Liquid-Tissue Mechanics in Amphibian Gastrulation: Germ
... "YMO > TNO. we flatten aggregates with quartz fibers calibrated to measure the force of compression. As predicted, under the same flattening force, E aggregates are rounder than M aggregates, which are rounder than N aggregates. Furthermore, a second surface tension relationship can account for the ...
... "YMO > TNO. we flatten aggregates with quartz fibers calibrated to measure the force of compression. As predicted, under the same flattening force, E aggregates are rounder than M aggregates, which are rounder than N aggregates. Furthermore, a second surface tension relationship can account for the ...
Bioorthogonal chemical imaging of metabolic activities in live
... The mammalian hippocampus is an active region of brain metabolism involved in learning, memory formation, and has strong implications in many neurological diseases. Organotypic hippocampal slice culture provides a complex tissue model that mimics the structure and activity in vivo with multiple cell ...
... The mammalian hippocampus is an active region of brain metabolism involved in learning, memory formation, and has strong implications in many neurological diseases. Organotypic hippocampal slice culture provides a complex tissue model that mimics the structure and activity in vivo with multiple cell ...
Cytoplasmic sequestration of the tumor suppressor p53 by a heat
... interacts with Bcl-2 (B-cell lymphoma 2, an apoptosis regulator protein) in the outer mitochondrial membrane subsequently resulting in non-transcriptionally activated apoptosis [29]. Overexpression of mortalin leads to permanent tethering of p53 protein in the cytoplasm [30,31], a phenomenon referre ...
... interacts with Bcl-2 (B-cell lymphoma 2, an apoptosis regulator protein) in the outer mitochondrial membrane subsequently resulting in non-transcriptionally activated apoptosis [29]. Overexpression of mortalin leads to permanent tethering of p53 protein in the cytoplasm [30,31], a phenomenon referre ...
Recruiting Coreceptors to the T Cell Receptor Complex
... Lck to TCRs that had engaged pMHC, thereby enabling TCR-CD3 ITAM phosphorylation by Lck. An attractive feature of this heterodimerization model was that it provided an elegantly simple mechanism for TCR triggering. However, a number of experimental findings soon cast doubt on this model. First, alth ...
... Lck to TCRs that had engaged pMHC, thereby enabling TCR-CD3 ITAM phosphorylation by Lck. An attractive feature of this heterodimerization model was that it provided an elegantly simple mechanism for TCR triggering. However, a number of experimental findings soon cast doubt on this model. First, alth ...
Stem cells in the light of evolution
... In simple single cell organisms such as the amoeba for example, a simple cell division is equivalent to reproduction by which a new organism is created more frequently19. Stem cells of small rodents on the contrary are estimated to replicate about once in four weeks- for cats, it is once in per ten ...
... In simple single cell organisms such as the amoeba for example, a simple cell division is equivalent to reproduction by which a new organism is created more frequently19. Stem cells of small rodents on the contrary are estimated to replicate about once in four weeks- for cats, it is once in per ten ...
Cilia Review Article - Eastern Virginia Medical School
... 1962; Gilula and Satir, 1972). Most cells in the human body will enter the G0 phase, or quiescent stage, after cell division. Primary cilia present in G0 cells are regarded as postmitotic structures of quiescent cells. Cilia assembly includes several different stages, as observed by electron microsc ...
... 1962; Gilula and Satir, 1972). Most cells in the human body will enter the G0 phase, or quiescent stage, after cell division. Primary cilia present in G0 cells are regarded as postmitotic structures of quiescent cells. Cilia assembly includes several different stages, as observed by electron microsc ...
dependent endoderm cell fate specification - EvoDevo
... the proposal that formation of an archenteron and segregation of an endodermal germ layer evolved at the animal pole, and the mechanisms that regulate these processes were moved to the vegetal pole sometime after the divergence of the urbilaterian from the last shared common ancestor with cnidarians ...
... the proposal that formation of an archenteron and segregation of an endodermal germ layer evolved at the animal pole, and the mechanisms that regulate these processes were moved to the vegetal pole sometime after the divergence of the urbilaterian from the last shared common ancestor with cnidarians ...
Using monoclonal antibodies to label living root hairs: a novel tool
... Keywords: Arabidopsis, Root hairs, Live cell labeling, Immunocytochemistry, Polar growth, Cell wall ...
... Keywords: Arabidopsis, Root hairs, Live cell labeling, Immunocytochemistry, Polar growth, Cell wall ...
The Amoeboid Parabasalid Flagellate Gigantomonas herculeaof the
... including the flagella, the cresta and axostyle structures, and cytoplasmic organelles such as Golgi bodies, hydrogenosomes, bacteria inside vacuoles and many vesicles (Figs 13-15). Higher magnification shows that the cytoplasm of the peripheral zone is composed of a microfibrillar network, and also ...
... including the flagella, the cresta and axostyle structures, and cytoplasmic organelles such as Golgi bodies, hydrogenosomes, bacteria inside vacuoles and many vesicles (Figs 13-15). Higher magnification shows that the cytoplasm of the peripheral zone is composed of a microfibrillar network, and also ...
Leaf epidermal studies of three species of Acalypha Linn.
... significance in understanding the relationships between and within species. The methods of numerical taxonomy have been used by many authors in classifying plants as well as interpreting results of taxonomic studies (Fabio, 2007; Borazan and Babac, 2003) methods are considered to be unbiased indicat ...
... significance in understanding the relationships between and within species. The methods of numerical taxonomy have been used by many authors in classifying plants as well as interpreting results of taxonomic studies (Fabio, 2007; Borazan and Babac, 2003) methods are considered to be unbiased indicat ...
Characterization of a von Hippel Lindau Pathway Involved in
... the development of highly angiogenic tumors including renal cell carcinoma (RCC), hemangioblastomas of the central nervous system, and pheochromocytoma (2–4). These highly vascularized tumors make VHL disease an ideal model to study angiogenesis. Angiogenesis, which involves the growth of new capill ...
... the development of highly angiogenic tumors including renal cell carcinoma (RCC), hemangioblastomas of the central nervous system, and pheochromocytoma (2–4). These highly vascularized tumors make VHL disease an ideal model to study angiogenesis. Angiogenesis, which involves the growth of new capill ...
Pollen cytoskeleton during germination and tube growth
... polarization: actin filaments and microtubules are arranged along the elongation axis of the pollen tube and their orientation determines the cytoplasmic polarization of the tube. In addition, actin filaments and microtubules show a gradient of organization that matches the gradient of ions and mole ...
... polarization: actin filaments and microtubules are arranged along the elongation axis of the pollen tube and their orientation determines the cytoplasmic polarization of the tube. In addition, actin filaments and microtubules show a gradient of organization that matches the gradient of ions and mole ...
(2016) Target selection during protein quality control. Trends
... unique criteria and mechanisms for distinguishing right from wrong, they appear to share several general concepts. We discuss principles of high-fidelity target recognition, the decisive event of all protein QC pathways, to guide future work in this area. The Importance of Protein QC QC pathways cons ...
... unique criteria and mechanisms for distinguishing right from wrong, they appear to share several general concepts. We discuss principles of high-fidelity target recognition, the decisive event of all protein QC pathways, to guide future work in this area. The Importance of Protein QC QC pathways cons ...
Dystroglycan controls signaling of multiple hormones through
... failure of lactation. Surprisingly, loss of DG in vivo did not disrupt normal tissue architecture or BM formation, even though cultured Dag1-null epithelial cells failed to assemble laminin-111 at the cell surface. The absence of DG was, however, associated with a marked loss in activity of signal t ...
... failure of lactation. Surprisingly, loss of DG in vivo did not disrupt normal tissue architecture or BM formation, even though cultured Dag1-null epithelial cells failed to assemble laminin-111 at the cell surface. The absence of DG was, however, associated with a marked loss in activity of signal t ...
Full-Text PDF
... Herpesviruses are large and structurally complex DNA viruses that infect a wide variety of vertebrates and cause many clinical and veterinary problems. The envelope of herpesviruses includes many different viral envelope proteins, for example the alphaherpesvirus herpes simplex virus-1 (HSV-1) envel ...
... Herpesviruses are large and structurally complex DNA viruses that infect a wide variety of vertebrates and cause many clinical and veterinary problems. The envelope of herpesviruses includes many different viral envelope proteins, for example the alphaherpesvirus herpes simplex virus-1 (HSV-1) envel ...
Metabolomics of a single vacuole reveals metabolic dynamism in an
... Our method to isolate vacuoles has several advantages over other methods such as the perfusion method, which is also a superior method for isolating a pure, single vacuole from a single cell (Sakano and Tazawa, 1984). However, the perfusion method is more time consuming than our vacuolar isolation m ...
... Our method to isolate vacuoles has several advantages over other methods such as the perfusion method, which is also a superior method for isolating a pure, single vacuole from a single cell (Sakano and Tazawa, 1984). However, the perfusion method is more time consuming than our vacuolar isolation m ...
Mineralogy - Carleton College
... • Nearly all minerals are crystalline solids composed of atoms or ions held in an orderly, 3-D array by inter atomic forces. Such array of atoms are called crystal structure and are characterized by periodic duplication of any grouping of atoms along any line through the structure. • In other wards ...
... • Nearly all minerals are crystalline solids composed of atoms or ions held in an orderly, 3-D array by inter atomic forces. Such array of atoms are called crystal structure and are characterized by periodic duplication of any grouping of atoms along any line through the structure. • In other wards ...
Auxin and the Communication Between Plant Cells
... BookID 158344_ChapID 01_Proof# 1 - 2/12/2008 ...
... BookID 158344_ChapID 01_Proof# 1 - 2/12/2008 ...
Three Domains of Life
... Prokaryotic Cell Structure • Prokaryotes have a tough cell wall and other external structures • Cell wall consists of peptidoglycan; a rigid network of polysaccharide strands cross-linked by peptide side chains; unique to Bacteria • Maintains the shape of the cell and protects it from swelling and ...
... Prokaryotic Cell Structure • Prokaryotes have a tough cell wall and other external structures • Cell wall consists of peptidoglycan; a rigid network of polysaccharide strands cross-linked by peptide side chains; unique to Bacteria • Maintains the shape of the cell and protects it from swelling and ...
SIM002 Sig Tech Liquid Kelp - hugh
... presence and activity of hormones turf would not grow. Plant Hormones control the rate and direction of growth and are only required in very small amounts. Auxins (Indole Acetic Acid) controls cell expansion, elongation and help initiate cell division. It affects the elasticity of cell walls (like b ...
... presence and activity of hormones turf would not grow. Plant Hormones control the rate and direction of growth and are only required in very small amounts. Auxins (Indole Acetic Acid) controls cell expansion, elongation and help initiate cell division. It affects the elasticity of cell walls (like b ...
Transport Across Cell Membrane - Bioenergetics and Cell Metabolism
... These are exemplified by two ionophores (ion carriers produced by microorganisms): valinomycin (a carrier) gramicidin (a channel). ...
... These are exemplified by two ionophores (ion carriers produced by microorganisms): valinomycin (a carrier) gramicidin (a channel). ...
File
... Prokaryotic Cell Structure • Prokaryotes have a tough cell wall and other external structures • Cell wall consists of peptidoglycan; a rigid network of polysaccharide strands cross-linked by peptide side chains; unique to Bacteria • Maintains the shape of the cell and protects it from swelling and ...
... Prokaryotic Cell Structure • Prokaryotes have a tough cell wall and other external structures • Cell wall consists of peptidoglycan; a rigid network of polysaccharide strands cross-linked by peptide side chains; unique to Bacteria • Maintains the shape of the cell and protects it from swelling and ...
Chapter 36 PowerPoint
... summer and sugar source in winter • Sugar must be loaded into sieve-tube elements before being exposed to sinks ...
... summer and sugar source in winter • Sugar must be loaded into sieve-tube elements before being exposed to sinks ...
Notes
... Hypotonic Solutions: contain a low concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypotonic solution, the water diffuses into the cell, causing the cell to swell and possibly explode. (cytolysis) Chapter menu ...
... Hypotonic Solutions: contain a low concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypotonic solution, the water diffuses into the cell, causing the cell to swell and possibly explode. (cytolysis) Chapter menu ...
Cell Size Distributions of Soil Bacterial and Archaeal
... identity (22) to remove sequences with less than 60% similarity (0.2% of the sequences). Next, sequences were clustered at the 97% sequence similarity level using the same database. Those sequences which failed to cluster (26% of the prefiltered sequences) were subsampled for de novo OTU picking, an ...
... identity (22) to remove sequences with less than 60% similarity (0.2% of the sequences). Next, sequences were clustered at the 97% sequence similarity level using the same database. Those sequences which failed to cluster (26% of the prefiltered sequences) were subsampled for de novo OTU picking, an ...
Cytokinesis
Cytokinesis (cyto- + kinesis) is the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the early stages of mitosis, and sometimes meiosis, splitting a mitotic cell in two, to ensure that chromosome number is maintained from one generation to the next. After cytokinesis two (daughter) cells will be formed that are exact copies of the (parent) original cell. After cytokinesis, each daughter cell is in the interphase portion of the cell cycle. In animal cells, one notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. Another form of mitosis without cytokinesis occurs in the liver, yielding multinucleate cells. In plant cells, a dividing structure known as the cell plate forms within the centre of the cytoplasm and a new cell wall forms between the two daughter cells.Cytokinesis is distinguished from the prokaryotic process of binary fission.