur™ flow cytometer using anti-Fas SM1/1 mAb (Bender MedSystems) and specific antibodies against TNFR1 and TRAIL-R2/DR5 (Qbiogene, Oncogene Research Produ ...
Tumor Heterogeneity - Barbara Ann Karmanos Cancer Institute
... pate that aneuploidy itself would result in variant formation, and indeed some aneuploid tumor lines are unstable (81), in our experience aneuploid mammary lines in vivo can be highly vari able or relatively stable (30, 57). Recent determinations of cell variant production rates have tended to direc ...
... pate that aneuploidy itself would result in variant formation, and indeed some aneuploid tumor lines are unstable (81), in our experience aneuploid mammary lines in vivo can be highly vari able or relatively stable (30, 57). Recent determinations of cell variant production rates have tended to direc ...
Vascular Disorders
... • During hemangioma formation, vasculogenesis as well as angiogenesis might occur Vasculogenesis: de novo formation of vessels from progenitor/stem cells Angiogenesis: formation of new vessels from existing ones ...
... • During hemangioma formation, vasculogenesis as well as angiogenesis might occur Vasculogenesis: de novo formation of vessels from progenitor/stem cells Angiogenesis: formation of new vessels from existing ones ...
Total credit hours = 4 - College of Micronesia
... reasons why, and the ways in which, a scientist conducts controlled experiments. 1.2 Demonstrate knowledge of the scientific method by conducting at least one laboratory experiment, collecting and analyzing data, and presenting experimental results in a formal laboratory report. ...
... reasons why, and the ways in which, a scientist conducts controlled experiments. 1.2 Demonstrate knowledge of the scientific method by conducting at least one laboratory experiment, collecting and analyzing data, and presenting experimental results in a formal laboratory report. ...
Adherens Junctions, Desmosomes and Tight
... membrane. This includes transmembrane and intracellular portions of cell-cell junctions. Thus, desmosomes can no longer be recycled and, from that level on, their destiny is to be degraded by adequate hydrolases. In the horny layer, the morphology of desmosomes changes dramatically. The layered stru ...
... membrane. This includes transmembrane and intracellular portions of cell-cell junctions. Thus, desmosomes can no longer be recycled and, from that level on, their destiny is to be degraded by adequate hydrolases. In the horny layer, the morphology of desmosomes changes dramatically. The layered stru ...