Development of neural tube basal lamina during neurulation and
... Therefore the entire process of development can be followed by serial sectioning individual embryos. We have chosen 9-5-day-old mouse embryos because at this stage the complete spectrum of NC cell development can be studied. In addition, to confirm that the development of BL through time at a partic ...
... Therefore the entire process of development can be followed by serial sectioning individual embryos. We have chosen 9-5-day-old mouse embryos because at this stage the complete spectrum of NC cell development can be studied. In addition, to confirm that the development of BL through time at a partic ...
in pdf format
... has large economic impacts in the horse industry (1, 2). In general, there are two groups of mares: those that are capable of clearing bacteria that contaminate the uterus following parturition or intrauterine manipulation; and those that are prone to infection, usually older or barren mares with a ...
... has large economic impacts in the horse industry (1, 2). In general, there are two groups of mares: those that are capable of clearing bacteria that contaminate the uterus following parturition or intrauterine manipulation; and those that are prone to infection, usually older or barren mares with a ...
gland - Sinoe Medical Association
... secretion goes through the basal lamina, moves into the underlying connective tissue, and enters the vascular system. Endocrine glands lack a duct system. Paracrine Glands – These glands are similar to endocrine glands, but their ...
... secretion goes through the basal lamina, moves into the underlying connective tissue, and enters the vascular system. Endocrine glands lack a duct system. Paracrine Glands – These glands are similar to endocrine glands, but their ...
PDF
... Therefore the entire process of development can be followed by serial sectioning individual embryos. We have chosen 9-5-day-old mouse embryos because at this stage the complete spectrum of NC cell development can be studied. In addition, to confirm that the development of BL through time at a partic ...
... Therefore the entire process of development can be followed by serial sectioning individual embryos. We have chosen 9-5-day-old mouse embryos because at this stage the complete spectrum of NC cell development can be studied. In addition, to confirm that the development of BL through time at a partic ...
Research Databases
... Over time, mutations accumulate in mitochondrial genes. These and other changes may cause the power plants to work less efficiently, producing less energy for the same amount of glucose -- the way a less energy-efficient car travels fewer miles on a tank of gas. Cells eventually become less able to ...
... Over time, mutations accumulate in mitochondrial genes. These and other changes may cause the power plants to work less efficiently, producing less energy for the same amount of glucose -- the way a less energy-efficient car travels fewer miles on a tank of gas. Cells eventually become less able to ...
Unit 6 Microorganisms & Fungi
... Red algae - able to live at great depths due to their efficiency in harvesting light energy Red algae contain chlorophyll a & reddish accessory pigments called phycobilins ...
... Red algae - able to live at great depths due to their efficiency in harvesting light energy Red algae contain chlorophyll a & reddish accessory pigments called phycobilins ...
Chapter 05 Membranes
... of a protein called spectrin links proteins in the plasma membrane with actin filaments in the cell’s cytoskeleton. Membranes use networks of other proteins to control the lateral movements of some key membrane proteins, anchoring them to specific sites. 4. Cell-surface markers. As you learned i ...
... of a protein called spectrin links proteins in the plasma membrane with actin filaments in the cell’s cytoskeleton. Membranes use networks of other proteins to control the lateral movements of some key membrane proteins, anchoring them to specific sites. 4. Cell-surface markers. As you learned i ...
Characterization of Citrate Transport through the Plasma Membrane
... purified plasma membranes from each cell type and then measured the activities of the enzymes. We used an aqueous polymer two-phase system, which is known to be one of the most reliable methods for isolating highly purified plasma membrane. As shown in Table 2, the activities of the vanadate-sensiti ...
... purified plasma membranes from each cell type and then measured the activities of the enzymes. We used an aqueous polymer two-phase system, which is known to be one of the most reliable methods for isolating highly purified plasma membrane. As shown in Table 2, the activities of the vanadate-sensiti ...
The posterior section of the chick`s area pellucida
... (1988) fixative, which contained 4% paraformaldehyde in 0.1 M PBS, pH 7.4. The fixed blastoderms were rinsed twice for 10 minutes in 0.1 M PBS and then kept in 70% ethanol before embedding in paraffin. The material was transversally serially sectioned at 15 µm and mounted on slides coated with gelat ...
... (1988) fixative, which contained 4% paraformaldehyde in 0.1 M PBS, pH 7.4. The fixed blastoderms were rinsed twice for 10 minutes in 0.1 M PBS and then kept in 70% ethanol before embedding in paraffin. The material was transversally serially sectioned at 15 µm and mounted on slides coated with gelat ...
The control of sexual identity in the Drosophila
... when XY germ cells are present in females (as discussed above), indicating that Sxl mutant XX germ cells are masculinized. Indeed, male-specific gene expression is observed in XX germ cells that lack Sxl (Staab et al., 1996; Wei et al., 1994), and Sxl functions to promote female germ cell developmen ...
... when XY germ cells are present in females (as discussed above), indicating that Sxl mutant XX germ cells are masculinized. Indeed, male-specific gene expression is observed in XX germ cells that lack Sxl (Staab et al., 1996; Wei et al., 1994), and Sxl functions to promote female germ cell developmen ...
Seasonal Changes of Plasma Membrane H
... Article, publication date, and citation information can be found at www.plantphysiol.org/cgi/doi/10.1104/pp.003905. ...
... Article, publication date, and citation information can be found at www.plantphysiol.org/cgi/doi/10.1104/pp.003905. ...
Laboratory Research, Cloning, and Human Cell Lines
... The Royal Commission heard considerable evidence from researchers that the approval procedures for frequently used genetic modification research techniques in laboratories using lowrisk organisms were overly complex, impractical, costly and time consuming. The Royal Commission agreed that it was app ...
... The Royal Commission heard considerable evidence from researchers that the approval procedures for frequently used genetic modification research techniques in laboratories using lowrisk organisms were overly complex, impractical, costly and time consuming. The Royal Commission agreed that it was app ...
Syllabus For PG Course In Botany Under CBCS 2015-16
... Plant Vacuole: Tonoplast membrane, micro bodies and Lysosomes Transporters; Vacuole as a storage organelle Plasmodesmata: Structure; role in movement of molecules; Comparison with gap junctions; Cytoskeleton: Organization and role of microtubules and microfilaments; Motor movements PAPER-CC-102 MOLE ...
... Plant Vacuole: Tonoplast membrane, micro bodies and Lysosomes Transporters; Vacuole as a storage organelle Plasmodesmata: Structure; role in movement of molecules; Comparison with gap junctions; Cytoskeleton: Organization and role of microtubules and microfilaments; Motor movements PAPER-CC-102 MOLE ...
Growth of a Tryptophanase-producing Thermophile
... for their ability to support the growth of S. thermophilum. Sucrose (lo%, w/v) was added to Trp-PEP medium to test the effect of osmotic stabilization. Isolation and cultivation of thermophilic bacteria. Approximately 100 mg each of soil, compost or 0.5 ml hot spring water from various locations in ...
... for their ability to support the growth of S. thermophilum. Sucrose (lo%, w/v) was added to Trp-PEP medium to test the effect of osmotic stabilization. Isolation and cultivation of thermophilic bacteria. Approximately 100 mg each of soil, compost or 0.5 ml hot spring water from various locations in ...
Traffic into silence: endomembranes and
... (ESCRT) complexes (Kirchhausen, 2000; Nickel et al, 2002; Gabe Lee et al, 2009; Hurley & Hanson, 2010). The correct targeting or fusion of the transport vesicles relies on organelle-specific tethering factors and SNARE complexes (Faini et al, 2013). The main organelles of the endomembrane system are ...
... (ESCRT) complexes (Kirchhausen, 2000; Nickel et al, 2002; Gabe Lee et al, 2009; Hurley & Hanson, 2010). The correct targeting or fusion of the transport vesicles relies on organelle-specific tethering factors and SNARE complexes (Faini et al, 2013). The main organelles of the endomembrane system are ...
Origin, Early Patterning, and Fate of the Mouse Epiblast
... The PrE differentiates to form the visceral endoderm (VE) and PE. PE cells migrate out of the PrE to line the entire blastocoelic cavity (Fig. 11–1). They secrete extracellular matrix components that assemble to form a specialized membrane called Reichert’s membrane, which surrounds the embryo. VE c ...
... The PrE differentiates to form the visceral endoderm (VE) and PE. PE cells migrate out of the PrE to line the entire blastocoelic cavity (Fig. 11–1). They secrete extracellular matrix components that assemble to form a specialized membrane called Reichert’s membrane, which surrounds the embryo. VE c ...
Hierarchies of plant stiffness
... effect of these forces is particularly strong in large, long-lived plants such as trees, and the ability of plants to withstand these stresses is dependent on properties of the stem (Section 2.2. below) as well as the distribution of weight and formation of overall leaf canopy shape by the pattern o ...
... effect of these forces is particularly strong in large, long-lived plants such as trees, and the ability of plants to withstand these stresses is dependent on properties of the stem (Section 2.2. below) as well as the distribution of weight and formation of overall leaf canopy shape by the pattern o ...
Human red blood cells-1 - Science Publishing Group
... Aging of the red blood cell revealed a decrease of cholesterol-to-phospholipids moral ratio , followed by a marked decrease in the activities of the membrane-bound enzymes, Na+,K+-ATPase [E.C.3.6.1.7] which is the marker of erythroid differentiation [30], is inactive in the intact membrane and is ac ...
... Aging of the red blood cell revealed a decrease of cholesterol-to-phospholipids moral ratio , followed by a marked decrease in the activities of the membrane-bound enzymes, Na+,K+-ATPase [E.C.3.6.1.7] which is the marker of erythroid differentiation [30], is inactive in the intact membrane and is ac ...
Co-ordination of signalling elements in guard cell ion
... network of signalling cascades that can be triggered, among others, by plant hormones. ABA and auxin as regulators of stomatal aperture have received most attention to date. It is clear now that the effect of these hormones on ion channels is mediated by second messengers pH and [Ca2+] . The effect ...
... network of signalling cascades that can be triggered, among others, by plant hormones. ABA and auxin as regulators of stomatal aperture have received most attention to date. It is clear now that the effect of these hormones on ion channels is mediated by second messengers pH and [Ca2+] . The effect ...
FAK suppresses Rho activity to promote focal adhesion turnover
... required for the transient decrease in Rho activity seen at early times during cell spreading when cells are rapidly extending lamellipodia and increasing their contact area with the substratum. Second, rapid focal adhesion turnover correlates with low Rho activity. Focal adhesions are unstable in r ...
... required for the transient decrease in Rho activity seen at early times during cell spreading when cells are rapidly extending lamellipodia and increasing their contact area with the substratum. Second, rapid focal adhesion turnover correlates with low Rho activity. Focal adhesions are unstable in r ...
Polypeptide Composition of Chlamydia trachomatis
... confluent, DEAE-dextran-treated HeLa 229 cell monolayers on 13 mm diameter coverslips. The monolayers were incubated to permit inclusion development, stained with Hoechst 3 3258 and the numbers of inclusions were counted (Salari & Ward, 1979). The dilution of yolk sac-derived chlamydiae capable of i ...
... confluent, DEAE-dextran-treated HeLa 229 cell monolayers on 13 mm diameter coverslips. The monolayers were incubated to permit inclusion development, stained with Hoechst 3 3258 and the numbers of inclusions were counted (Salari & Ward, 1979). The dilution of yolk sac-derived chlamydiae capable of i ...
Complex Receptive Fields in Primary Visual Cortex
... Martin and Whitteridge 1984; Hirsch and others 1998, 2002; Martinez and others 1999, 2002). Second, in vivo recordings from neurons that were intracellularly labeled demonstrated that most layer 4 simple cells project to the superficial layers of the cortex (Gilbert and Wiesel 1979; Martin and Whitt ...
... Martin and Whitteridge 1984; Hirsch and others 1998, 2002; Martinez and others 1999, 2002). Second, in vivo recordings from neurons that were intracellularly labeled demonstrated that most layer 4 simple cells project to the superficial layers of the cortex (Gilbert and Wiesel 1979; Martin and Whitt ...
Functional interaction between a novel protein phosphatase 2A
... phosphatase activity seen in these assays was indeed PP2A activity, okadaic acid was added to several of the immunoprecipitates to a ®nal concentration of 5 nM. This concentration of okadaic acid will speci®cally inhibit PP2A, but not PP1 (Cohen et al., 1989; Honkanan et al., 1994). Figure 3c shows ...
... phosphatase activity seen in these assays was indeed PP2A activity, okadaic acid was added to several of the immunoprecipitates to a ®nal concentration of 5 nM. This concentration of okadaic acid will speci®cally inhibit PP2A, but not PP1 (Cohen et al., 1989; Honkanan et al., 1994). Figure 3c shows ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.