immunohistological study of mannan polysaccharides in poplar stem
... Mannan polysaccharides serve as storage reserves in seeds and as structure elements in cell walls, but they may also perform other important functions during plant growth. As one of the major hemicelluloses in angiosperm wood, little is known about the presence and localization of mannan polysacchar ...
... Mannan polysaccharides serve as storage reserves in seeds and as structure elements in cell walls, but they may also perform other important functions during plant growth. As one of the major hemicelluloses in angiosperm wood, little is known about the presence and localization of mannan polysacchar ...
Mycobacterium tuberculosis
... 3- Coughing by people with active TB produces droplet nuclei containing infectious organisms which can remain suspended in the air for several hours. Infection occurs if inhalation of these droplets results in the organism reaching the alveoli of the lungs. Only 10% of immunocompetent people infecte ...
... 3- Coughing by people with active TB produces droplet nuclei containing infectious organisms which can remain suspended in the air for several hours. Infection occurs if inhalation of these droplets results in the organism reaching the alveoli of the lungs. Only 10% of immunocompetent people infecte ...
Mineral formation by bacteria in natural microbial communities
... that the bacteria were instrumental in their formation, rather than simply binding pre-formed detrital minerals, since the composition of silicates clearly not associated with bacterial cells often di¡ers markedly from those found on the cell. In addition, these precipitates are more crystalline and ...
... that the bacteria were instrumental in their formation, rather than simply binding pre-formed detrital minerals, since the composition of silicates clearly not associated with bacterial cells often di¡ers markedly from those found on the cell. In addition, these precipitates are more crystalline and ...
Organelle Division and Cytoplasmic Inheritance
... The initial sign of MD-ring formation is the movement of a microbody to the region between the mitochondrion and the ceIl nucleus (Figure 3al, aIl). An MD-ring that is 40-nm wide and 40-nm thick forms in the cytoplasm at the point ar which the microbody has atrached to the mitoehondrion. Furtherrno ...
... The initial sign of MD-ring formation is the movement of a microbody to the region between the mitochondrion and the ceIl nucleus (Figure 3al, aIl). An MD-ring that is 40-nm wide and 40-nm thick forms in the cytoplasm at the point ar which the microbody has atrached to the mitoehondrion. Furtherrno ...
Prokaryotes – Bacteria
... kókkos, grain, and seed) or rod-shaped, called bacilli (sing. bacillus, from Latin baculus, stick). Elongation is associated with swimming. Some rod-shaped bacteria, called vibrio, are slightly curved or comma-shaped; others, can be spiral-shaped, called spirilla, or tightly coiled, called spirochae ...
... kókkos, grain, and seed) or rod-shaped, called bacilli (sing. bacillus, from Latin baculus, stick). Elongation is associated with swimming. Some rod-shaped bacteria, called vibrio, are slightly curved or comma-shaped; others, can be spiral-shaped, called spirilla, or tightly coiled, called spirochae ...
The Plant Extracellular Matrix: News from the Cell`s Frontier
... confirmed the structure of the major crosslinking glycan, xylogucan (XyG), and as a result, they proposed the first model of the plant’s primary cell wall. At that time many researcherswere deducing linkage structures of plant polysaccharides, but Albersheim’s group was the first to assemble a worki ...
... confirmed the structure of the major crosslinking glycan, xylogucan (XyG), and as a result, they proposed the first model of the plant’s primary cell wall. At that time many researcherswere deducing linkage structures of plant polysaccharides, but Albersheim’s group was the first to assemble a worki ...
Inflammation - Energetic Nutrition
... such as multiple sclerosis, rheumatoid arthritis, psoriasis and diabetes, are associated with an increase level of IFNγ. ...
... such as multiple sclerosis, rheumatoid arthritis, psoriasis and diabetes, are associated with an increase level of IFNγ. ...
Perspectives in the Coordinate Regulation of Cell Cycle Events in
... following section. DNA replication, chromosome segregation, thylakoid formation and early proteins of cell division occur concurrently at C period The C period has long been considered as the phase where DNA is replicated. However, investigations of E. coli cell cycle indicate that DNA replication, ...
... following section. DNA replication, chromosome segregation, thylakoid formation and early proteins of cell division occur concurrently at C period The C period has long been considered as the phase where DNA is replicated. However, investigations of E. coli cell cycle indicate that DNA replication, ...
I m munoisolation of Kex2p-containing organelles from yeast
... in the samples analysed). This recovery of Kex2p by ImAd was completely blocked by preincubation of the ImAd with the βGal-Kex2 fusion protein against which the Kex2p-specific antibodies had been affinity-purified, but not by preincubation with an unrelated βGal fusion protein (data not shown). The ...
... in the samples analysed). This recovery of Kex2p by ImAd was completely blocked by preincubation of the ImAd with the βGal-Kex2 fusion protein against which the Kex2p-specific antibodies had been affinity-purified, but not by preincubation with an unrelated βGal fusion protein (data not shown). The ...
Melanoma cell lysate induces CCR7 expression and in vivo
... This last step allowed us to maintain the cells that were able to pass through the filter’s pore to the opposite side. Dry filters were further analysed using an inverted microscope (Leica DM IL, Wetzlar, Germany). Cells considered to have migrated through the pores were counted from five representa ...
... This last step allowed us to maintain the cells that were able to pass through the filter’s pore to the opposite side. Dry filters were further analysed using an inverted microscope (Leica DM IL, Wetzlar, Germany). Cells considered to have migrated through the pores were counted from five representa ...
The Plant Extracellular Matrix: News from the Cell`s
... confirmed the structure of the major crosslinking glycan, xylogucan (XyG), and as a result, they proposed the first model of the plant’s primary cell wall. At that time many researcherswere deducing linkage structures of plant polysaccharides, but Albersheim’s group was the first to assemble a worki ...
... confirmed the structure of the major crosslinking glycan, xylogucan (XyG), and as a result, they proposed the first model of the plant’s primary cell wall. At that time many researcherswere deducing linkage structures of plant polysaccharides, but Albersheim’s group was the first to assemble a worki ...
Gastrulation in Drosophila: the logic and the cellular mechanisms
... specifically activated in these cells, and so the two regions in which the cell-shape changes occur must be different from the rest of the embryo. The rules and mechanisms that govern the specification of these regions are in fact well understood (reviewed in St Johnston and NüssleinVolhard, 1992). ...
... specifically activated in these cells, and so the two regions in which the cell-shape changes occur must be different from the rest of the embryo. The rules and mechanisms that govern the specification of these regions are in fact well understood (reviewed in St Johnston and NüssleinVolhard, 1992). ...
Adhesion molecules in cancer invasion and metastasis
... generated may be dependent on the specific integrinligand interaction 9,10. Thus it was recently shown that upregulation of Bcl-2 expression, a means of suppressing apoptotic death, occurred when attachment to a fibronectin substrate was mediated through one (á5â1) but not the other of two fibronect ...
... generated may be dependent on the specific integrinligand interaction 9,10. Thus it was recently shown that upregulation of Bcl-2 expression, a means of suppressing apoptotic death, occurred when attachment to a fibronectin substrate was mediated through one (á5â1) but not the other of two fibronect ...
Endoplasmosis and exoplasmosis: the evolutionary principles
... a provoking but intriguing aspect to regard all nonplasmatic compartments within the cell as spheres, which are in some way functionally outside of the cell. The ER for instance can be regarded as first outstation of the cell in the course of secretion, which might have evolved as an internalised an ...
... a provoking but intriguing aspect to regard all nonplasmatic compartments within the cell as spheres, which are in some way functionally outside of the cell. The ER for instance can be regarded as first outstation of the cell in the course of secretion, which might have evolved as an internalised an ...
Lecture 10: Introduction to Bacteria (Structure, Growth
... •Genus capitalized and species name not capitalized •Can be abbreviate Genus name but not species name •Correct: Bacillus anthracis, B. anthracis •Incorrect: Bacillus Anthracis, Bacillus Anthracis, Bacillus a. Bacterial Cell Structures ...
... •Genus capitalized and species name not capitalized •Can be abbreviate Genus name but not species name •Correct: Bacillus anthracis, B. anthracis •Incorrect: Bacillus Anthracis, Bacillus Anthracis, Bacillus a. Bacterial Cell Structures ...
Derivation of haploid embryonic stem cells from mouse embryos
... mouse embryos6, most cells in surviving embryos become diploid. Here we describe haploid mouse embryonic stem cells and show their application in forward genetic screening. Previous attempts to establish pluripotent stem-cell lines from haploid mouse embryos have resulted in the isolation of parthen ...
... mouse embryos6, most cells in surviving embryos become diploid. Here we describe haploid mouse embryonic stem cells and show their application in forward genetic screening. Previous attempts to establish pluripotent stem-cell lines from haploid mouse embryos have resulted in the isolation of parthen ...
Teacher support material
... When a cell can reproduce and give two new cells with the same genetic information, this is called mitosis. Mitosis phases are: prophase, metaphase, anaphase and telophase. All cell activities are controlled by the nucleus, which contains DNA or Chromosomes. All the chemical reactions that take plac ...
... When a cell can reproduce and give two new cells with the same genetic information, this is called mitosis. Mitosis phases are: prophase, metaphase, anaphase and telophase. All cell activities are controlled by the nucleus, which contains DNA or Chromosomes. All the chemical reactions that take plac ...
Production of Bacteriolytic Enzymes and Degradation
... pH was present in the supernatant from Chrysosporiumsp. Release of free amino groups by these enzymes was consistent with the possession of an endopeptidase or an N-acetylmuramyl-Lalanine amidase (Ghuysen, 1968), although the non-linear kinetics and the release of low levels of reducing groups sugge ...
... pH was present in the supernatant from Chrysosporiumsp. Release of free amino groups by these enzymes was consistent with the possession of an endopeptidase or an N-acetylmuramyl-Lalanine amidase (Ghuysen, 1968), although the non-linear kinetics and the release of low levels of reducing groups sugge ...
PDF
... discussed the advantages of the zebrafish model for the study of embryonic myogenesis. Zebrafish embryos are optically clear, which allows for easy lineage-tracking in live embryos. By using confocal imaging and informatics systems, researchers can follow the cellular trajectories of one to hundreds ...
... discussed the advantages of the zebrafish model for the study of embryonic myogenesis. Zebrafish embryos are optically clear, which allows for easy lineage-tracking in live embryos. By using confocal imaging and informatics systems, researchers can follow the cellular trajectories of one to hundreds ...
Membrane Transport
... A phagocytic cell comes in contact with the foreign object and sends pseudopodia (cytoplasmic extensions) around it. ...
... A phagocytic cell comes in contact with the foreign object and sends pseudopodia (cytoplasmic extensions) around it. ...
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.