RNA Processing Bodies, Peroxisomes, Golgi Bodies, Mitochondria
... by the cytoskeleton. In plants, actin filaments sustain the long-distance transport of many types of organelles, and microtubules typically fine-tune the motile behavior. In shoot epidermal cells of Arabidopsis thaliana seedlings, we show here that a type of RNA granule, the RNA processing body (P-b ...
... by the cytoskeleton. In plants, actin filaments sustain the long-distance transport of many types of organelles, and microtubules typically fine-tune the motile behavior. In shoot epidermal cells of Arabidopsis thaliana seedlings, we show here that a type of RNA granule, the RNA processing body (P-b ...
Single Molecule approach to molecular biology in living
... buried in the genomic DNA? How does a particular gene get turned on and off, and how do transcription and translation processes occur in real time? How is chromosomal DNA replicated? How do DNA repair mechanisms restore the integrity of incorrectly synthesized or damaged DNA? Can quantitative inform ...
... buried in the genomic DNA? How does a particular gene get turned on and off, and how do transcription and translation processes occur in real time? How is chromosomal DNA replicated? How do DNA repair mechanisms restore the integrity of incorrectly synthesized or damaged DNA? Can quantitative inform ...
Host Pathogen Interaction at the Plant Cell Wall
... Production of ROS is one of the earliest cellular responses following successful pathogen recognition via consumption of oxygen in a so-called oxidative burst (Ashry and Mohamed, 2011). The oxidative burst has been known for more than 30 years in mammals (Wojtaszek, 1997). However, in plants the phe ...
... Production of ROS is one of the earliest cellular responses following successful pathogen recognition via consumption of oxygen in a so-called oxidative burst (Ashry and Mohamed, 2011). The oxidative burst has been known for more than 30 years in mammals (Wojtaszek, 1997). However, in plants the phe ...
Epidermal Pavement Cells of Arabidopsis Have
... and observations obtained independently in several different labs are presented (Fig. 1). Chlorophyll autofluorescence (emission peak 485 nm) is routinely detected using epifluorescent microscopy (B-3A long-pass filter set) as well as confocal laser scanning microscopy (excitation 488 nm; emission c ...
... and observations obtained independently in several different labs are presented (Fig. 1). Chlorophyll autofluorescence (emission peak 485 nm) is routinely detected using epifluorescent microscopy (B-3A long-pass filter set) as well as confocal laser scanning microscopy (excitation 488 nm; emission c ...
Studies on the Bacterial Component of Soybean Root
... preparations there was a certain amount of shrinkage of the bacteroids resulting in empty spaces between them and their cell walls; it is probable that in life these were closely applied to the surface of the bacteroids. The space between the bacteroid walls and the membrane envelope was occupied by ...
... preparations there was a certain amount of shrinkage of the bacteroids resulting in empty spaces between them and their cell walls; it is probable that in life these were closely applied to the surface of the bacteroids. The space between the bacteroid walls and the membrane envelope was occupied by ...
Polarization of Endocytosis and Receptor
... Membrane receptors for phagocytic particles are not confined to the protuberance but rather may display their own unique topographical asymmetry. The inherent topography of receptors was inferred from particle distribution under conditions that limit particle-receptor redistribution (after labeling ...
... Membrane receptors for phagocytic particles are not confined to the protuberance but rather may display their own unique topographical asymmetry. The inherent topography of receptors was inferred from particle distribution under conditions that limit particle-receptor redistribution (after labeling ...
αvβ3 integrin-dependent endothelial cell dynamics in
... were aligned in such a way that major embryonic features (intersomitic clefts and the notochord) remained stationary in the resulting image sequences. The same translations were implemented onto the epifluorescence image sequences as well, keeping the DIC/epifluorescence image pairs in register. To ...
... were aligned in such a way that major embryonic features (intersomitic clefts and the notochord) remained stationary in the resulting image sequences. The same translations were implemented onto the epifluorescence image sequences as well, keeping the DIC/epifluorescence image pairs in register. To ...
Regulation by Polyamines of Ornithine
... synchronized C. reinhardtii cultures. Cultures of the wall-deficient C. reinhardtii strain cw-15 were synchronized by growth under a constant light-dark regime of 14 h of light and 10 h of darkness for 4 d. On the day before the experiment, the cultures were divided and the subcultures diluted with ...
... synchronized C. reinhardtii cultures. Cultures of the wall-deficient C. reinhardtii strain cw-15 were synchronized by growth under a constant light-dark regime of 14 h of light and 10 h of darkness for 4 d. On the day before the experiment, the cultures were divided and the subcultures diluted with ...
Reflection Paper on stem cell-based medicinal - EMA
... They are lineage-committed cells as they can differentiate towards mesenchymal lineages, mainly adipogenic, osteogenic and chondrogenic cell lineages. Under appropriate culture conditions in vitro differentiation to tenocytes, skeletal myocytes, astrocytes and neurons has been described. Tissue spec ...
... They are lineage-committed cells as they can differentiate towards mesenchymal lineages, mainly adipogenic, osteogenic and chondrogenic cell lineages. Under appropriate culture conditions in vitro differentiation to tenocytes, skeletal myocytes, astrocytes and neurons has been described. Tissue spec ...
N1 - Herrin High School
... Question: Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use? a. chloroplast b. endoplasmic reticulum c. mitochondrion ...
... Question: Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use? a. chloroplast b. endoplasmic reticulum c. mitochondrion ...
Humoral Immunity Skit
... Narrator: Once upon a time, in the magical world of immunology existed Muggle cells, who without a care, performed daily activities that helped the body function normally. But in this world existed a great evil – an entity known as ‘The particle-that-must-not-be-named’. Its real name was Anti Gen. D ...
... Narrator: Once upon a time, in the magical world of immunology existed Muggle cells, who without a care, performed daily activities that helped the body function normally. But in this world existed a great evil – an entity known as ‘The particle-that-must-not-be-named’. Its real name was Anti Gen. D ...
A Vacuolar Processing Enzyme, dVPE, Is Involved in Seed Coat
... Figures 6A to 6D show the cytological changes in the inner integuments of developing wild-type seeds at the torpedoshaped-embryo stages. At first, cells in the ii2 layer started shrinkage and plasmolysis (Figure 6A). The plasma membrane and tonoplast are partially disrupted (indicated by an asterisk ...
... Figures 6A to 6D show the cytological changes in the inner integuments of developing wild-type seeds at the torpedoshaped-embryo stages. At first, cells in the ii2 layer started shrinkage and plasmolysis (Figure 6A). The plasma membrane and tonoplast are partially disrupted (indicated by an asterisk ...
T Regulatory Cells 1 Inhibit a Th2
... immunization. In contrast to the situation where Th1 and Th2 T cell clones were transferred, no helper activity on Ig secretion was detected after injection of Tr1 T cell clones. Instead, the OVAspecific IgE response was inhibited by 90% by the transferred Tr1 clones, whereas OVA-specific IgG1 and I ...
... immunization. In contrast to the situation where Th1 and Th2 T cell clones were transferred, no helper activity on Ig secretion was detected after injection of Tr1 T cell clones. Instead, the OVAspecific IgE response was inhibited by 90% by the transferred Tr1 clones, whereas OVA-specific IgG1 and I ...
Visualizing_the_mechanical_activation_of_Src
... Phosphorylation of Tyr still occurs if just one Tyr is mutated but binding doesn’t Neighboring amino acids are important for SH2 binding ...
... Phosphorylation of Tyr still occurs if just one Tyr is mutated but binding doesn’t Neighboring amino acids are important for SH2 binding ...
A matter of size: developmental control of organ size in plants
... flowers and petals of Brassica napus, another member of Brassicaceae, are always much larger than those of Arabidopsis (Figure 1). Although it has long been established that organ size within a species is constant but differs among species, the developmental mechanisms that regulate the inherent org ...
... flowers and petals of Brassica napus, another member of Brassicaceae, are always much larger than those of Arabidopsis (Figure 1). Although it has long been established that organ size within a species is constant but differs among species, the developmental mechanisms that regulate the inherent org ...
MORPHOLOGICAL ALTERATIONS
... • Cell death as the result of injury, disease, or pathological state • Usually involves large numbers of cells. • Necrotic cells may spill their contents, causing inflammation and injury to neighboring cells. Many types; • Coagulative necrosis, • Caseous necrosis • Liquefactive necrosis • Fat necros ...
... • Cell death as the result of injury, disease, or pathological state • Usually involves large numbers of cells. • Necrotic cells may spill their contents, causing inflammation and injury to neighboring cells. Many types; • Coagulative necrosis, • Caseous necrosis • Liquefactive necrosis • Fat necros ...
Protista: nature`s superstore
... holdfasts to attach to rocks. They grow in tropical waters or along rocky coasts in cold water. In addition to chlorophyll, red algae also contain photosynthetic pigments called phycobilins. These pigments absorb green, violet, and blue light- the only part of the light spectrum that penetrates wate ...
... holdfasts to attach to rocks. They grow in tropical waters or along rocky coasts in cold water. In addition to chlorophyll, red algae also contain photosynthetic pigments called phycobilins. These pigments absorb green, violet, and blue light- the only part of the light spectrum that penetrates wate ...
Ophiobolin A from Bipolaris oryzae Perturbs Motility and Membrane
... accelerated shivering mode of tail motion during the fluorescence microscopic examinations and their hyperactivity was observed (Figure 4). This motility change seems to be comparable to the phenomenon showed during the normal fertilization process, where sperm tails must switch from an easy, symmet ...
... accelerated shivering mode of tail motion during the fluorescence microscopic examinations and their hyperactivity was observed (Figure 4). This motility change seems to be comparable to the phenomenon showed during the normal fertilization process, where sperm tails must switch from an easy, symmet ...
933 - Scope, Sequence, and Coordination
... Remove the filter paper strip and lay it on the lab table. Make a pencil dot between the notches. Add a drop of the leaf pigment solution at this dot using the small glass pipette. The solution will flow quickly so hold the pipette on the filter paper for a very short time. A small circle of solutio ...
... Remove the filter paper strip and lay it on the lab table. Make a pencil dot between the notches. Add a drop of the leaf pigment solution at this dot using the small glass pipette. The solution will flow quickly so hold the pipette on the filter paper for a very short time. A small circle of solutio ...
improving methodological strategies for satellite cells counting in
... Satellite cells are relatively rare structures, probably evenly distributed along individual muscle fibres, but more concentrated within end plate regions. When activated they enter the mytotic cycle, proliferate and fuse either with each other or with the existing muscle fibres. The main function o ...
... Satellite cells are relatively rare structures, probably evenly distributed along individual muscle fibres, but more concentrated within end plate regions. When activated they enter the mytotic cycle, proliferate and fuse either with each other or with the existing muscle fibres. The main function o ...
AP Biology - TeacherWeb
... flow of K+ out of cell stops activation of Na+ channels in wrong direction ...
... flow of K+ out of cell stops activation of Na+ channels in wrong direction ...
Cytokines (I)
... and binds to a receptor on a target cell in close proximity to the producing cell ...
... and binds to a receptor on a target cell in close proximity to the producing cell ...
Survival Mechanisms of Extremophiles
... phenomenon in Thermoplasma acidophilum, whose cell membranes are made of tetraether lipids. Other examples of acidophiles include Picrophilus oshimae (van de Vossenberg et al. 1998a), Sulfolobus solfataricus (van de Vossenberg et al. 1998b), Ferroplasma acidarmanus (Macalady and Banfield 2003), and F ...
... phenomenon in Thermoplasma acidophilum, whose cell membranes are made of tetraether lipids. Other examples of acidophiles include Picrophilus oshimae (van de Vossenberg et al. 1998a), Sulfolobus solfataricus (van de Vossenberg et al. 1998b), Ferroplasma acidarmanus (Macalady and Banfield 2003), and F ...
Gram Positive Bacteria Marker (3811): sc-58136
... Bacteria cells are classified as Gram-positive if they retain a crystal violet dye during the Gram stain process. Gram-positive bacteria appear blue or violet under a microscope after the stain has been applied, whereas Gramnegative bacterial look red or pink. This difference in color is mainly due ...
... Bacteria cells are classified as Gram-positive if they retain a crystal violet dye during the Gram stain process. Gram-positive bacteria appear blue or violet under a microscope after the stain has been applied, whereas Gramnegative bacterial look red or pink. This difference in color is mainly due ...
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.