The plasma membrane
... • All organisms are made of cells • The cell is the simplest unit of matter that can live • Cell structure is related to cellular function • All cells are related by their descent from earlier cells ...
... • All organisms are made of cells • The cell is the simplest unit of matter that can live • Cell structure is related to cellular function • All cells are related by their descent from earlier cells ...
Evolutionary tradeoffs in cellular composition across
... and, as can be inferred from our later findings, conversion to mass units can be complicated as cell density is not constant with cell size (we later find that density is greatest for the smallest and largest bacteria with a minimum value of 1.06 × 106 g m − 3 for an intermediate cell size of 4.92 × ...
... and, as can be inferred from our later findings, conversion to mass units can be complicated as cell density is not constant with cell size (we later find that density is greatest for the smallest and largest bacteria with a minimum value of 1.06 × 106 g m − 3 for an intermediate cell size of 4.92 × ...
Review Article
... has shed light on how progress through the cell cycle is controlled at the molecular level. Accumulated experimental evidence has resulted in the formulation of an integrated model of how S. cerevisiae controls its mitotic cell cycle, which has wider implications for cell cycle control in eukaryotes ...
... has shed light on how progress through the cell cycle is controlled at the molecular level. Accumulated experimental evidence has resulted in the formulation of an integrated model of how S. cerevisiae controls its mitotic cell cycle, which has wider implications for cell cycle control in eukaryotes ...
Mechanisms and cellular roles of local protein synthesis in mammalian cells
... mRNA played a role in dendritic spine formation of rodent hippocampal neurons [27,28]. A second role for localized translation in neuron cytoplasm is in synaptic plasticity (Figure 1). Early studies examining the long-term changes that occur at synapses following stimulation recognized that new prot ...
... mRNA played a role in dendritic spine formation of rodent hippocampal neurons [27,28]. A second role for localized translation in neuron cytoplasm is in synaptic plasticity (Figure 1). Early studies examining the long-term changes that occur at synapses following stimulation recognized that new prot ...
Modelling the structural response of an eukaryotic cell in the optical
... Now, the numerically obtained σ on the cell can be categorized into one of three cases based on the ratio ω /ρ, where ω is the half width of the laser beam at the cell and ρ is the radius of the cell: (i) ω /ρ < 1, (ii) ω /ρ ~ 1 and (iii) ω/ρ > 1. For each of these cases, an example of the analytic ...
... Now, the numerically obtained σ on the cell can be categorized into one of three cases based on the ratio ω /ρ, where ω is the half width of the laser beam at the cell and ρ is the radius of the cell: (i) ω /ρ < 1, (ii) ω /ρ ~ 1 and (iii) ω/ρ > 1. For each of these cases, an example of the analytic ...
Signalling in Plant Lateral Organ Development
... be integrated with intrinsic developmental processes. Cell–cell interactions in animal development can be broadly classified according to the distances over which the signals act. Morphogens, which are involved in specifying major axes of asymmetry, such as the body and appendage axes of Drosophila, ...
... be integrated with intrinsic developmental processes. Cell–cell interactions in animal development can be broadly classified according to the distances over which the signals act. Morphogens, which are involved in specifying major axes of asymmetry, such as the body and appendage axes of Drosophila, ...
Migration Cues Induce Chromatin Alterations
... relative exchange rate of H1 molecules on chromatin in living cells in real time (15,16). Transfected H1E–GFP was photobleached within defined nuclear areas, and the recovery of the fluorescence within the photobleached areas was monitored. The rate of recovery is inversely proportional to the time ...
... relative exchange rate of H1 molecules on chromatin in living cells in real time (15,16). Transfected H1E–GFP was photobleached within defined nuclear areas, and the recovery of the fluorescence within the photobleached areas was monitored. The rate of recovery is inversely proportional to the time ...
Anatomy & physiology of cells
... function in living things. Cells vary in their shape size, and arrangements but all cells have similar components, each with a particular function. Some of the 100 trillion of cells make up human body. All human cell are microscopic in size, shape and function. The diameter range from 7.5 micrometer ...
... function in living things. Cells vary in their shape size, and arrangements but all cells have similar components, each with a particular function. Some of the 100 trillion of cells make up human body. All human cell are microscopic in size, shape and function. The diameter range from 7.5 micrometer ...
Cellular Structure and Function
... able to quickly pass substances into and out of the cell. For example, it must be able to pass nutrients and oxygen into the cell and waste products out of the cell. Anything that enters or leaves a cell must cross its outer surface. It is this need to pass substances across the surface that limits ...
... able to quickly pass substances into and out of the cell. For example, it must be able to pass nutrients and oxygen into the cell and waste products out of the cell. Anything that enters or leaves a cell must cross its outer surface. It is this need to pass substances across the surface that limits ...
Fission yeast Myo51 is a meiotic spindle pole body component with
... The actin and microtubule cytoskeletons have key roles in the coordination and execution of cell fusion in fission yeast (Petersen et al., 1998a; Petersen et al., 1998b). We therefore explored the reliance of Myo51 upon the integrity of each cytoskeleton for recruitment to the fusing tip. Addition o ...
... The actin and microtubule cytoskeletons have key roles in the coordination and execution of cell fusion in fission yeast (Petersen et al., 1998a; Petersen et al., 1998b). We therefore explored the reliance of Myo51 upon the integrity of each cytoskeleton for recruitment to the fusing tip. Addition o ...
Role of Silicon in Diatom Metabolism. Messenger
... occurred between mid-S phase and cell separation in both synchronies, they are apparently cell cycle stage-specific. Before their increase, these polypeptides were below the level of detection with silver stain and thus represented less than 0.01 % of the soluble protein. Comparison of the maximum s ...
... occurred between mid-S phase and cell separation in both synchronies, they are apparently cell cycle stage-specific. Before their increase, these polypeptides were below the level of detection with silver stain and thus represented less than 0.01 % of the soluble protein. Comparison of the maximum s ...
Autoantibody-Mediated Dysfunction of Sympathetic Neurons in
... Staining properties, cell viability, and noradrenaline synthesis of sympathetic neurons during treatment with IgG from patients with Guillain-Barré syndrome (GBS) and control patients. A, Staining of sympathetic neurons with GBS-IgG (green) and antibody against tyrosine hydroxylase (red, bar = 50 μm ...
... Staining properties, cell viability, and noradrenaline synthesis of sympathetic neurons during treatment with IgG from patients with Guillain-Barré syndrome (GBS) and control patients. A, Staining of sympathetic neurons with GBS-IgG (green) and antibody against tyrosine hydroxylase (red, bar = 50 μm ...
The role of desmoplakin during epidermal development
... I expect that the mutant desmoplakin embryos will contain epithelial cells that do not differentiate correctly due to the disruption of normal cell function. If this is the case, failure of cell differentiation will be easily visualized using electron microscopy. Without proper cell differentiation, ...
... I expect that the mutant desmoplakin embryos will contain epithelial cells that do not differentiate correctly due to the disruption of normal cell function. If this is the case, failure of cell differentiation will be easily visualized using electron microscopy. Without proper cell differentiation, ...
Microautophagy and macropexophagy may occur
... presence of glucose (Fig. 2A). Organelle degradation, demonstrated by the accumulation of peroxisomal AO into vacuoles by immunocytochemistry, was evident already after 30 min of incubation (Fig. 2F). Additionally, exposure of cells to nitrogen-limiting conditions showed the expected morphology of o ...
... presence of glucose (Fig. 2A). Organelle degradation, demonstrated by the accumulation of peroxisomal AO into vacuoles by immunocytochemistry, was evident already after 30 min of incubation (Fig. 2F). Additionally, exposure of cells to nitrogen-limiting conditions showed the expected morphology of o ...
Stimulation of taxol production by combined salicylic acid elicitation and... Taxus baccata Ayatollah Rezaei
... properties, this enhanced free radical formation and lipid peroxidation under the treatments may have also brought about an increase in membrane permeability or loss of membrane integrity, as evidenced by the increase in extracellular taxol (Table1). The occurrence of lipid peroxidation indicates th ...
... properties, this enhanced free radical formation and lipid peroxidation under the treatments may have also brought about an increase in membrane permeability or loss of membrane integrity, as evidenced by the increase in extracellular taxol (Table1). The occurrence of lipid peroxidation indicates th ...
How Have Plant Cell Walls Evolved?1
... in cases where there is a paucity of prior knowledge about a particular cell wall type. In this regard we have found that a combinatorial approach is highly effective such that CoMPP is used for rapid polysaccharide screening to identify a subset of samples that are then analyzed in more detail usin ...
... in cases where there is a paucity of prior knowledge about a particular cell wall type. In this regard we have found that a combinatorial approach is highly effective such that CoMPP is used for rapid polysaccharide screening to identify a subset of samples that are then analyzed in more detail usin ...
Dynamics of Ultrastructural Characters of Drosophyllum lusitanicum
... 1998; Robinson et al., 1998; Nebenführ and Staehelin, 2001; Vitale and Galili, 2001). CCVs produced by the TGNs are very small structures, usually 60-80 nm in diameter (Coleman et al., 1987; Beevers, 1996). Clathrin is a cytosolic protein that forms a characteristic lattice on the surface of the ves ...
... 1998; Robinson et al., 1998; Nebenführ and Staehelin, 2001; Vitale and Galili, 2001). CCVs produced by the TGNs are very small structures, usually 60-80 nm in diameter (Coleman et al., 1987; Beevers, 1996). Clathrin is a cytosolic protein that forms a characteristic lattice on the surface of the ves ...
Permanent cell cycle exit in G2 phase after DNA damage in normal
... activation of Cdk1, as no hypophosphorylated Cdk1 (isoform 1) could be detected with cyclin B1. In contrast, in ICRF-193-treated cells, cyclin B1 complexes contained a substantial fraction of hypophosphorylated and active Cdk1 (isoform 1 in Figure 4C). These results implied that, in E6 cells, the de ...
... activation of Cdk1, as no hypophosphorylated Cdk1 (isoform 1) could be detected with cyclin B1. In contrast, in ICRF-193-treated cells, cyclin B1 complexes contained a substantial fraction of hypophosphorylated and active Cdk1 (isoform 1 in Figure 4C). These results implied that, in E6 cells, the de ...
Non-genetic heterogeneity of cells in development: more than just
... actually dynamic, reversible and lack locus specificity. Therefore, they are not, strictly speaking, explanatory, but represent a molecular mechanism for implementing stable gene expression patterns that first have to be orchestrated by the transcriptional network. It is this gene regulatory network ...
... actually dynamic, reversible and lack locus specificity. Therefore, they are not, strictly speaking, explanatory, but represent a molecular mechanism for implementing stable gene expression patterns that first have to be orchestrated by the transcriptional network. It is this gene regulatory network ...
Precise control of plant stem cell activity through parallel regulatory
... The use of molecular markers relies on an absolute correlation between cell identity/behaviour and the expression of the marker gene, and we know of no examples in the RC where this is the case. Indeed, the behaviour of many characterised RC marker genes changes in various mutant backgrounds (e.g. W ...
... The use of molecular markers relies on an absolute correlation between cell identity/behaviour and the expression of the marker gene, and we know of no examples in the RC where this is the case. Indeed, the behaviour of many characterised RC marker genes changes in various mutant backgrounds (e.g. W ...
Programmed cell death during plant growth and development
... implying that in this species initiation of the synergid death program may depend on signals from the pollen tube. Complete degeneration, however, does not occur until after penetration by the pollen tube when the synergid vacuole collapses and the pollen tube releases its contents into the synergid ...
... implying that in this species initiation of the synergid death program may depend on signals from the pollen tube. Complete degeneration, however, does not occur until after penetration by the pollen tube when the synergid vacuole collapses and the pollen tube releases its contents into the synergid ...
Bacteria Coloring WS
... under the Earth's crust that grow as long rods with a star-shaped cross-section. The large surface area to volume ratio of this morphology may give these bacteria an advantage in nutrient-poor environments. This wide variety of shapes is determined by the bacterial cell wall and cytoskeleton, and i ...
... under the Earth's crust that grow as long rods with a star-shaped cross-section. The large surface area to volume ratio of this morphology may give these bacteria an advantage in nutrient-poor environments. This wide variety of shapes is determined by the bacterial cell wall and cytoskeleton, and i ...