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... Fig. 2. Mesoderm induction by a pellet of XTC cells but not by a pellet of XL cells. Isolated Xenopus blastula animal pole regions were pressed against a pellet of XTC or XL cells and allowed to develop for 65 h at 18-22 °C in modified L15 medium containing 10 % foetal calf serum. After fixation and ...
... Fig. 2. Mesoderm induction by a pellet of XTC cells but not by a pellet of XL cells. Isolated Xenopus blastula animal pole regions were pressed against a pellet of XTC or XL cells and allowed to develop for 65 h at 18-22 °C in modified L15 medium containing 10 % foetal calf serum. After fixation and ...
Non -Living Components of plant cell 1
... different in size and number depends on the plants. The grain Characterized by it's contain Contains the hilum that converted by starch layer , it mat be contain one or more Hilum , The Hilum may be central like Rice and Maize or non-central like Potato or Cracked like Bean, the starch grains classi ...
... different in size and number depends on the plants. The grain Characterized by it's contain Contains the hilum that converted by starch layer , it mat be contain one or more Hilum , The Hilum may be central like Rice and Maize or non-central like Potato or Cracked like Bean, the starch grains classi ...
SOMATIC CELL COUNTS
... numbers may fluctuate up and down, but will generally remain abnormally high (Table 2). Such abnormal numbers of somatic cells will continue after bacteria are eliminated until healing of the gland occurs. Schultz (1977) reported that it may take days, weeks, or longer for SCC to decrease after the ...
... numbers may fluctuate up and down, but will generally remain abnormally high (Table 2). Such abnormal numbers of somatic cells will continue after bacteria are eliminated until healing of the gland occurs. Schultz (1977) reported that it may take days, weeks, or longer for SCC to decrease after the ...
Gene Section PLA2G2A (phospholipase A2, group IIA (platelets, synovial fluid))
... thus unperturbed cells are poor substrates for extracellular PLA2G2A and thereby prevent indiscriminate hydrolysis of healthy cells. Consistent with this idea, healthy mammalian cells are highly resistant to exogenous PLA2G2A, requiring very high concentration of the protein to elicit arachidonic ac ...
... thus unperturbed cells are poor substrates for extracellular PLA2G2A and thereby prevent indiscriminate hydrolysis of healthy cells. Consistent with this idea, healthy mammalian cells are highly resistant to exogenous PLA2G2A, requiring very high concentration of the protein to elicit arachidonic ac ...
Journal of Bacteriology
... were prepared as described above. The cells were contrasted by the glutaraldehyde-ruthenium red-uranyl acetate (G/RR/ UA) procedure (24). In some cases, bacteria were pretreated for 30 min at room temperature with immunoaffinity-purified trifoliin A (12) coupled with colloidal gold (20) before treat ...
... were prepared as described above. The cells were contrasted by the glutaraldehyde-ruthenium red-uranyl acetate (G/RR/ UA) procedure (24). In some cases, bacteria were pretreated for 30 min at room temperature with immunoaffinity-purified trifoliin A (12) coupled with colloidal gold (20) before treat ...
Investigations on Natural Frequencies of Individual Spherical and
... organisms [1]. In contrast with most material systems, the mechanical behaviour of a living cell cannot be characterized simply in terms of fixed properties, as the cell structure is a dynamic system that adapts to its local mechanochemical environment. Cells have diverse capabilities and express th ...
... organisms [1]. In contrast with most material systems, the mechanical behaviour of a living cell cannot be characterized simply in terms of fixed properties, as the cell structure is a dynamic system that adapts to its local mechanochemical environment. Cells have diverse capabilities and express th ...
Liquid-Tissue Mechanics in Amphibian Gastrulation: Germ
... quite loosely, to other cells on all sides. By contrast, the outer faces of the surface cell populations appear to be shiny—"coated" in Holtfreter's terminology. We find, as he did (op. cit.), that the shiny sides of these surface cells are non-adhesive with respect to blastula and gastrula cells of ...
... quite loosely, to other cells on all sides. By contrast, the outer faces of the surface cell populations appear to be shiny—"coated" in Holtfreter's terminology. We find, as he did (op. cit.), that the shiny sides of these surface cells are non-adhesive with respect to blastula and gastrula cells of ...
Preview Sample 1
... Slides, transparencies, and electron micrographs are very useful for pointing out the major features of cells and organelles. These can be obtained from Carolina Biological Supply Company, Burlington, NC. Numerous WWW resources are also available such as http://www.cellbio.com. ...
... Slides, transparencies, and electron micrographs are very useful for pointing out the major features of cells and organelles. These can be obtained from Carolina Biological Supply Company, Burlington, NC. Numerous WWW resources are also available such as http://www.cellbio.com. ...
Initiation of intracellular offspring in Epulopiscium
... Intracellular offspring of Epulopiscium large offspring; the majority (80%) contained two offspring. It was these intracellular offspring that possessed polar rings of FtsZ (see illustration Fig. 1). Data collected from this and four other N. tonganus samples are described in more detail below. Imm ...
... Intracellular offspring of Epulopiscium large offspring; the majority (80%) contained two offspring. It was these intracellular offspring that possessed polar rings of FtsZ (see illustration Fig. 1). Data collected from this and four other N. tonganus samples are described in more detail below. Imm ...
Microelectrode techniques in plant cells and microorganisms
... uncertainty awaits resolution. Enzymatically produced protoplasts also lack the plasma membrane/extracellular matrix connections as a result of wall removal. The cell wall performs many functions which may have significant bearing on the physiology of the cell. For example, plasma membrane-wall conn ...
... uncertainty awaits resolution. Enzymatically produced protoplasts also lack the plasma membrane/extracellular matrix connections as a result of wall removal. The cell wall performs many functions which may have significant bearing on the physiology of the cell. For example, plasma membrane-wall conn ...
Protein Expression of L-Type Amino Acid Transporter-2 (LAT
... their appearance in milk. Thus, the L-type amino acid transporter-2 (LAT-2) in mammary tissues may be regulated by lactating period. However, the regulatory mechanism of this protein expression has not been yet studied in porcine mammary tissues. The objective of this study was to determine the phys ...
... their appearance in milk. Thus, the L-type amino acid transporter-2 (LAT-2) in mammary tissues may be regulated by lactating period. However, the regulatory mechanism of this protein expression has not been yet studied in porcine mammary tissues. The objective of this study was to determine the phys ...
Sites of Synthesis of Urokinase and Tissue
... seinolytic activities with specific antibodies, and by the colocalizations of caseinolytic activities with mRNA distributions. To distinguish u-PA from t-PA, we found that amiloride was most useful for practical reasons, since it inhibits u-PA catalytic activity as effectively as specific antibodies ...
... seinolytic activities with specific antibodies, and by the colocalizations of caseinolytic activities with mRNA distributions. To distinguish u-PA from t-PA, we found that amiloride was most useful for practical reasons, since it inhibits u-PA catalytic activity as effectively as specific antibodies ...
Full Text - Harvard University
... (18), demonstrating the importance of the mechanical properties of conduit walls in water transport (19). Primary-wall lignification also influences the mechanical interactions between cells. For example, adjacent tracheids commonly pull apart in trees with decreased primary-wall lignification (20). ...
... (18), demonstrating the importance of the mechanical properties of conduit walls in water transport (19). Primary-wall lignification also influences the mechanical interactions between cells. For example, adjacent tracheids commonly pull apart in trees with decreased primary-wall lignification (20). ...
Cells in their social context Cell Junctions
... Anchoring junctions provide mechanical strength. This is especially important to tissues encountering severe mechanical stress like heart, muscle, and skin. They connect the cytoskeleton to neighboring cells or the extracellular matrix. Anchoring Junctions are composed primary of two main classes of ...
... Anchoring junctions provide mechanical strength. This is especially important to tissues encountering severe mechanical stress like heart, muscle, and skin. They connect the cytoskeleton to neighboring cells or the extracellular matrix. Anchoring Junctions are composed primary of two main classes of ...
12079_2017_389_MOESM1_ESM
... SUPPLEMENTARY FIGURE 7. Figure 5 from the main text but without error bars. Cellular proliferation of (A) MDA-MB-231 and (B) 184A1L5 cells over 7-day duration when Akt was inhibited alone or together with other proteins. Plots show the proliferation profiles when no protein was inhibited (solid bla ...
... SUPPLEMENTARY FIGURE 7. Figure 5 from the main text but without error bars. Cellular proliferation of (A) MDA-MB-231 and (B) 184A1L5 cells over 7-day duration when Akt was inhibited alone or together with other proteins. Plots show the proliferation profiles when no protein was inhibited (solid bla ...
Conservation of Cell Order in Desiccated Mesophyll of
... Understanding of the basis of desiccation tolerance in mature plant tissues that survive extreme dehydration requires knowledge of the degree of cellular order in the dry state. Generally, aqueous fixatives have been used in ultrastructural studies of such material, and these are known to be inadequ ...
... Understanding of the basis of desiccation tolerance in mature plant tissues that survive extreme dehydration requires knowledge of the degree of cellular order in the dry state. Generally, aqueous fixatives have been used in ultrastructural studies of such material, and these are known to be inadequ ...
ppt - Chair of Computational Biology
... by using binding sites of transcriptional regulators under the undifferentiated state. ...
... by using binding sites of transcriptional regulators under the undifferentiated state. ...
In vivo measurement of cytosolic and mitochondrial pH using a pH
... environments such as deviant temperature, high or low osmotic pressure, oxidative stress and exposure to weak organic acids. The mechanisms by which they adapt to these environments are often poorly understood. To study these adaptive responses we rely on techniques that focus on various levels of c ...
... environments such as deviant temperature, high or low osmotic pressure, oxidative stress and exposure to weak organic acids. The mechanisms by which they adapt to these environments are often poorly understood. To study these adaptive responses we rely on techniques that focus on various levels of c ...
2. Archenteron Morphogenesis in the Sea Urchin
... The progression of development involves an impressive array of morphoge netic rearrangements, each of which involves the coordination of multiple cel lular functions and molecular events. We have been studying gastrulation in the sea urchin embryo as a relatively simple model system in an attempt ...
... The progression of development involves an impressive array of morphoge netic rearrangements, each of which involves the coordination of multiple cel lular functions and molecular events. We have been studying gastrulation in the sea urchin embryo as a relatively simple model system in an attempt ...
Chapter 4 – A Tour of the Cell
... • After biomolecules are produced in the ER, they are passed along to flattened stacks of membranes known as Golgi bodies. • The number of Golgi bodies in a cell ranges from one or a few in protists, to 20 or more in animal cells, and several hundred in certain plant cells! • Collectively, these Gol ...
... • After biomolecules are produced in the ER, they are passed along to flattened stacks of membranes known as Golgi bodies. • The number of Golgi bodies in a cell ranges from one or a few in protists, to 20 or more in animal cells, and several hundred in certain plant cells! • Collectively, these Gol ...
Spatial and temporal distribution of the adherens
... the primitive streak. In the head and rostral part of the trunk, it forms by local thickening of the epiblast ahead of Hensen's node along the axis of symmetry of the embryo. No A-CAM-specific fluorescence staining could be detected in the neural plate at this stage (Fig. 1H). The neural plate subse ...
... the primitive streak. In the head and rostral part of the trunk, it forms by local thickening of the epiblast ahead of Hensen's node along the axis of symmetry of the embryo. No A-CAM-specific fluorescence staining could be detected in the neural plate at this stage (Fig. 1H). The neural plate subse ...
Downloaded - The Journal of Immunology
... of latent infection is strongly suggested by much evidence. In fact, EBV-associated PTLD usually arise as a consequence of the impairment of T cell-mediated immunity caused in transplant patients by the immunosuppressive therapy (2), and complete regression of PTLD can be achieved by reducing or dis ...
... of latent infection is strongly suggested by much evidence. In fact, EBV-associated PTLD usually arise as a consequence of the impairment of T cell-mediated immunity caused in transplant patients by the immunosuppressive therapy (2), and complete regression of PTLD can be achieved by reducing or dis ...
The cancer stem cell: premises, promises and challenges
... yet the tumors seemed hierarchically organized when tested functionally. This paper was rapidly followed by similar studies on other solid Revival of the CSC concept. In the early nineties, research on hemato tumors such as brain cancers25 and colon cancers26–28. For a comprepoietic stem cells was ...
... yet the tumors seemed hierarchically organized when tested functionally. This paper was rapidly followed by similar studies on other solid Revival of the CSC concept. In the early nineties, research on hemato tumors such as brain cancers25 and colon cancers26–28. For a comprepoietic stem cells was ...
Tissue engineering
Tissue engineering is the use of a combination of cells, engineering and materials methods, and suitable biochemical and physicochemical factors to improve or replace biological functions. While it was once categorized as a sub-field of biomaterials, having grown in scope and importance it can be considered as a field in its own right.While most definitions of tissue engineering cover a broad range of applications, in practice the term is closely associated with applications that repair or replace portions of or whole tissues (i.e., bone, cartilage, blood vessels, bladder, skin, muscle etc.). Often, the tissues involved require certain mechanical and structural properties for proper functioning. The term has also been applied to efforts to perform specific biochemical functions using cells within an artificially-created support system (e.g. an artificial pancreas, or a bio artificial liver). The term regenerative medicine is often used synonymously with tissue engineering, although those involved in regenerative medicine place more emphasis on the use of stem cells or progenitor cells to produce tissues.